Digital Currency

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Digital Currency is the value of an exchange stored, transacted or fulfilled wholly by electronic means. This means that though a Digital Currency service may connect to a bank account (savings-based transaction) or credit card (debt-based transaction) to perform a transaction, it is not the credit card or bank account itself.


A Blockchain​ is a public ledger that records a set of data transactions, eliminating the need for a centralized third party or authority to store or process said transactions. In the case of BitCoin (which was the project that originated this algorithmic approach to transaction processing), the Blockchain is a full history of banking transactions. Blocks, or the most recent transactions being recorded, are like an individual banking statement. Each completed block is added to the chain, and another block begins, forming the constantly growing Blockchain.

BitCoin users dictate and verify transactions each time a person pays someone else for goods or services. The completed transaction is publicly recorded into the Blockchain, where it’s verified by other Bitcoin users. Blockchain is seen as BitCoin’s main technological innovation, since it provides proof of each transaction. It is used to review transaction histories to determine how much value a particular address owned at any given time. Each computer that’s connected to the BitCoin network receives a copy of the Blockchain upon joining the network.

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FACT SHEET: President Biden to Sign Executive Order on Ensuring Responsible Development of Digital Assets:

Ethereum SmartContracts

Ethereum is an open-source, public, blockchain-based distributed computing platform featuring smart contract (scripting) functionality. It provides a decentralized Turing-complete virtual machine, the Ethereum Virtual Machine (EVM), which can execute scripts using an international network of public nodes. Ethereum also provides a value token called "ether", which can be transferred between participants and is used to compensate participant nodes for computations performed. Gas, an internal transaction pricing mechanism, is used to prevent spam on the network and allocate resources proportionally to the incentive offered by the request

  • wikipedia: Ethereum
  • Ethereum: (leading open source BlockChain Platform implementation for use in applications other than just cryptocurrency)
  • Web3J - Ethereum lib (JAVA): (lightweight, reactive, type safe Java and Android library for integrating with nodes on Ethereum blockchains)

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OpenBazaar is essentially a re-branding of DarkMarket, which was confirmed to be a front to catch cyber-criminals, run by the FBI.[56][57][58]


Audius is a digital streaming service that connects fans directly with artists and exclusive new music. It does this by being fully decentralized: Audius is owned and run by a vibrant, open-source community of artists, fans, and developers from around the world. Audius gives artists the power to share "never-before-heard" music and monetize streams directly. Developers can build their own apps on top of Audius, giving them access to one of the most unique audio catalogs in existence.

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  • DAML -- Build full-stack, distributed applications for DLT, Blockchain, or databases in days:



Proof of Work


Proof of Stake


Proof of Space

Proof of Authority


Non-Fungible Tokens (NFTs) are guaranteed unique identifiers that can be used to prove ownership of an "authentic" original digital asset (such as artwork, digital image, music track/album, video clip, TV show, movie, etc).

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Cryptocurrencies & E-Payments

Cryptocurrencies are electronic and/or digitally held currencies that implement a blockchain or similar P2P verification/ledger scheme to accomplish decentralization of ownership of the money supply and system for transferring, storing & measuring wealth (although not all crytocurrencies are necessarily decentralized).

Electronic Payments (commonly abbreviated E-Payments) are simply transacting online or on a mobile device with existing major national & global currencies (such as the US Dollar, Canadian dollar, European Union euro, Japanese yen, Chinese renminbi, etc).




Bitcoin is a peer-to-peer digital currency. Peer-to-peer (P2P) means that there is no central authority to issue new money or keep track of transactions. Instead, these tasks are managed collectively by the nodes of the network. It is referred to as the first mildly successful cryptocurrency.


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FAUCETS (shut down ever since cost of giving way BitCoin became the same as giving away your home/car/future)

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OpenTransactions is a solid, easy-to-use, financial cryptography and digital cash library. The library includes an Open Source operational API, Client and Server for processing untraceable digital money transactions.

OS Currency


Alternatives to the BitCoin as a digital cryptocurrency are commonly abbreviated as AltCoins.

