What is Bitcoin? - Ultimate Beginner's Guide 2020 ...

Bitcoin Fullnode Install Guide for Dummies ;-)

Bitcoin Fullnode Install Guide for Dummies ;-)
Feel free to stop at Level 0 or Level 1, which is fine. More advanced configs are offered to those with more tech savvy. This guide, obviously assumes a Windows 10 install, but other OSes work fine, just find a different guide. BTW, the "For Dummies" is a callback to a set of "tech" books in the 90's intended to be as easy as possible. It is in jest and not intended to insult the reader. Finally, if you dislike the formatting, a well formatted copy can be found here
There is a fairly small subset of Bitcoin users that run a full node. I think the idea of running a full node has gotten a bad rap over the years since there is so much talk about running on a Raspberry Pi, or getting zippy SSDs. Although all of this can be fun, it is often not really required at all. Here are some ways to run a full node starting with the very simple. I'll get into more complex configs, but these are all optional.

Tech Skill Level: 0 (the basics)

  1. Download Bitcoin Core
  2. Launch the downloaded installer and install the app
  3. Launch the installed "Bitcoin Core" app and let it run overnight
In many cases, thats it. If your running a new machine with a fairly good internet connection, 8 or 9 hours will be enough to complete the "Initial Block Download" (IBD). This may fill up your drive a bit, but again, on most new machines, 300 GB of space isn't that hard to come by.

Tech Skill Level: 1 (encrypted wallet)

One thing we left out in the level-0 exercise is encrypting your wallet. It's easy enough to do well, but a bit more difficult to do right. The main challenge is that humans generate really poor passwords. If you want a good password, the best way is to use something called "diceware". Basically, you just grab 4 or 5 dice and each throw of the dice represents a certain word on a special list. The throw {1,4,5,3,1} for example would be the word camping on the EFF-diceware-wordlist. So you repeat this a few times until you have a list of 8 or so words which becomes the passphrase you use to encrypt your wallet. Write it down, it is always hard to remember at first. So at level-1 your list becomes:
  1. Download Bitcoin Core
  2. Launch the downloaded installer and install the app
  3. Launch the installed "Bitcoin Core" app and let it run overnight
  4. Choose Encrypt Wallet from the Settings menu
  5. Enter your 8 word (or so) passphrase generated using the Diceware method

Wallet Encryption Dialog

Tech Skill Level: 2 (enable pruning if needed)

Though I said "300 GB of space isn't hard to come by", some times it actually is. If space is an issue, a simple way to fix it is to tell bitcoin to simple take less space. This is called "pruning" and can take that number from 300 GB down to below 5 GB. If you can't find 5 GB, then you'll have to read ahead to level-4 to add USB storage. But the good news is, enabling pruning is pretty easy, we just add another step to our working list:
  1. Download Bitcoin Core
  2. Launch the downloaded installer and install the app
  3. Launch the installed "Bitcoin Core" app and let it run overnight
  4. Do the wallet encryption steps here if you wish
  5. Choose Options from the Settings menu
  6. Choose Prune block storage to: and select the max size for the blocks to use
  7. Exit and restart the bitcoin application for the changes to take effect

Pruning Dialog
Note, even setting this to 1 GB will still leave you with about a 4.5 GB install. The blocks take up a lot of space, but the chainstate and other folders eat up at least 3.5 GB and they can't be pruned. Also, be aware, to disable pruning requires you to perform the entire IBD again. While pruned some other functions my be disabled as well, so just know that pruning does limit some functionality.

Tech Skill Level: 3 (verify the installer)

Although this is arguably something that should be done at level-0, some find the intricacies of comparing hash (thumbprint) values to be tedious and beyond the scope of a beginner. You will find these types of hash compares suggested quite often as a way to prevent running tainted programs. Programs are often tainted by bad disk or network performance, but most often, taint is malicious code inserted by viruses or malware. This is a way to guard yourself against those types of attacks.
What I cover here is a very basic comparison on the certificate, but a more thorough verification advised by mosts uses a program called Gpg4Win, and is beyond the scope of this beginners guide. But regardless, most users should strive to do this minimum level of validation.
  1. Download Bitcoin Core
  2. Launch the downloaded installer
  3. When prompted "Do you want to allow..." click Show more details
  4. In the details section select Show information about the publisher's certificate
  5. In the certificate window select the Details tab
  6. In the Details tab Subject should start with "CN = Bitcoin Core Code Signing Association"
  7. Ensure Thumbprint in Details reads ea27d3cefb3eb715ed214176a5d027e01ba1ee86
  8. If the checks pass, click OK to exit the certificate window and Yes to allow the installer to run.
  9. Launch the installed "Bitcoin Core" app and let it run overnight
  10. Do the wallet encryption steps here if you wish
  11. Do the optional pruning steps here if you wish

Certification Validation Windows
Note: The certificate used to sign the current Bitcoin installer is only valid from March 2020 to March 2021. After that point the thumbprint on the certificate will change. This is by design and intentional. If your reading this post after March 2021, then it is understood that the thumbprint has changed.

Tech Skill Level: 4 (use secondary storage)

We glossed over the "new machine with fairly good internet" part. Truth be known many people do not have fairly new machines, and find the IBD to take longer than the "over night" best wishes. For most people the slowdown is the disk access when calculating what is called chainstate. This requires fast random reads and writes to the disk. If you have an SSD disk, this will be no problem, but if you have a non-SSD "spinning" disk, random writes are always slow. Though an SSD will speed things up, they are pricey, so a nice middle ground may be a simple high-end USB key drive. You can get some with 10 to 15 MB/s random writes for $20 on Amazon. This is usually a order of magnitude faster than a "spinning" disk. And with pruning (see level-2), a small USB drive should be fine.
Once you decide on a drive, the tricky part will be to enable external storage. It requires editing a configuration file and adding a line. First, we want to create a directory on the key drive. You will need to determine the drive letter of your USB key drive. For the sake of this example, we will assume it is D:, but you must determine this yourself and correct the example. Once you know the drive letter, create a blank folder on the drive called Bitcoin. So for this example, creating Bitcoin on drive D: will create the path D:\Bitcoin. Once done, assuming that D: is your drive, here are the new steps including the edit of the configuration file:
  1. Download Bitcoin Core
  2. Launch the installer, verify it, then run it
  3. Launch the installed "Bitcoin Core" app and let it run overnight
  4. Do the wallet encryption steps here if you wish
  5. Do the optional pruning steps here if you wish
  6. Launch "Notepad" by typing "Notepad.exe" in the windows search bar then click Open
  7. Type the line datadir=D:\Bitcoin (depending on your drive letter) in the blank file
  8. Choose Save from the File menu in notepad
  9. Type %APPDATA%\Bitcoin\bitcoin.conf (note the percent signs) in the File name box
  10. Select All Files from the Save as type dropdown
  11. Click the Save button and overwrite the file if prompted
  12. Exit and restart the bitcoin application for the changes to take effect

Save As Dialog
Now that you've reached this level of technical expertise, there are many new configuration options that you can begin to modify if you wish. Most configuration data is contained in the bitcoin.conf file and learning how to maintain it is a key step for a node operator.

Tech Skill Level: 5 (all other customizations)

Here's a short list of various things you can ADD to your bitcoin.conf file. You generally just add a new line for each configuration settings.
  • addresstype=bech32
  • changetype=bech32
The addresstype / changetype allows your wallet to use the native-segwit (bech32) format. This is the most efficient and inexpensive way to spend bitcoin, and is a recommended configuration. The default uses something called p2sh-segwit which is more compatible with older wallets, but more expensive to spend.
  • minrelaytxfee=0.00000011
Changing the minrelaytxfee setting allows you to help propagate lower fee transactions. It will require more memory but TXN memory is capped at 300 MB by default anyways, so if you have enough memory, it is a good setting to choose.
  • dbcache=2048
The dbcache setting controls how many MB of memory the program will use for the chainstate database. Since this is a key bottleneck in the IBD, setting this value high (2048 MB) will greatly speed up the IBD, assuming you have the memory to spare
  • blocksdir=C:\Bitcoin
  • datadir=D:\Bitcoin
In level-4 we discussed moving the datadir to a fast external storage, but the majority of the space used for bitcoin is the blocks directory (blocksdir). Although you should always use for fastest storage for datadir, you are free to use slow storage for blocksdir. So if you only want to consume a small amount of your SSD (assumed D:) then you can keep your blocks on your slow "spinning" drive.
  • upnp=1
One of the harder challenges you may face running a node, is to get incoming connections. If you are lucky, you may find that your firewall and network HW support the uPnP protocol. If they do, this setting will allow bitcoin to configure uPnP to allow incoming connections to your node. Other methods exist to make your node reachable, but they are well beyond the scope of this guide.
submitted by brianddk to Bitcoin [link] [comments]

Gridcoin 5.0.0.0-Mandatory "Fern" Release

https://github.com/gridcoin-community/Gridcoin-Research/releases/tag/5.0.0.0
Finally! After over ten months of development and testing, "Fern" has arrived! This is a whopper. 240 pull requests merged. Essentially a complete rewrite that was started with the scraper (the "neural net" rewrite) in "Denise" has now been completed. Practically the ENTIRE Gridcoin specific codebase resting on top of the vanilla Bitcoin/Peercoin/Blackcoin vanilla PoS code has been rewritten. This removes the team requirement at last (see below), although there are many other important improvements besides that.
Fern was a monumental undertaking. We had to encode all of the old rules active for the v10 block protocol in new code and ensure that the new code was 100% compatible. This had to be done in such a way as to clear out all of the old spaghetti and ring-fence it with tightly controlled class implementations. We then wrote an entirely new, simplified ruleset for research rewards and reengineered contracts (which includes beacon management, polls, and voting) using properly classed code. The fundamentals of Gridcoin with this release are now on a very sound and maintainable footing, and the developers believe the codebase as updated here will serve as the fundamental basis for Gridcoin's future roadmap.
We have been testing this for MONTHS on testnet in various stages. The v10 (legacy) compatibility code has been running on testnet continuously as it was developed to ensure compatibility with existing nodes. During the last few months, we have done two private testnet forks and then the full public testnet testing for v11 code (the new protocol which is what Fern implements). The developers have also been running non-staking "sentinel" nodes on mainnet with this code to verify that the consensus rules are problem-free for the legacy compatibility code on the broader mainnet. We believe this amount of testing is going to result in a smooth rollout.
Given the amount of changes in Fern, I am presenting TWO changelogs below. One is high level, which summarizes the most significant changes in the protocol. The second changelog is the detailed one in the usual format, and gives you an inkling of the size of this release.

Highlights

Protocol

Note that the protocol changes will not become active until we cross the hard-fork transition height to v11, which has been set at 2053000. Given current average block spacing, this should happen around October 4, about one month from now.
Note that to get all of the beacons in the network on the new protocol, we are requiring ALL beacons to be validated. A two week (14 day) grace period is provided by the code, starting at the time of the transition height, for people currently holding a beacon to validate the beacon and prevent it from expiring. That means that EVERY CRUNCHER must advertise and validate their beacon AFTER the v11 transition (around Oct 4th) and BEFORE October 18th (or more precisely, 14 days from the actual date of the v11 transition). If you do not advertise and validate your beacon by this time, your beacon will expire and you will stop earning research rewards until you advertise and validate a new beacon. This process has been made much easier by a brand new beacon "wizard" that helps manage beacon advertisements and renewals. Once a beacon has been validated and is a v11 protocol beacon, the normal 180 day expiration rules apply. Note, however, that the 180 day expiration on research rewards has been removed with the Fern update. This means that while your beacon might expire after 180 days, your earned research rewards will be retained and can be claimed by advertising a beacon with the same CPID and going through the validation process again. In other words, you do not lose any earned research rewards if you do not stake a block within 180 days and keep your beacon up-to-date.
The transition height is also when the team requirement will be relaxed for the network.

GUI

Besides the beacon wizard, there are a number of improvements to the GUI, including new UI transaction types (and icons) for staking the superblock, sidestake sends, beacon advertisement, voting, poll creation, and transactions with a message. The main screen has been revamped with a better summary section, and better status icons. Several changes under the hood have improved GUI performance. And finally, the diagnostics have been revamped.

Blockchain

The wallet sync speed has been DRASTICALLY improved. A decent machine with a good network connection should be able to sync the entire mainnet blockchain in less than 4 hours. A fast machine with a really fast network connection and a good SSD can do it in about 2.5 hours. One of our goals was to reduce or eliminate the reliance on snapshots for mainnet, and I think we have accomplished that goal with the new sync speed. We have also streamlined the in-memory structures for the blockchain which shaves some memory use.
There are so many goodies here it is hard to summarize them all.
I would like to thank all of the contributors to this release, but especially thank @cyrossignol, whose incredible contributions formed the backbone of this release. I would also like to pay special thanks to @barton2526, @caraka, and @Quezacoatl1, who tirelessly helped during the testing and polishing phase on testnet with testing and repeated builds for all architectures.
The developers are proud to present this release to the community and we believe this represents the starting point for a true renaissance for Gridcoin!

Summary Changelog

Accrual

Changed

Most significantly, nodes calculate research rewards directly from the magnitudes in EACH superblock between stakes instead of using a two- or three- point average based on a CPID's current magnitude and the magnitude for the CPID when it last staked. For those long-timers in the community, this has been referred to as "Superblock Windows," and was first done in proof-of-concept form by @denravonska.

Removed

Beacons

Added

Changed

Removed

Unaltered

As a reminder:

Superblocks

Added

Changed

Removed

Voting

Added

Changed

Removed

Detailed Changelog

[5.0.0.0] 2020-09-03, mandatory, "Fern"

Added

Changed

Removed

Fixed

submitted by jamescowens to gridcoin [link] [comments]

Test

Test
There is a fairly small subset of Bitcoin users that run a full node. I think the idea of running a full node has gotten a bad rap over the years since there is so much talk about running on a Raspberry Pi, or getting zippy SSDs. Although all of this can be fun, it is often not really required at all. Here are some ways to run a full node starting with the very simple. I'll get into more complex configs, but these are all optional.

Tech Skill Level: 0 (the basics)

  1. Download Bitcoin Core
  2. Launch the downloaded installer and install the app
  3. Launch the installed "Bitcoin Core" app and let it run overnight
In many cases, thats it. If your running a new machine with a fairly good internet connection, 8 or 9 hours will be enough to complete the "Initial Block Download" (IBD). This may fill up your drive a bit, but again, on most new machines, 300 GB of space isn't that hard to come by.

Tech Skill Level: 1 (encrypted wallet)

One thing we left out in the level-0 exercise is encrypting your wallet. It's easy enough to do well, but a bit more difficult to do right. The main challenge is that humans generate really poor passwords. If you want a good password, the best way is to use something called "diceware". Basically, you just grab 4 or 5 dice and each throw of the dice represents a certain word on a special list. The throw {1,4,5,3,1} for example would be the word camping on the EFF-diceware-wordlist. So you repeat this a few times until you have a list of 8 or so words which becomes the passphrase you use to encrypt your wallet. Write it down, it is always hard to remember at first. So at level-1 your list becomes:
  1. Download Bitcoin Core
  2. Launch the downloaded installer and install the app
  3. Launch the installed "Bitcoin Core" app and let it run overnight
  4. Choose Encrypt Wallet from the Settings Menu
  5. Enter your 8 word (or so) passphrase generated using the Diceware method

Wallet Encryption Dialog

Tech Skill Level: 2 (enable pruning if needed)

Though I said "300 GB of space isn't hard to come by", some times it actually is. If space is an issue, a simple way to fix it is to tell bitcoin to simple take less space. This is called "pruning" and can take that number from 300 GB down to below 5 GB. If you can't find 5 GB, then you'll have to read ahead to level-3 to add USB storage. But the good news is, enabling pruning is pretty easy, we just add another step to our working list:
  1. Download Bitcoin Core
  2. Launch the downloaded installer and install the app
  3. Launch the installed "Bitcoin Core" app and let it run overnight
  4. Do the wallet encryption steps here if you wish
  5. Choose Options from the Settings Menu
  6. Choose Prune block storage to: and select the max size for the blocks to use
  7. Exit and restart the bitcoin application for the changes to take effect

Pruning Dialog
Note, even setting this to 1 GB will still leave you with about a 4.5 GB install. The blocks take up a lot of space, but the chainstate and other folders eat up at least 3.5 GB and they can't be pruned. Also, be aware, to disable pruning requires you to perform the entire IBD again. While pruned some other functions my be disabled as well, so just know that pruning does limit some functionality.

Tech Skill Level: 3 (verify the installer)

Although this is arguably something that should be done at level-0, some find the intricacies of comparing hash (thumbprint) values to be tedious and beyond the scope of a beginner. You will find these types of hash compares suggested quite often as a way to prevent running tainted programs. Programs are often tainted by bad disk or network performance, but most often, taint is malicious code inserted by viruses or malware. This is a way to guard yourself against those types of attacks. What I cover here is a very basic comparison on the certificate, but a more thorough comparison advised by mosts uses a program called Gpg4Win, and is beyond the scope of this beginners guide. But regardless, most users should strive to do this minimum level of validation.
  1. Download Bitcoin Core
  2. Launch the downloaded installer
  3. When prompted "Do you want to allow..." click Show more details
  4. In the details section select Show information about the publisher's certificate
  5. In the certificate window select the Details tab
  6. In the Details tab Subject should start with "CN = Bitcoin Core Code Signing Association"
  7. Also ensure Thumbprint reads ea27d3cefb3eb715ed214176a5d027e01ba1ee86
  8. If the checks pass, click OK to exit the certificate window and Yes to allow the installer to run.
  9. Launch the installed "Bitcoin Core" app and let it run overnight
  10. Do the wallet encryption steps here if you wish
  11. Do the optional pruning steps here if you wish

Certification Validation Windows
Note: The certificate used to sign the current Bitcoin installer is only valid from March 2020 to March 2021. After that point the thumbprint on the certificate will change. This is by design and intentional. If your reading this post after March 2021, then it is understood that the thumbprint has changed.