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Stablecoins aim to solve the volatility problem where prices change constantly and often drastically, by tying the cryptocurrency to some underlying assets (such as fiat money of a particular currency, gold, silver, energy holdings, real estate, etc). Whereas BitCoin has seen changes in price of more than 20% within a single trading day, the most successful "stablecoins" have less than 2.5% change in value per week (if not per quarter or fiscal year).


Adult AltCoins

Some AltCoins exist purely for paying for access to Adult materials (i.e. pornography & related games, virtual reality experiences, etc).



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Interac e-Transfer


For more, see section: PayPal


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Central Bank Digital Currency




Interest-based cryptocurrency holdings services

P2P trading


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CrytoCurrency Exchange

NFT exchange





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External Links


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  1. Getting started on the IBM Blockchain Platform Starter Plan: 2018 Follow up blog&cm_mmca1=000026VG&cm_mmca2=10007330
  2. IBM & Walmart Launching Blockchain Food Safety Alliance In China With Fortune 500's
  3. Walmart and 9 Food Giants Team Up on IBM Blockchain Plans:
  4. Amazon Could Be the Bill Belichick of Blockchain Technology:
  5. Why Aren't Companies Like Facebook, Amazon, And Google Doing More With Blockchain Technology?:
  6. What is the "Blockchain technology" and what are its real-world applications?: Pt.1 | Pt.2 | [ Pt.3] | [ Pt.4] | [ Pt.5] | [ Pt.6]
  7. A Brief History of Blockchain:
  8. The Truth About Blockchain:
  9. Why Blockchains could change the world:
  10. INNOVATE 2016 - How the blockchain will clean up American politics:
  11. What Blockchain Can’t Do:
  12. Will Blockchain Put Consumers In Charge Of Ad And Marketing Industry?:
  13. Why Blockchain Needs Design:
  14. Concerns about BlockChain technology (from a leading developer on dzone & StackOVerflow):
  15. Blockchain - It's All Greek To Me:
  16. Building a Blockchain -- What, How, and Why:
  17. Apple Patent Filing Hints at Blockchain Use:
  18. Apple and Blockchain -- Together at Last?: ttps://
  19. Is Apple Planning to Use Blockchain?:
  20. Google is eyeing Blockchain tech:
  21. Blockchain – What Is It Good For? (SLIDES):
  22. It's Settled -- Here's The Best Case For Blockchain In Digital Media Buying:
  23. Blockchain Graveyard: (Starting a BTC/ETH company? learn some lessons from top 5 root causes: Server Breach, App Vulnerability, Cloud Account Takeover, Protocol weakness, Insider)
  24. Creating Your First Blockchain with Java -- Part 1 - BlockChain:
  25. Creating Your First Blockchain with Java -- Part 2  -  Transactions:
  26. Java Blockchain tutorial -- Part 1 -  Block validation:
  27. Java Blockchain tutorial -- Part 2  - Mining and Consensuses:
  28. MIT Professor Asserts Blockchain Technology Is Not as Secure as Claimed:
  29. AP Offers Financial, Sports Data Via Blockchain:
  30. Blockchain Explained in 50 Lines of Code:
  31. 8 best practices for Blockchain security:
  32. Uses for Blockchain in the Real World: for Blockchain in the Real World:
  33. 4 Real World Blockchain Applications:
  34. 50+ Examples of How Blockchains are Taking Over the World:
  35. (Mis)use of Blockchain in Digital Media:
  36. Can Blockchain Fix the Problems of Digital Advertising Industry?:
  37. Blockchain gets real for the "Electronics Supply Chain":
  38. REDDIT - Ethereum discussions:
  39. Why digital advertising is experimenting with blockchain:
  40. Business Giants to Announce Creation of a Computing System Based on Ethereum:
  41. Understanding Ethereum — The Most Valid Criticism:
  42. Dashbid - PreVue: (Advertising compensation network via BlockChain)
  43. Introduction to Blockchain With Java Using Ethereum, Web3j, and Spring Boot:
  44. Simplified Blockchain -- Part 1 - Theory:
  45. Simplified Blockchain -- Part 2 - Ethereum Example With Java Client:
  46. Building on Ethereum -- Part 3 - Set Up and Test: (SmartContracts in a React web app example)
  47. Ethereum Staking Will Drop Power Consumption by 99%:
  48. Ethereum Drops 9%. Is This a Buying Opportunity?:
  49. Top 3 Prediction Bitcoin, Ethereum, Ripple -- BTC may drop to $34,000, taking the rest of the market with it:
  50. Bitcoin Crash And Ethereum Bubble. What’s Next?:
  51. Ethereum Drop:
  52. Lark Davis Says Ethereum Price Could Drop to $2,600:
  53. Ethereum staking will drop its power consumption by 99% (moving from "proof-of-work" to "proof-of-stake"):
  54. Ethereum Price Prediction:
  55. Ethereum Miner Revenue Hits New Record in May Despite Coin Volatility:
  56. Cybercrime Supersite ‘DarkMarket’ Was FBI Sting, Documents Confirm:
  57. Dark markets may be more harmful than high-frequency trading:
  58. Silk Road successor DarkMarket rebrands as OpenBazaar:
  59. Audius dashboard: (key facts about adoption & usage of Audius)
  60. And the First Streaming Service to Partner With TikTok Is… blockchain-based Audius:
  61. How to Build ERC-721 NFTs with IPFS -- using Open Zeppelin, Truffle & Pinata:
  62. Building Powerful SmartContracts Using DAML:
  63. Proof of Stake (POS) .vs. Proof of Work (POW):
  64. Staking Guide | Proof of Stake coins:
  65. Everything We’re Reading about NFTs:
  66. What is an NFT? Non-fungible tokens explained:
  67. What Are NFT Stocks? Your Guide To Non-Fungible Tokens:
  68. What is an NFT? The trendy blockchain technology explained:
  69. How NFTs are fueling a digital art boom:
  70. Crypto user offers $100K for Elon Musk's tweet on proposed NFT :
  71. Snoop Dogg Releases His First NFT Collection 'A Journey With The Dogg' On Crypto.Com:
  72. Snoop Dogg Prepares To Smoke A Dogge Coin With Elon Musk 'On Tha Moon' As His NFT Pieces Sell Fast:
  73. SNL's Skit About NFT Mania Is Now On Sale As An NFT — Top Bid Is Already At $33K:
  74. Saturday Night Live's NFT of "What the hell's an NFT?" sketch:
  75. Saturday Night Live NFT of NFT Skit Sells for $365,000:
  76. ‘Obviously, we had no idea it was going to get here,’ say the guys who made the first NFT:
  77. NFTs Weren’t Supposed to End Like This:
  78. NFT Hack day (aka. "Hackathon") sponsorship and Rarible NFT protocol pre-release:
  79. How to create NFTs with JavaScript: (many details, step-by-step)
  80. 3 Reasons We Hate NFTs -- And Why Those Reasons Don't Matter:
  81. When You Buy NFT Art, You’re Buying a Link to a File:
  82. How to Make an NFT:
  83. Welcome to the NFT Restaurant Boom:
  84. UK's big crypto push includes minting its own NFT:
  85. What Is Yield Farming in DeFi?:
  86. A Cryptocurrency Freedom Manifesto — Is it Too Late for Bitcoin?:
  87. Interview -- How Bitcoin Created a Decentralized Crypto-Currency:
  88. An Alternate Internet and The New Peer-to-Peer Currency :
  89. BitCoin ME (info site on using BitCoin):
  90. How to accept BitCoin for small businesses:,_for_small_businesses
  91. On the Potential Adoption and Price Appreciation of Bitcoin in the Long Run:
  92. BitCoin and the demise of paper fiat money:
  93. Mycelium's Bitcoin Wallet Suspended from Google Play Store:
  94. Mt.Gox - (formerly) largest BitCoin exchange: | Mt.Gox Trade API (was once the leading exchange for converting between national paper currencies & BitCoin in either direction, but was embroiled in a hacking scandal & cover-up in 2014)
  95. Mt.Gox listing on Tokyo Chamber of Commerce:
  96. Mt.Gox (K.K. Tibanne): Now Verified by VeriSign:
  97. LibertyReserve - payment platform that supports Bitcoin deposits/conversions:
  98. Mt.Gox, The World’s Largest Bitcoin Exchange to Acquire, Compensate Loss Of Bitcoins:
  99. wikipedia: Mt. Gox
  100. The Inside Story of Mt. Gox, Bitcoin's $460 Million Disaster:
  101. Where did Mt. Gox's missing bitcoins go?:
  102. Coinbase Tests App for Employees to Grade Each Other During Meetings:
  103. Culture at Coinbase:
  104. The bursting of the Bitcoin bubble:
  105. HTG Explains - What Is Bitcoin, the Virtual Digital Currency?:
  106. How To Use Bitcoin – The Most Important Creation In The History Of Man:
  107. BitCoin - block hasing algorithm:
  108. $500,000 Hack of a major Digital Wallet will test BitCoin community:
  109. Is the cryptocurrency Bitcoin a good idea?:
  110. Bitcoin is the latest alternate currency to crash:
  111. Bitcoin for the unconnected - The Finnish protocol that lets you buy and sell currency through your TV:
  112. The Definitive History of Bitcoin (INFOGRAPHIC):
  113. BitCoin .vs. Banking (INFOGRAPHIC):
  114. BitCoin .vs. E-Money (INFOGRAPHIC): (case study of M-PESA digital currency/payments in Africa
  115. The Ricardian Financial Instrument Contract:
  116. The Bitcoin Protocol - How It Workhts:
  117. The "Dark Side" of Bitcoin:
  118. Bitcoin Prices Could Reach $196,165.79:
  119. Bitcoin - National Security Threat?:
  120. Why Bitcoin Is Unlikely To Be Overtaken This Generation:
  121. BitCoin approaches $10k:
  122. Bitcoin hit yet another all-time high – but its long-term future is less certain:
  123. Nasdaq is set to launch bitcoin futures:
  124. Bitcoin just lost $2,000 worth of its value in a couple hours:
  125. Does Bitcoin Mining really consume more electricity than entire Countries?:
  126. Trader who called bitcoin rally says cryptocurrency will surge above $100,000 in 2018:
  127. Blockchain influencer Oliver Isaacs and Vitalik Buterin, co-founder of Ethereum, convey how blockchain will change world:
  128. Power-sucking bitcoin 'mines' spark backlash:'mines'-spark-backlash
  129. Let’s destroy Bitcoin:
  130. Yep, Bitcoin Was a Bubble. And It Popped:
  131. All The Ways Bitcoin Can Fail:
  132. Bitcoin’s Purported Creator Says His Fortune May Remain Locked:
  133. How do you cash out $750,000 worth of bitcoin?:
  134. Is Bitcoin Really Throwing Energy Away?:
  135. I AM "HODLING":
  136. Bitcoin tumbles as China cracks down on cryptocurrency mining:
  137. Cornell Researchers - Bitcoin Not as Decentralized as Assumed:
  138. BitCoin only -- learning resources:
  139. How Anonymous Is Bitcoin?:
  140. Bitcoin hovers near 6-month high on Monday in hopes of the listing of the first futures-based bitcoin ETF:
  141. Dr. Craig Wright: | VIDEO #1 | VIDEO #2 | VIDEO #3
  142. WTF is an Airdrop? A Detailed Guide to Free Cryptocurrency:
  143. What Is a Crypto Airdrop? A Way to Stack Free Tokens and Coins:
  144. What Is “Ethereum 2.0” and Will It Solve Crypto’s Problems?:
  145. What Is a Wrapped Bitcoin (WBTC)?:
  146. wikipedia: Monero
  147. Monero Observer:
  148. How to buy Monero:
  149. Trezor - Monero support:
  150. Trezor Model T Is Fully Integrated Into the Official Monero Client:
  151. Monero GUI + Trezor integration questions:
  152. How to Setup Monero Wallet with "Trezor Model T" ahead of Schedule:
  153. How do I restore / recreate my Trezor Monero wallet?:
  154. What is the relevance of the restore height?:
  155. Risk & Repeat -- The complicated world of Monero:
  156. Facebook will ‘take out’ its all-time stock high after its expected crypto launch:
  157. Facebook will reportedly announce cryptocurrency this month, allowing employees to take it as salary:
  158. Facebook Cryptocurrency Whitepaper Announcement Due on 18th June, Report:
  159. About the Ravencoin Project:
  160. X16R - ASIC Resistant by Design (WHITEPAPER):
  161. wikipedia: List of cryptocurrencies
  162. What Are Altcoins?:
  163. What is the Best Wallet for Dero (DERO):
  164. What is Ripple Cryptocurrency and how does it work?:
  165. How Does Ripple (XRP) Work?:
  166. What is Ripple (XRP) and How does it Work?:
  167. Bitcoin's Biggest Competitor: What You Need To Know About Ripple:
  168. Why do people hate on Ripple? Help me understand:
  169. Why the haters hate XRP:
  170. 5 alarming reasons Ripple might not be what you think:
  171. WTF is $XRP (Ripple)?:
  172. 7 Ways to Buy Ripple (XRP) instantly in 2021 - A Beginner's Guide:
  173. Ripple Wins Ruling to Expose SEC Docs on Bitcoin, Ethereum:
  174. wikipedia: MintChip
  175. Royal Canadian Mint reveals MintChip, issues $50,000 developer challenge:
  176. MintChip launch Tuesday brings Canadian-made digital cash to consumers:
  177. Canadian Government to End ‘MintChip’ Digital Currency Program:
  178. WIRED - Minting the Digital Currency of the Future:
  179. Snappay promises quick, easy mobile payments:
  180. Poilievre has a point on central-bank digital currencies:
  181. How to Create a Cryptocurrency Wallet and Secure your Assets:
  182. How to Set Up a Basic Cryptocurrency Wallet:
  183. How To Create a Cryptocurrency Wallet?:
  184. How to set up a crypto wallet:
  185. WealthSimple - Crypto Trading Account:
  186. WealthSimple -- We’ve Got Wallets (Crypto, Not Velcro!):
  187. Best multi-crypto phone wallet on the market?:
  188. Important Factors Driving Bitcoin’s Drastic Growth in 2020:
  189. 7 Best Wallets for Cryptocurrency:
  190. Prove ownership of your keys and keep them safe:
  191. Connecting your wallet to a full node:
  192. Using trezorctl (CLI) commands with Trezor:
  193. "Couldn’t open wallet - Could not connect to the device Trezor":
  194. Trezor Adopts Swiss Travel Rule Protocol for Private Crypto Wallets:
  195. A decision on Address Ownership Proof Protocol (AOPP) -- why SatoshiLabs team removed its support from Trezor:
  196. EU lawmakers to crackdown on “unhosted wallets”. Is an unhosted wallet the same as self custody wallet? if so what does this mean for people using Trezor and other hardware wallets in Europe?:
  197. Privacy in Trezor Suite - Introducing the Tor Switch:
  198. Ongoing phishing attacks on Trezor users:
  199. Mailchimp - Crook (possible inside job by parent-company Intuit employee) stole cryptocurrency clients' mailing-list subscriber info :
  200. Mailchimp Hack Causes Theft of Trezor Crypto Wallet ‘Money’:
  201. API:
  202. DECENT 'Crypto' Investment Paves Way To Decentralized Content Distribution Revolution:
  203. Freewallet has appeared on a Netflix show:
  204. Take a look inside Kevin O'Leary's crypto wallet:
  205. Atomic Wallet Review - Security, Swaps and Supported Coins:
  206. Any good multi wallets?:
  207. Exodus, Atomic and Coinbase Wallet: Which one to choose?:
  208. List of BTC (and other Crypto) Wallets: (separated into types: On-Chain, Lightning, ClosedSource, OpenSource, Custodial, AdvancedProtocols)
  209. Exodus -- How do I keep my money safe?:
  210. How to cash out (from Exodus)?:
  211. Exodus + Trezor -- Hardware Wallet Experience:
  212. Getting started with Exodus and Trezor:
  213. How to set up a crypto wallet:
  214. wiki: Bitstamp
  215. Blockchain and the New Custom Compute Group: (Intel working on energy-efficient crypto-mining focused chipset)
  216. Electrum Server (original Python implementation):
  217. You Don’t Have to Pay Taxes on Crypto! And Other NOT TRUE Tax Myths:
  218. Crypto Tax Guide - How Crypto Taxes Work in Canada:
  219. IRS - Tax Treatment ofTransactions in Cryptocurrencyand IRS Tax Enforcement:
  220. How the IRS is trying to nail crypto tax dodgers:
  221. IRS Rules On Reporting Bitcoin And Other Crypto Just Got Even More Confusing:
  222. Executive Order 14067—Ensuring Responsible Development of Digital Assets: (June 2022 ex. order on Crypto/NFTs/Digital-Assets)
  223. China is on track to unveil a digital currency that it hopes could challenge dollar dominance:
  224. China’s Digital Yuan May Aid Russia Bypass SWIFT Ban, But Will It?:
  225. China's central bank plans digital yuan pilot for payments to Hong Kong:
  226. China Readies the Digital Yuan; Mester Says Fed Monetary Policy Should Remain Patient:
  227. Atlantic Council analysis of e-CNY launch impacts: | VIDEO
  228. Biden Administration Concerned Over Long-Term Effects of Digital Yuan, says report:
  229. Macau watchdogs will double down on digital yuan:
  230. What China’s New Digital Currency Tells Us About a Cashless Future:
  231. China’s Digital Currency Could Challenge Bitcoin and Even the Dollar:
  232. China Releases e-Yuan Cryptocurrency and Investors are Going All-In:
  233. China has given away millions in its digital yuan trials. This is how it works:
  234. China Crosses 2M Yuan in Daily CBDC Transactions During the Olympics:
  235. Over $315,000 in digital yuan used every day at Olympics, PBOC official says:
  236. China’s CBDC Has Been Used for $9.7B of Transactions:
  237. Chinese coin miners flock to new cryptocurrency "Chia" resulting in hard drive shortages and price surges:
  238. China enters 2022 with a first-mover advantage on the CBDC front:
  239. China’s CBDC (Central Bank Digital Currency) Disruptive Innovation:
  240. Carnegie Endowment fund for "International Peace" - China’s Digital Yuan: An Alternative to the Dollar-Dominated Financial System:
  241. U.S. Moves Closer To Digital Dollar:
  242. US Federal Reserve Digital Dollar much more likely than BitCoin adoption:
  243. Russia "forces White House hand" on digital dollar:
  244. Convert cryptocurrency to cash - How to cash out Bitcoin and Ethereum:
  245. How to send an asset in Atomic Wallet?:
  246. Atomic Wallet -- Buy crypto:
  247. Is it Time to Occupy Bitcoin Street?: 1% increase wealth in BitCoins by 27% at expense of increased difficulty for new users to mine BitCoins)
  248. Leaked Mt. Gox Document Linked to Consulting Firm Mandalah:
  249. Business Plan MtGox 2014-2017:
  250. Jed McCaleb's "secret" Digital Currency project:
  251. Bitcoin Above $1 Trillion for 10 Days As Crypto Outgrows US Banking Industry:
  252. I bought $1k of the Top 10 Cryptos on January 1st, 2018 (March Update/Month 39):
  253. Tracking 2018 Top Ten Cryptocurrencies – Month Thirty-Nine:
  254. SafeMoon - chart price:
  255. SafeMoon Crypto Raises $700,000 for New Exchange With Sights on $1m:
  256. How and Where to Buy SafeMoon (SAFEMOON) – An Easy Step by Step Guide:
  257. Canadian Bank to Block Cryptocurrency Transactions:
  258. Canada Banks Ban Users From Buying Cryptocurrency:

See Also

Cryptography | Currency | Virtual Currency | E-Commerce | E-Payment | Tax | Economy | Finance