Tech Skill Level: 4 (use secondary storage)

We glossed over the "new machine with fairly good internet" part. Truth me known many people do not have fairly new machines, and find the IBD to take longer than the "over night" best wishes. For most people the slowdown is the disk access when calculating what is called chainstate. This requires fast random reads and writes to the disk. If you have an SSD disk, this will be no problem, but if you have a non-SSD "spinning" disk, random writes are always slow. Though an SSD will speed things up, they are pricey, so a nice middle ground may be a simple high-end USB key drive. You can get some with 10 to 15 MB/s random writes which is usually a order of magnitude faster than a "spinning" disk. And with pruning (see level-2), a small USB drive should be fine.
Once you decide on a drive, the tricky part will be to enable external storage. It requires editing a configuration file and adding a few lines. The configuration file needs to be in both the default directory, and USB key drive, but before we do that, we want to create a directory on the key drive. You will need to determine the drive letter of your USB key drive. For the sake of this example, we will assume it is D:, but you must determine this yourself and correct the example. Once you know the drive letter, create a blank folder on the drive called Bitcoin. So for this example, creating Bitcoin on drive D: will create the path D:\Bitcoin. Once done, assuming that D: is your drive, here are the steps to edit the two configuration files:
  1. Download Bitcoin Core
  2. Launch the installer, verify it, then run it
  3. Launch the installed "Bitcoin Core" app and let it run overnight
  4. Do the wallet encryption steps here if you wish
  5. Do the optional pruning steps here if you wish
  6. Launch "Notepad" by typing "Notepad.exe" in the windows search bar then click Open
  7. Type the line datadir=D:\Bitcoin (depending on your drive letter) in the blank file
  8. Choose Save from the File menu in notepad
  9. Type %APPDATA%\Bitcoin\bitcoin.conf (note the percent signs) in the File name box
  10. Select All Files from the Save as type dropdown
  11. Click the Save button and overwrite the file if prompted
  12. Exit and restart the bitcoin application for the changes to take effect

Save As Dialog
Now that you've reached this level of technical expertise, there are many new configuration options that you can begin to modify if you wish. Most configuration data is contained in the bitcoin.conf file and learning how to maintain it is a key step for a node operator.

Tech Skill Level: 5 (all other customizations)

Here's a short list of various things you can ADD to your bitcoin.conf file. You generally just add a new line for each configuration settings.
  • addresstype=bech32
  • changetype=bech32
The addresstype / changetype allows your wallet to use the native-segwit (bech32) format. This is the most efficient and inexpensive way to spend bitcoin, and is a recommended configuration. The default uses something called p2sh-segwit which is more compatible with older wallets, but more expensive to spend.
  • minrelaytxfee=0.00000011
Changing the minrelaytxfee setting allows you to help propagate lower fee transactions. It will require more memory but TXN memory is capped at 300 MB by default anyways, so if you have enough memory, it is a good setting to choose.
  • dbcache=2048
The dbcache setting controls how many MB of memory the program will use for the chainstate database. Since this is a key bottleneck in the IBD, setting this value high (2048 MB) will greatly speed up the IBD, assuming you have the memory to spare
  • blocksdir=C:\Bitcoin
  • datadir=D:\Bitcoin
In level-4 we discussed moving the datadir to a fast external storage, but the majority of the space used for bitcoin is the blocks directory (blocksdir). Although you should always use for fastest storage for datadir, you are free to use slow storage for blocksdir. So if you only want to consume a small amount of your SSD (assumed D:) then you can keep your blocks on your slow "spinning" drive.
  • upnp=1
One of the harder challenges you may face running a node, is to get incoming connections. If you are lucky, you may find that your firewall and network HW support the uPnP protocol. If they do, this setting will allow bitcoin to configure uPnP to allow incoming connections to your node.
submitted by brianddk to brianddk [link] [comments]

Default English word list

Alright so, I took the default database from there https://skribbliohints.github.io/ and with the help of html, I extracted the words to a list separated by commas. It's useful when you want to translate those words into your native language.
Word of advice, when using google translate, do not put all words at once there, it can rapidly worsen the translation.
(And there is a last thing. Their algorithm of picking only custom words is not working really good, at least for me. Meaning that I often get duplicates, despite having a list this big and without duplicates. I'm still trying to find some solution to this, so if somebody is experiencing this as well, share the knowledge please, I will do the same.)
SOLUTION: Thanks for the reply from PepegaWR who identified the cause. I also tested it and there seems to be a custom words limit of 5000 characters. The easiest way in my opinion is to shuffle the words before each session to minimize the impact. Also thanks to the flynger who had the same idea before me :)
Finally, here it is, enjoy the scribbling ^^ :

ABBA, AC/DC, Abraham Lincoln, Adidas, Africa, Aladdin, America, Amsterdam, Android, Angelina Jolie, Angry Birds, Antarctica, Anubis, Apple, Argentina, Asia, Asterix, Atlantis, Audi, Australia, BMW, BMX, Bambi, Band-Aid, Barack Obama, Bart Simpson, Batman, Beethoven, Bible, Big Ben, Bill Gates, Bitcoin, Black Friday, Bomberman, Brazil, Bruce Lee, Bugs Bunny, Canada, Capricorn, Captain America, Cat Woman, Cerberus, Charlie Chaplin, Chewbacca, China, Chinatown, Christmas, Chrome, Chuck Norris, Colosseum, Cookie Monster, Crash Bandicoot, Creeper, Croatia, Cuba, Cupid, DNA, Daffy Duck, Darwin, Darwin Watterson, Deadpool, Dexter, Discord, Donald Duck, Donald Trump, Dora, Doritos, Dracula, Dumbo, Earth, Easter, Easter Bunny, Egypt, Eiffel tower, Einstein, Elmo, Elon Musk, Elsa, Eminem, England, Europe, Excalibur, Facebook, Family Guy, Fanta, Ferrari, Finn, Finn and Jake, Flash, Florida, France, Frankenstein, Fred Flintstone, Gandalf, Gandhi, Garfield, Germany, God, Goofy, Google, Great Wall, Greece, Green Lantern, Grinch, Gru, Gumball, Happy Meal, Harry Potter, Hawaii, Hello Kitty, Hercules, Hollywood, Home Alone, Homer Simpson, Hula Hoop, Hulk, Ikea, India, Intel, Ireland, Iron Giant, Iron Man, Israel, Italy, Jack-o-lantern, Jackie Chan, James Bond, Japan, JayZ, Jenga, Jesus Christ, Jimmy Neutron, John Cena, Johnny Bravo, KFC, Katy Perry, Kermit, Kim Jong-un, King Kong, Kirby, Kung Fu, Lady Gaga, Las Vegas, Lasagna, Lego, Leonardo DiCaprio, Leonardo da Vinci, Lion King, London, London Eye, Luigi, MTV, Madagascar, Mario, Mark Zuckerberg, Mars, McDonalds, Medusa, Mercedes, Mercury, Mexico, Michael Jackson, Mickey Mouse, Microsoft, Milky Way, Minecraft, Miniclip, Minion, Minotaur, Mona Lisa, Monday, Monster, Mont Blanc, Morgan Freeman, Morse code, Morty, Mount Everest, Mount Rushmore, Mozart, Mr. Bean, Mr. Meeseeks, Mr Bean, Mr Meeseeks, Mummy, NASCAR, Nasa, Nemo, Neptune, Netherlands, New Zealand, Nike, Nintendo Switch, North Korea, Northern Lights, Norway, Notch, Nutella, Obelix, Olaf, Oreo, Pac-Man, Paris, Patrick, Paypal, Peppa Pig, Pepsi, Phineas and Ferb, Photoshop, Picasso, Pikachu, Pink Panther, Pinocchio, Playstation, Pluto, Pokemon, Popeye, Popsicle, Porky Pig, Portugal, Poseidon, Pringles, Pumba, Reddit, Rick, Robbie Rotten, Robin Hood, Romania, Rome, Russia, Samsung, Santa, Saturn, Scooby Doo, Scotland, Segway, Sherlock Holmes, Shrek, Singapore, Skittles, Skrillex, Skype, Slinky, Solar System, Sonic, Spain, Spartacus, Spiderman, SpongeBob, Squidward, Star Wars, Statue of Liberty, Steam, Stegosaurus, Steve Jobs, Stone Age, Sudoku, Suez Canal, Superman, Susan Wojcicki, Sydney Opera House, T-rex, Tails, Tarzan, Teletubby, Terminator, Tetris, The Beatles, Thor, Titanic, Tooth Fairy, Tower Bridge, Tower of Pisa, Tweety, Twitter, UFO, USB, Uranus, Usain Bolt, Vatican, Vault boy, Velociraptor, Venus, Vin Diesel, W-LAN, Wall-e, WhatsApp, William Shakespeare, William Wallace, Winnie the Pooh, Wolverine, Wonder Woman, Xbox, Xerox, Yin and Yang, Yoda, Yoshi, Youtube, Zelda, Zeus, Zorro, Zuma, abstract, abyss, accident, accordion, ace, acid, acne, acorn, action, actor, addiction, addition, adorable, adult, advertisement, afro, afterlife, air conditioner, airbag, aircraft, airplane, airport, alarm, albatross, alcohol, alien, allergy, alley, alligator, almond, alpaca, ambulance, anaconda, anchor, angel, anglerfish, angry, animation, anime, ant, anteater, antelope, antenna, anthill, antivirus, anvil, apartment, apocalypse, applause, apple, apple pie, apple seed, apricot, aquarium, arch, archaeologist, archer, architect, aristocrat, arm, armadillo, armor, armpit, arrow, ash, assassin, assault, asteroid, astronaut, asymmetry, athlete, atom, attic, audience, autograph, avocado, axe, baboon, baby, back pain, backbone, backflip, backpack, bacon, bad, badger, bag, bagel, bagpipes, baguette, bait, bakery, baklava, balance, balcony, bald, ball, ballerina, ballet, balloon, bamboo, banana, bandage, bandana, banjo, bank, banker, bar, barbarian, barbecue, barbed wire, barber, barcode, bark, barn, barrel, bartender, base, basement, basket, basketball, bat, bathroom, bathtub, battery, battle, battleship, bayonet, bazooka, beach, beak, bean, bean bag, beanie, beanstalk, bear, bear trap, beatbox, beaver, bed, bed bug, bed sheet, bedtime, bee, beef, beer, beet, beetle, bell, bell pepper, bellow, belly, belly button, below, belt, bench, betray, bicycle, bill, billiards, bingo, binoculars, biology, birch, bird, bird bath, birthday, biscuit, bite, black, black hole, blackberry, blacksmith, blanket, bleach, blender, blimp, blind, blindfold, blizzard, blood, blowfish, blue, blueberry, blush, boar, board, boat, bobsled, bodyguard, boil, bomb, booger, book, bookmark, bookshelf, boomerang, boots, border, bottle, bottle flip, bounce, bouncer, bow, bowl, bowling, box, boy, bracelet, braces, brain, brainwash, branch, brand, bread, breakfast, breath, brick, bricklayer, bride, bridge, broadcast, broccoli, broken heart, bronze, broom, broomstick, brownie, bruise, brunette, brush, bubble, bubble gum, bucket, building, bulge, bull, bulldozer, bullet, bumper, bungee jumping, bunk bed, bunny, burglar, burp, burrito, bus, bus driver, bus stop, butcher, butler, butt cheeks, butter, butterfly, button, cab driver, cabin, cabinet, cactus, cage, cake, calendar, camel, camera, campfire, camping, can, can opener, canary, candle, canister, cannon, canyon, cap, cape, cappuccino, captain, car wash, cardboard, carnival, carnivore, carpenter, carpet, carrot, cartoon, cash, casino, cast, cat, catalog, catapult, caterpillar, catfish, cathedral, cauldron, cauliflower, cave, caveman, caviar, ceiling, ceiling fan, celebrate, celebrity, cell, cell phone, cello, cement, centaur, centipede, chain, chainsaw, chair, chalk, chameleon, champagne, champion, chandelier, charger, cheek, cheeks, cheerleader, cheese, cheeseburger, cheesecake, cheetah, chef, chemical, cherry, cherry blossom, chess, chest, chest hair, chestnut, chestplate, chew, chicken, chihuahua, child, chime, chimney, chimpanzee, chin, chinchilla, chocolate, chopsticks, church, cicada cigarette, cinema, circle, circus, clap, clarinet, classroom, claw, clay, clean, clickbait, cliff, climb, cloak, clock, cloth, clothes hanger, cloud, clover, clown, clownfish, coach, coal, coast, coast guard, coaster, coat, cobra, cockroach, cocktail, coconut, cocoon, coffee, coffee shop, coffin, coin, cola, cold, collapse, collar, color-blind, comb, comedian, comedy, comet, comfortable, comic book, commander, commercial, communism, community, compass, complete, computer, concert, condiment, cone, confused, console, continent, controller, conversation, cookie, cookie jar, copper, copy, coral, coral reef, cord, cork, corkscrew, corn, corn dog, corner, cornfield, corpse, cotton, cotton candy, country, cousin, cow, cowbell, cowboy, coyote, crab, crack, crate, crawl space, crayon, cream, credit, credit card, cricket, cringe, crocodile, croissant, crossbow, crow, crowbar, crucible, cruise, crust, crystal, cube, cuckoo, cucumber, cup, cupboard, cupcake, curry, curtain, cushion, customer, cut, cute, cyborg, cylinder, cymbal, dagger, daisy, dalmatian, dance, dandelion, dandruff, darts, dashboard, daughter, day, dead, deaf, deep, deer, defense, delivery, demon, demonstration, dent, dentist, deodorant, depressed, derp, desert, desk, desperate, dessert, detective, detonate, dew, diagonal, diagram, diamond, diaper, dice, dictionary, die, diet, dig, dinner, dinosaur, diploma, dirty, disaster, disease, dishrag, dispenser, display, diss track, distance, diva, divorce, dizzy, dock, doctor, dog, doghouse, doll, dollar, dollhouse, dolphin, dome, dominoes, donkey, door, doorknob, dots, double, dough, download, dragon, dragonfly, drain, drama, drawer, dream, dress, drink, drip, drive, driver, drool, droplet, drought, drum, drum kit, duck, duct tape, duel, dwarf, dynamite, eagle, ear, earbuds, earthquake, earwax, east, eat, echo, eclipse, eel, egg, eggplant, elbow, elder, election, electric car, electric guitar, electrician, electricity, elephant, elevator, embers, emerald, emoji, employer, emu, end, engine, engineer, equator, eraser, error, eskimo, espresso, evaporate, evening, evolution, exam, excavator, exercise, explosion, eye, eyebrow, eyelash, eye shadow, fabric, fabulous, facade, face, face paint, factory, failure, fairy, fake teeth, fall, family, farm, farmer, fashion designer, fast, fast food, fast forward, father, faucet, feather, fence, fencing, fern, festival, fidget spinner, field, figurine, filmmaker, filter, finger, fingernail, fingertip, fire alarm, fire hydrant, fire truck, fireball, firecracker, firefighter, firefly, firehouse, fireman, fireplace, fireproof, fireside, firework, fish, fish bowl, fisherman, fist fight, fitness trainer, fizz, flag, flagpole, flamethrower, flamingo, flashlight, flask, flea, flight attendant, flock, floodlight, floppy disk, florist, flower, flu, fluid, flush, flute, fly, fly swatter, flying pig, fog, foil, folder, food, forehead, forest, forest fire, fork, fort, fortress, fortune, fossil, fountain, fox, frame, freckles, freezer, fridge, fries, frog, frostbite, frosting, frown, fruit, full, full moon, funeral, funny, fur, furniture, galaxy, gang, gangster, garage, garbage, garden, gardener, garlic, gas, gas mask, gasoline, gasp, gate, gem, gender, generator, genie, gentle, gentleman, geography, germ, geyser, ghost, giant, gift, giraffe, girl, gladiator, glass, glasses, glitter, globe, gloss, glove, glow, glowstick, glue, glue stick, gnome, goal, goat, goatee, goblin, godfather, gold, gold chain, golden apple, golden egg, goldfish, golf, golf cart, good, goose, gorilla, graduation, graffiti, grandmother, grapefruit, grapes, graph, grass, grasshopper, grave, gravedigger, gravel, graveyard, gravity, greed, grenade, grid, grill, grin, groom, grumpy, guillotine, guinea pig, guitar, gumball, gummy, gummy bear, gummy worm, hacker, hair, hair roller, hairbrush, haircut, hairspray, hairy, half, halo, ham, hamburger, hammer, hammock, hamster, hand, handicap, handle, handshake, hanger, happy, harbor, hard, hard hat, harmonica, harp, harpoon, hashtag, hat, hazard, hazelnut, head, headache, headband, headboard, heading, headphones, health, heart, heat, hedgehog, heel, heist, helicopter, hell, helmet, hen, hermit, hero, hexagon, hibernate, hieroglyph, high five, high heels, high score, highway, hilarious, hill, hip hop, hippie, hippo, hitchhiker, hive, hobbit, hockey, holiday, homeless, honey, honeycomb, hoof, hook, hop, hopscotch, horizon, horn, horse, horsewhip, hose, hospital, hot, hot chocolate, hot dog, hot sauce, hotel, hourglass, house, hovercraft, hug, hummingbird, hunger, hunter, hurdle, hurt, husband, hut, hyena, hypnotize, iPad, iPhone, ice, ice cream, ice cream truck, iceberg, icicle, idea, imagination, impact, incognito, industry, infinite, injection, insect, inside, insomnia, internet, intersection, interview, invasion, invention, invisible, iron, island, ivy, jacket, jackhammer, jaguar, jail, jalapeno, janitor, jaw, jazz, jeans, jeep, jello, jelly, jellyfish, jester, jet ski, joker, journalist, journey, judge, juggle, juice, jump rope, jungle, junk food, kangaroo, karaoke, karate, katana, kazoo, kebab, keg, kendama, ketchup, kettle, key, keyboard, kidney, kindergarten, king, kiss, kitchen, kite, kitten, kiwi, knee, kneel, knife, knight, knot, knuckle, koala, kraken, label, laboratory, ladder, lady, ladybug, lake, lamb, lamp, landlord, landscape, lane, language, lantern, lap, laptop, laser, lasso, laundry, lava, lava lamp, lawn mower, lawyer, leader, leaf, leak, leash, leather, leave, leech, legs, lemon, lemonade, lemur, lens, leprechaun, lettuce, levitate, librarian, library, licorice, lid, light bulb, lighter, lighthouse, lightning, lightsaber, lily, lilypad, limbo, lime, limousine, line, link, lion, lips, lipstick, litter box, lizard, llama, loading, loaf, lobster, lock, log, logo, lollipop, loot, loser, lotion, lottery, lounge, love, low, luck, luggage, lumberjack, lung, lynx, lyrics, macaroni, machine, macho, mafia, magazine, magic, magic trick, magic wand, magician, magma, magnet, magnifier, maid, mailbox, mailman, makeup, mall, mammoth, manatee, manhole, manicure, mannequin, mansion, mantis, map, maracas, marathon, marble, margarine, marigold, market, marmalade, marmot, marshmallow, mascot, mask, massage, match, matchbox, mattress, mayonnaise, mayor, maze, meal, meat, meatball, meatloaf, mechanic, meerkat, megaphone, melon, melt, meme, mermaid, message, messy, metal, meteorite, microphone, microscope, microwave, midnight, military, milk, milkman, milkshake, mime, miner, minigolf, minivan, mint, minute, mirror, missile, model, mohawk, mold, mole, money, monk, monkey, monster, moon, moose, mop, morning, mosquito, moss, moth, mothball, mother, motherboard, motorbike, motorcycle, mountain, mouse, mousetrap, mouth, movie, mud, muffin, mug, murderer, muscle, museum, mushroom, musket, mustache, mustard, nachos, nail, nail file, nail polish, napkin, narwhal, nature, navy, neck, needle, neighbor, neighborhood, nerd, nest, network, newspaper, nickel, night, nightclub, nightmare, ninja, noob, noodle, north, nose, nose hair, nose ring, nosebleed, nostrils, notebook, notepad, nothing, notification, novel, nugget, nuke, nun, nurse, nut, nutcracker, nutmeg, nutshell, oar, observatory, ocean, octagon, octopus, office, oil, old, omelet, onion, open, opera, orange, orangutan, orbit, orca, orchestra, orchid, organ, origami, ostrich, otter, outside, oval, overweight, owl, oxygen, oyster, paddle, page, pain, paint, paintball, pajamas, palace, palette, palm, palm tree, pan, pancake, panda, panpipes, panther, pants, papaya, paper, paper bag, parachute, parade, parakeet, parents, park, parking, parrot, party, password, pasta, pastry, path, patient, patio, patriot, pause, pavement, paw, peace, peach, peacock, peanut, pear, peas, peasant, pedal, pelican, pencil, pencil case, pencil sharpener, pendulum, penguin, peninsula, penny, pensioner, pepper, pepperoni, perfume, periscope, person, pet food, pet shop, petal, pharmacist, photo frame, photograph, photographer, piano, pickaxe, pickle, picnic, pie, pig, pigeon, piggy bank, pigsty, pike, pill, pillar, pillow, pillow fight, pilot, pimple, pin, pinball, pine, pine cone, pineapple, pink, pinky, pinwheel, pipe, pirate, pirate ship, pistachio, pistol, pitchfork, pizza, plague, planet, plank, plate, platypus, player, playground, plow, plug, plumber, plunger, pocket, pogo stick, point, poison, poisonous, poke, polar bear, policeman, pollution, polo, pond, pony, ponytail, poodle, poop, poor, popcorn, pope, poppy, popular, porch, porcupine, portal, portrait, positive, postcard, poster, pot, pot of gold, potato, potion, pound, powder, prawn, pray, preach, pregnant, present, president, pretzel, price tag, priest, prince, princess, printer, prism, prison, pro, procrastination, professor, programmer, promotion, protest, provoke, prune, pub, pudding, puddle, puffin, puma, pumpkin, punishment, punk, puppet, purity, purse, puzzle, pyramid, quarter, queen, queue, quicksand, quill, quilt, quokka, raccoon, race, racecar, radar, radiation, radio, radish, raft, rail, rain, rainbow, raincoat, raindrop, rainforest, raisin, rake, ram, ramp, rapper, raspberry, rat, ravioli, razor, razorblade, read, reality, reception, receptionist, record, rectangle, recycling, red, red carpet, reeds, referee, reflection, reindeer, relationship, religion, remote, repeat, reptile, rest, restaurant, retail, revolver, rewind, rhinoceros, rib, ribbon, rice, ring, ringtone, risk, river, roadblock, robber, robin, robot, rock, rocket, rockstar, roll, roof, room, rooster, root, rose, royal, rubber, ruby, rug, ruler, run, rune, sad, saddle, safari, safe, sailboat, salad, sale, saliva, salmon, salt, saltwater, sand, sand castle, sandbox, sandstorm, sandwich, satellite, sauce, sauna, sausage, saxophone, scar, scarecrow, scarf, scary, scent, school, science, scientist, scissors, scoop, score, scream, screen, screw, scribble, scuba, sculpture, scythe, sea, sea lion, seafood, seagull, seahorse, seal, search, seashell, seasick, season, seat belt, seaweed, second, security, seed, seesaw, semicircle, sensei, server, sew, sewing machine, shadow, shake, shallow, shampoo, shape, shark, shaving cream, sheep, shelf, shell, shipwreck, shirt, shock, shoe, shoebox, shoelace, shop, shopping, shopping cart, short, shotgun, shoulder, shout, shovel, shower, shrew, shrub, shy, sick, signature, silence, silo, silver, silverware, sing, sink, sit, six pack, skateboard, skateboarder, skates, skeleton, ski, ski jump, skin, skinny, skribbl.io, skull, skunk, sky, skydiving, skyline, skyscraper, slam, sledge, sledgehammer, sleep, sleeve, slide, slime, slingshot, slippery, slope, sloth, slow, slump, smell, smile, smoke, snail, snake, sneeze, sniper, snow, snowball, snowball fight, snowboard, snowflake, snowman, soap, soccer, social media, socket, socks, soda, soil, soldier, sombrero, son, sound, soup, south, space, space suit, spaceship, spade, spaghetti, spark, sparkles, spatula, speaker, spear, spelunker, sphinx, spider, spin, spinach, spine, spiral, spit, spoiler, sponge, spool, spoon, spore, sports, spray paint, spring, sprinkler, spy, square, squid, squirrel, stab, stadium, stage, stamp, stand, stapler, star, starfish, starfruit, statue, steam, step, stereo, sting, stingray, stomach, stone, stoned, stop sign, stork, storm, stove, straw, strawberry, streamer, street, stress, strong, student, studio, study, stylus, submarine, subway, sugar, suitcase, summer, sun, sunburn, sunflower, sunglasses, sunrise, sunshade, supermarket, superpower, surface, surfboard, surgeon, survivor, sushi, swag, swamp, swan, swarm, sweat, sweater, swimming pool, swimsuit, swing, switch, sword, swordfish, symphony, table, table tennis, tablecloth, tablet, tabletop, taco, tadpole, tail, tailor, take off, talent show, tampon, tangerine, tank, tape, tarantula, target, taser, tattoo, taxi, taxi driver, tea, teacher, teapot, tear, teaspoon, teddy bear, telephone, telescope, television, temperature, tennis, tennis racket, tent, tentacle, text, thermometer, thief, thin, think, thirst, throat, throne, thug, thumb, thunder, thunderstorm, ticket, tickle, tie, tiger, time machine, timpani, tiny, tip, tiramisu, tire, tired, tissue, tissue box, toad, toast, toaster, toe, toenail, toilet, tomato, tomb, tombstone, tongue, toolbox, tooth, toothbrush, toothpaste, toothpick, top hat, torch, tornado, torpedo, tortoise, totem, toucan, touch, tourist, tow truck, towel, tower, toy, tractor, traffic, traffic light, trailer, train, translate, trap, trapdoor, trash can, traveler, treadmill, treasure, tree, treehouse, trend, triangle, trick shot, tricycle, trigger, triplets, tripod, trombone, trophy, tropical, truck, truck driver, trumpet, tuba, tug, tumor, tuna, tunnel, turd, turkey, turnip, turtle, tuxedo, twig, type, udder, ukulele, umbrella, uncle, underground, underweight, undo, unibrow, unicorn, unicycle, uniform, universe, upgrade, vacation, vaccine, vacuum, valley, vampire, vanilla, vanish, vault, vegetable, vegetarian, vein, vent, vertical, veterinarian, victim, victory, video, video game, village, villain, vine, vinegar, viola, violence, violin, virtual reality, virus, vise, vision, vitamin, vlogger, vodka, volcano, volleyball, volume, vomit, voodoo, vortex, vote, vulture, vuvuzela, waffle, waist, waiter, wake up, walk, wall, wallpaper, walnut, walrus, warehouse, warm, wart, wasp, watch, water, water cycle, water gun, waterfall, wave, wax, weak, wealth, weapon, weasel, weather, web, website, wedding, welder, well, werewolf, west, western, whale, wheel, wheelbarrow, whisk, whisper, whistle, white, wife, wig, wiggle, willow, wind, windmill, window, windshield, wine, wine glass, wing, wingnut, winner, winter, wire, wireless, witch, witness, wizard, wolf, wonderland, woodpecker, wool, work, workplace, world, worm, wound, wrapping, wreath, wrench, wrestler, wrestling, wrinkle, wrist, writer, x-ray, xylophone, yacht, yardstick, yawn, yearbook, yellow, yeti, yo-yo, yogurt, yolk, young, youtuber, zebra, zeppelin, zigzag, zipline, zipper, zombie, zoo, zoom,
submitted by StaroSVK to skribbl [link] [comments]

Bitcoin API to Easily Create Your Bitcoin Wallet - Tokenview

What is a Bitcoin Wallet?

Simply put, a Bitcoin wallet is actually a 'management tool for private keys, addresses, and blockchain data.' The private key is generated from a random number, and the address is calculated from the private key. The bitcoins received and transferred from the wallet (address) must also be listed. Of course, the wallet must also support collection and payment. In other words, all of these have to be done through tools, and these types of tools are collectively referred to as 'bitcoin wallets.' ViewToken can not only predict the market of virtual currencies, but also help users earn more digital assets through financial management, and can directly use the ViewToken flash swap function, eliminating the hassle of exchange on exchanges. At present, digital currency wallets have different functions.
According to the maintenance method of blockchain data, we can divide wallets into:
According to the hardware equipment used, we can divide the wallet into:

Bitcoin Wallet development and Address Management

In Bitcoin application development, how to query the details of a Bitcoin address and how to query all transactions that occurred on the Bitcoin address? How to query all transactions that occurred in a specified Bitcoin address? How to manage Bitcoin addresses? Here is the solution:
Due to the data storage structure of Bitcoin, it is impossible to directly use the original API of Bitcoin to query historical transaction data of a specified address. Therefore, the most simple first solution is to store each transaction data on the Bitcoin blockchain in its own database, and then index the transaction address information (such as Scriptpubkey, pubkey, or the address itself), so that You can query the database freely and efficiently.
The previous method requires users to be able to parse the Bitcoin blockchain data and build a database environment by themselves, but it is more cumbersome and requires certain technical requirements. Many users basically do not use this method. Third-party API data services can solve this problem. Users can directly access the Tokenview blockchain API data service page, choose the appropriate API interface according to their own needs, and easily develop Bitcoin wallets and manage wallet addresses.
Users can choose a third solution to obtain Bitcoin address information and management: Bitcoin node implementation software. Such as btcd, this method uses the Bitcoin node software implemented in the go language when starting btcd. Just use the --addrindex flag to automatically create a Bitcoin address index.
submitted by Doris333 to u/Doris333 [link] [comments]

Recap of Chromia AMA with the CEO of Chromia, @henrik_hjelte on BithumbGlobal telegram community dated 14.04.2020.

The AMA was moderated by u/Sidonpee.
Sidonpee
Let’s start with the introduction question:
u/henrik_hjelte Can you introduce yourself to the community? What is your background?
Henrik Hjelte
I’m the CEO of ChromaWay, the company that started the Chromia project. My background is 30+ years as a developer (got payed first when I was 15), then studied Business and other things (politics and philosophy). Worked as Finance and IT consultant. THen wanted to be an entrepreneur. started a “web 2.0” startup about a free-speech internet. Hired our current CTO as a developer. THen joined his colored-coins project, the first token protocol ie the start of blockchain in 2012.
Sorry. I’m now 50 years old, the math didn’t add up. That is why I’m the CEO and not CFO.
Sidonpee
Q1. What is Chromia? Can you tell us the technology behind it and the features that makes it unique?
Henrik Hjelte
Chromia is a new public blockchain based on the idea of integrating traditional databases, “Relational databases” with blockchain security. In the normal world outside blockchain, there is one technology that is in 100% of all enterprises and powers almost all webpages. It build Facebook, SAP, banks, blogging platforms. It is the relational database, or SQL database. Has been used for 30+ years and is still dominant with 85% market share. Why are people using it (NoSQL has been around for 15+ years)?
Because it is the best way of managing data known to mankind. Now what is blockchani? It is a way to manage data that is shared. So if you agree that blockchain is about managing data, a relational database should be an obvious technology. Chromia is a general purpose blockchain with full smart contract capabilities, just that it is a lot easier to code, even complex applications. You code with an easy to learn new programming language that combines the power of SQL and “normal languages” but makes it secure in a blockchain context. Up to 1/10 the code-lines vs other blockchains.
Sidonpee
Q2. I often see Chromia and ChromaWay being used interchangeably, what is the relationship between the two?
Henrik Hjelte
The idea for Chromia and parts of the codebase originated from the company ChromaWay. It is actually one of the first blockchain companies, we had a project for tokens before ethereum called the “colored coins” project that led to us starting a company with a name take from the greek word for color. In 2015 we did what is now called stable-coin, EURO payments based on tokens on a public blockchain (tokens on bitcoin). It was for a bank LHV in Estonia. When we need to quickly find information, we could not search the blockchain and instead started to dump everything to a relational database, and then the idea started to grow to build a blockchain around this. So we did a private blockchain, intended for usecases in land-registration, banking and more. And then came up with the idea of doing a public blockchain for it.
ChromaWay is the company that ideated Chromia and provided the first open source code for it. The Chromia pre-sale of tokens is now funding the development of Chromia, which is done by ChromaWay. When Chromia is released as a decentralized network, it will not be governed or run by ChromaWay. Of course we know it has to be decentralized, we understand the virtues of decentralization since 2012 when our CTO did the worlds first code for tokens, then started an open-source project which even inspired Vitalik (who soon quit and did his own thing). ChromaWay as a company will take a role as providing optional support and maintenance of Chromia projects (open for competition by other players).
Sidonpee
Q3. What’s the usefulness of $CHR token in Chromia ecosystem?
Henrik Hjelte
CHR can be used to pay for running dapps (normally by the developer of the dapp, not users). It can also be used as a mean of exchange between dapps, and to provide collateral/stake for providers (the ones running the blockchain), incentivizing good behaviour.
Sidonpee
Q4. What are the major milestones Chromia has achieved so far & what are your plans for 2020?
Henrik Hjelte
We have released Rell, the new programming language that is needed, and supported tooling (online Development Environment, downloadable IDE, documentation). We have release the first testnet in december, and at the same time another company 4irelabs has done the first dapp running on testnet. They could take our old code (done as a private blockchain), learn our new language Rell and port it to Chromia. That project is the Green Assets Wallet, green bond environmental impact reporting, run by a non-profit and with banks and institutions as users.
Plans for 2020 is to both release a series of dApps to showcase how fantastic Chromia is, as well as continue to develop the platform. And when it is secure and good enough, we will release mainnet.
Dapps are now being made by us as well as others. We do a decentralized social network framework call chromunity, now release to testnet. If is really cool, users can vote over moderators, and in the future users might even govern the complete application, how it can be updated. This is a great showcase for Chromia and why we use the slogan Power to the Public.
Games coming are….
  1. Mines of Dalarnia (by Workinman Interactive). An action game in a mine with blockchain rental of plots and stuff.
  2. Krystopia 2, novas journey. A puzzle game done by Antler Interactive.
  3. An indie game (not done by us so I don’t know how much I shoiul;d menton), but: it is a strategy game with FULL-LOGIC ON BLOCKHCHAIN yes ubercool that is why it is in caps
  4. A secret demo-project that we do together with Antler to showcase the technical potential of Chromia platform.
More comin in 2020: Other dapps from other companies, one in impact-tech
Games is a great way to show scalability and features BTW.
I didn’t mention that Chromia is very scalable (everyone says that). But it is true, and with no tradeoff vs decentralization
well, but I can also see enterprise projects going into more of public blockchain direction and hybrid, and there I think Chromia can really shine
Sidonpee
Q5. Revenue and adoption are the main points of all projects, can you tell us your Business model and how you generate revenue?
Henrik Hjelte
Chromia itself is a public network with no intrinsic business model, but participants in the network has. For example Providers make money from supplying quality hardware running dapps and the core software, dapp developers have individual business models.
I already told about about ChromaWay/Chromia, but ChromaWay the company can provide support/maintenance and various services and add-ons for Chromia. It is very similar to how normal open-source vendors make money.
Still up to competition from others, and without control over the Chromia network. We need it to be independent, otherwise it has no value.
So it is sound business to have it decentralized as well, who would care otherwise?
Sidonpee
Q6. Regarding Chromia’s blockchain game (Minesofdalarnia), I’m quite sure that vast majority of game lovers would be anticipating for it release, could you please share with us the likely date it will be released?
Henrik Hjelte
Yes I can
We have made very good progress recently, and I can happily share that MoD is planned to be released now in Q2.
Anastasia
Meanwhile you can check the Mines of Dalarnia Social Media page for recent updates on the game https://twitter.com/Chromia_Studios . We publish development updates there often.
You can also sign-up for early access on https://www.minesofdalarnia.com 😉
Sidonpee
Q7. Recently Chromia welcome Malcolm Lerider who was formally a Senior R&D Manager for Neo Blockchain as its new team and family member. When he was with Neo, he worked together with the community and was able to build the project from a top 50-something market cap project to a top 5 market cap project. Should we be expecting a replica of this at Chromia in the nearest future?
Henrik Hjelte
Yes. we are very excited to have Malcolm on-board, he is very knowledgeable in the area, and his expertise will definitely help with achieving that. Malcolm recently published an article where he introduced himself as a new member of Chromia. You can read it over here, if you haven’t already: https://medium.com/@MalcolmLeridei-am-joining-team-chromia-b25d527b5b6f
Sidonpee
Q8. Green Asset Wallet is absolutely an amazing starter in the Chromia blockchain! I would like to hear how you guys see the future business development possibilities in the next /6/12 months? Are there specific business areas, geographical locations, which you want to focus on most?
Henrik Hjelte
Thank you, yes, it is nice to have a project that is enterprise, and green too as the first one.
We are working both to reach out but also support inbound requests for projects, I shared some above.
Sometimes with business development, ChromaWAy might find a customeprospect but we don’t know where it will end. We think however, and Gartner too, that enterprise blockchain is gradually looking more at public blockchain projects.
I think DeFI, tokenization of assets and things like that is interesting.
Also, hopefully someone will be inspired by our solution to a free, open, user-governed decentralized social web, what we are now showing with Chromunity. Jack Dorsey, are you listening?
We don’t have a particular geographical focus though, and really it is a generic platform use-case agnostic.
We use games to show potential and scalability, but who knows maybe other applications will be more. It is not only up to us.
Sidonpee
Q9. Who are Chromia’s strategic investors and partners? What criteria/ process do you follow in evaluating your partnership deal with them?
Henrik Hjelte
We have some strategic investors and partners that have helped us during the way, I think maybe I should not mention them here with the risk of forgetting some of them, and I have no time to check if we should mention them, We (and the partner) look at how we can help each other on a case by case basis. There is no simple scorecard that we can follow.
We try to avoid vanity partnership deals with no real meaning
Sidonpee
Q10. Why did Chromia develop a new language called Rell (Relational language) for dapp
programming?
Is the development of this new language really necessary?
If yes, what are some of its unique features that cannot be found in other existing languages/environments?
Henrik Hjelte
Yes it was necessary. We need the features of relational alegbra. It is is a mathematical basis, very similar to logic, that has only had basically one implementation (SQL). But SQL was not secure enough and lacked features that can be used in a shared context like a blockchain. Everything needs to be secure. Also we wanted to add blockchain features, and make it look more like “normal programming”. Now some of the readers might ask? Can’t you do this on the EVM? No. Ethereum does simply not have anything similar to a relational database, and it would be technically infeasible.
Some others may ask? How can you compete with the EVM /pet-project that have soo many developers etc…?
My answer is : we are building on top of a virtual machine called Postgresql. Check how much time, optimization and money has been spent on that virtual machine…
I think it is 20 years or more of development time, maybe more.
Static typing is one feature we add that SQL doesn’t have (you can detect bugs at compile time)
Yusuf
What have been the major obstacle Chromia has faced in the past years while developing its idea?
Whats the benefits for developers at Chromia? Why should we use Chromia instead of your competitors?
Henrik Hjelte
Obstacle: Technology/software developement is hard sometimes, difficult to predict when things are ready.
Major benefits for developers: A LOT EASIER to code COMPLEX applications. I’m serious. If you are frustrated with blockchain development, take a look at the ease of use of Rell/Chromia
LA LA
DeFi is projected to buzz up in 2020 and is on everybody lips, what ROLES does Chromia play in the innovativeness and future of DeFi and how does it spearhead adoption of DeFi using blockchain solution?
Henrik Hjelte
Finance would be almost unthinkable without relational databases, the power core banking and more. An exchange is a table of bid and ask, and you match them. This is very easy to do with our tech.
Sujit
If any Dapp is created on Chromia Blockchain! Then is there any Gas fees charged by Chromia? Whats the concept of fees for Dapps on Chromia Blockchain?
Henrik Hjelte
No gas per user fee. The application pays for hosting, like a cloud. Normally the developer, unless the developer hands over the governenace of the application to someone else (maybe the users).
Sujit
If any Dapp is created on Chromia Blockchain! Then are there any Gas fees charged by Chromia? Whats the concept of fees for Dapps on Chromia Blockchain?
Henrik Hjelte
No gas per user fee. The application pays for hosting, like a cloud. Normally the developer, unless the developer hands over the governenace of the application to someone else (maybe the users).
Mayowa
Most blockchain projects have donated to COVID-19, but no news from Chromia. How will you contribute to fight COVID-19?
Henrik Hjelte
I had to answr this: I spent my free weekend time on a covid-19 hackathon the other week to do a solution to share medical equipment across countries. It is on our facebook I think u/anastasiazudina maybe you can share
Anastasia
We want to do our part for the ongoing covid19 crisis. Therefore, we were participating in the critical initiative HackTheCrisis. During the virtual hackathon, we tried to find good solutions for the new unique challenges that we now as a society are facing. https://www.facebook.com/chromaway/posts/2171037456376083
Mayowa
Chromia creates a new lightweight programming language called RELL. How is this different and better for programmers than other popular language like Solidity, C++ and Java?
Henrik Hjelte
When you think about a large Java project done for say a bank. Ask the developers what OTHER thing they use? DO they ONLY use Java and store files on a server? Or do they also use a database. You will find that in 99.9% of cases they ALSO use a relational database. No one would EVER think about doing a solution to manage data with ONLY Java, C++ or whatever.
Alejandro Urich
For the development of the Dapps, do you only support Rell? Is it possible to program in another language that works with Chromia?
Henrik Hjelte
Because we require both relational database properties and more security than SQL, currently Rell is the only choice. It is really easy to learn, and in all cases if we allowed a “normal” language it would miss the feautures of relational databases.
zafer metin
Mr Henrik What are the advantages of Postchain used for Chromia? How is a consortium provided to database management with distributed control?
Anastasia
Thank you for your interest in Postchain uses! We have an article written what answers exactly those questions: https://blog.chromia.com/postchain-for-the-public-scaling-relational-blockchain/
Stay At Home
As I know providers will be chosen by Chromaway, so how is it decentralized due to choice is totally in Chromaway?
Henrik Hjelte
Initial providers. We will migrate to a model where ChromaWAy has no more say than anyone else. But we need to bootstrap and start. Better to choose good initial providers.
David Prince
What is your long-term vision about the industry which Chromia is working at? Are you afraid someday there will be another Project with more innovative technology can replace Chromia?
Henrik Hjelte
Well. Blockchain is about managing data (in a shared context). I’m repeating myself but the market leading (85%) for 30+ years slution to manage data is a relational database. We are now the only relational database + blockchain. Who knows, maybe some better way to manage data will be invented? But even NoSQL who has been around and bark like a little dog has after a decade or more time only 15% market share. I think our tech will stand the mark of time.
Sidonpee
The AMA session with the Chronia team has finally come to an end.
We’re greatly astonished having a well-articulated AMA session with Chronia’s CEO Henrik Hjelte u/henrik_hjelte and community/social media manager team Anastasia u/anastasiazudina in the community👨‍💻👌
Also, we are indeed overwhelmed by all our esteemed community members, for your support and enthusiasm for the project.
For more information and to be part of the project, you may join the Chronia’s community here via:
https://t.me/hellochromia
Telegram
(https://t.me/hellochromia)Chromia — Official English Group
The official Chromia community group by ChromaWay. Where dapps thrive!
submitted by dam30 to Teamchromia [link] [comments]

Groestlcoin 6th Anniversary Release

Introduction

Dear Groestlers, it goes without saying that 2020 has been a difficult time for millions of people worldwide. The groestlcoin team would like to take this opportunity to wish everyone our best to everyone coping with the direct and indirect effects of COVID-19. Let it bring out the best in us all and show that collectively, we can conquer anything.
The centralised banks and our national governments are facing unprecedented times with interest rates worldwide dropping to record lows in places. Rest assured that this can only strengthen the fundamentals of all decentralised cryptocurrencies and the vision that was seeded with Satoshi's Bitcoin whitepaper over 10 years ago. Despite everything that has been thrown at us this year, the show must go on and the team will still progress and advance to continue the momentum that we have developed over the past 6 years.
In addition to this, we'd like to remind you all that this is Groestlcoin's 6th Birthday release! In terms of price there have been some crazy highs and lows over the years (with highs of around $2.60 and lows of $0.000077!), but in terms of value– Groestlcoin just keeps getting more valuable! In these uncertain times, one thing remains clear – Groestlcoin will keep going and keep innovating regardless. On with what has been worked on and completed over the past few months.

UPDATED - Groestlcoin Core 2.18.2

This is a major release of Groestlcoin Core with many protocol level improvements and code optimizations, featuring the technical equivalent of Bitcoin v0.18.2 but with Groestlcoin-specific patches. On a general level, most of what is new is a new 'Groestlcoin-wallet' tool which is now distributed alongside Groestlcoin Core's other executables.
NOTE: The 'Account' API has been removed from this version which was typically used in some tip bots. Please ensure you check the release notes from 2.17.2 for details on replacing this functionality.

How to Upgrade?

Windows
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer.
OSX
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), run the dmg and drag Groestlcoin Core to Applications.
Ubuntu
http://groestlcoin.org/forum/index.php?topic=441.0

Other Linux

http://groestlcoin.org/forum/index.php?topic=97.0

Download

Download the Windows Installer (64 bit) here
Download the Windows Installer (32 bit) here
Download the Windows binaries (64 bit) here
Download the Windows binaries (32 bit) here
Download the OSX Installer here
Download the OSX binaries here
Download the Linux binaries (64 bit) here
Download the Linux binaries (32 bit) here
Download the ARM Linux binaries (64 bit) here
Download the ARM Linux binaries (32 bit) here

Source

ALL NEW - Groestlcoin Moonshine iOS/Android Wallet

Built with React Native, Moonshine utilizes Electrum-GRS's JSON-RPC methods to interact with the Groestlcoin network.
GRS Moonshine's intended use is as a hot wallet. Meaning, your keys are only as safe as the device you install this wallet on. As with any hot wallet, please ensure that you keep only a small, responsible amount of Groestlcoin on it at any given time.

Features

Download

iOS
Android

Source

ALL NEW! – HODL GRS Android Wallet

HODL GRS connects directly to the Groestlcoin network using SPV mode and doesn't rely on servers that can be hacked or disabled.
HODL GRS utilizes AES hardware encryption, app sandboxing, and the latest security features to protect users from malware, browser security holes, and even physical theft. Private keys are stored only in the secure enclave of the user's phone, inaccessible to anyone other than the user.
Simplicity and ease-of-use is the core design principle of HODL GRS. A simple recovery phrase (which we call a Backup Recovery Key) is all that is needed to restore the user's wallet if they ever lose or replace their device. HODL GRS is deterministic, which means the user's balance and transaction history can be recovered just from the backup recovery key.

Features

Download

Main Release (Main Net)
Testnet Release

Source

ALL NEW! – GroestlcoinSeed Savior

Groestlcoin Seed Savior is a tool for recovering BIP39 seed phrases.
This tool is meant to help users with recovering a slightly incorrect Groestlcoin mnemonic phrase (AKA backup or seed). You can enter an existing BIP39 mnemonic and get derived addresses in various formats.
To find out if one of the suggested addresses is the right one, you can click on the suggested address to check the address' transaction history on a block explorer.

Features

Live Version (Not Recommended)

https://www.groestlcoin.org/recovery/

Download

https://github.com/Groestlcoin/mnemonic-recovery/archive/master.zip

Source

ALL NEW! – Vanity Search Vanity Address Generator

NOTE: NVidia GPU or any CPU only. AMD graphics cards will not work with this address generator.
VanitySearch is a command-line Segwit-capable vanity Groestlcoin address generator. Add unique flair when you tell people to send Groestlcoin. Alternatively, VanitySearch can be used to generate random addresses offline.
If you're tired of the random, cryptic addresses generated by regular groestlcoin clients, then VanitySearch is the right choice for you to create a more personalized address.
VanitySearch is a groestlcoin address prefix finder. If you want to generate safe private keys, use the -s option to enter your passphrase which will be used for generating a base key as for BIP38 standard (VanitySearch.exe -s "My PassPhrase" FXPref). You can also use VanitySearch.exe -ps "My PassPhrase" which will add a crypto secure seed to your passphrase.
VanitySearch may not compute a good grid size for your GPU, so try different values using -g option in order to get the best performances. If you want to use GPUs and CPUs together, you may have best performances by keeping one CPU core for handling GPU(s)/CPU exchanges (use -t option to set the number of CPU threads).

Features

Usage

https://github.com/Groestlcoin/VanitySearch#usage

Download

Source

ALL NEW! – Groestlcoin EasyVanity 2020

Groestlcoin EasyVanity 2020 is a windows app built from the ground-up and makes it easier than ever before to create your very own bespoke bech32 address(es) when whilst not connected to the internet.
If you're tired of the random, cryptic bech32 addresses generated by regular Groestlcoin clients, then Groestlcoin EasyVanity2020 is the right choice for you to create a more personalised bech32 address. This 2020 version uses the new VanitySearch to generate not only legacy addresses (F prefix) but also Bech32 addresses (grs1 prefix).

Features

Download

Source

Remastered! – Groestlcoin WPF Desktop Wallet (v2.19.0.18)

Groestlcoin WPF is an alternative full node client with optional lightweight 'thin-client' mode based on WPF. Windows Presentation Foundation (WPF) is one of Microsoft's latest approaches to a GUI framework, used with the .NET framework. Its main advantages over the original Groestlcoin client include support for exporting blockchain.dat and including a lite wallet mode.
This wallet was previously deprecated but has been brought back to life with modern standards.

Features

Remastered Improvements

Download

Source

ALL NEW! – BIP39 Key Tool

Groestlcoin BIP39 Key Tool is a GUI interface for generating Groestlcoin public and private keys. It is a standalone tool which can be used offline.

Features

Download

Windows
Linux :
 pip3 install -r requirements.txt python3 bip39\_gui.py 

Source

ALL NEW! – Electrum Personal Server

Groestlcoin Electrum Personal Server aims to make using Electrum Groestlcoin wallet more secure and more private. It makes it easy to connect your Electrum-GRS wallet to your own full node.
It is an implementation of the Electrum-grs server protocol which fulfils the specific need of using the Electrum-grs wallet backed by a full node, but without the heavyweight server backend, for a single user. It allows the user to benefit from all Groestlcoin Core's resource-saving features like pruning, blocks only and disabled txindex. All Electrum-GRS's feature-richness like hardware wallet integration, multi-signature wallets, offline signing, seed recovery phrases, coin control and so on can still be used, but connected only to the user's own full node.
Full node wallets are important in Groestlcoin because they are a big part of what makes the system be trust-less. No longer do people have to trust a financial institution like a bank or PayPal, they can run software on their own computers. If Groestlcoin is digital gold, then a full node wallet is your own personal goldsmith who checks for you that received payments are genuine.
Full node wallets are also important for privacy. Using Electrum-GRS under default configuration requires it to send (hashes of) all your Groestlcoin addresses to some server. That server can then easily spy on your transactions. Full node wallets like Groestlcoin Electrum Personal Server would download the entire blockchain and scan it for the user's own addresses, and therefore don't reveal to anyone else which Groestlcoin addresses they are interested in.
Groestlcoin Electrum Personal Server can also broadcast transactions through Tor which improves privacy by resisting traffic analysis for broadcasted transactions which can link the IP address of the user to the transaction. If enabled this would happen transparently whenever the user simply clicks "Send" on a transaction in Electrum-grs wallet.
Note: Currently Groestlcoin Electrum Personal Server can only accept one connection at a time.

Features

Download

Windows
Linux / OSX (Instructions)

Source

UPDATED – Android Wallet 7.38.1 - Main Net + Test Net

The app allows you to send and receive Groestlcoin on your device using QR codes and URI links.
When using this app, please back up your wallet and email them to yourself! This will save your wallet in a password protected file. Then your coins can be retrieved even if you lose your phone.

Changes

Download

Main Net
Main Net (FDroid)
Test Net

Source

UPDATED – Groestlcoin Sentinel 3.5.06 (Android)

Groestlcoin Sentinel is a great solution for anyone who wants the convenience and utility of a hot wallet for receiving payments directly into their cold storage (or hardware wallets).
Sentinel accepts XPUB's, YPUB'S, ZPUB's and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's, YPUB's and ZPUB's) deterministically generate addresses for that wallet.
Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.

Changes

Download

Source

UPDATED – P2Pool Test Net

Changes

Download

Pre-Hosted Testnet P2Pool is available via http://testp2pool.groestlcoin.org:21330/static/

Source

submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

⟳ 870 apps added, 78 updated at f-droid.org

Notice: this update is spurious, and the issue is being looked at.
⟳ f-droid.org from Wed, 26 Feb 2020 20:21:50 GMT updated on Sun, 01 Mar 2020 05:23:29 GMT contains 2962 apps.
Added (870)
Updated (78)
2020-03-01T05:53:18Z
submitted by BrainstormBot to FDroidUpdates [link] [comments]

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