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Strategies & Market Trends
Blockchain and Cryptocurrencies
An SI Board Since December 2017
Posts SubjectMarks Bans Symbol
4885 238 2 BTC
Emcee:  Glenn Petersen Type:  Moderated
A blockchain is a digitized, decentralized and globally distributed public ledger of transactions that is constantly growing as completed blocks (the most recent transactions) are recorded and added to it in chronological order. The Harvard Business Review has described it as “an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way.” A blockchain is typically managed by a peer-to-peer network collectively adhering to a protocol for validating new blocks. Once recorded, the data in any given block cannot be altered retroactively without the alteration of subsequent blocks, which requires collusion of all of the other blocks in a chain. All of this happens in an open and transparent environment.

The first blockchain was conceptualized in 2008 by an anonymous person or group known as Satoshi Nakamoto and implemented in 2009 as the core component of the technology underlying bitcoin, where it now serves as the public ledger for almost all cryptocurrency transactions.

Blockchain’s cryptocurrency applications are only the tip of the iceberg of its potential applications. Some observers believe that the widespread adoption of the blockchain technology could potentially be more disruptive than the introduction of the Internet. Some blockchain boosters say that the development of blockchain rivals, in significance, the introduction of double-entry bookkeeping in Renaissance Italy. Blockchain in this context is triple-entry bookkeeping where the third entry is a verifiable cryptographic receipt of every transaction.

Many businesses, from energy to healthcare to food are already exploring and implementing blockchains in an effort to trim costs\ and secure and share information more efficiently. They do so knowing that there very survival may be at stake.

In the summer of 2016, Dan Tapscott, the Co-Founder and Executive Director of the Blockchain Research Institute, delivered a TED Talk on the “Blockchain Revolution.”

How the blockchain is changing money and business

Corporations and individuals can create private “permissioned” blockchains which use an access control layer to govern who has access to the network. In contract to public blockchain networks, the users on private networks are vetted by the network owner.

This board has been created to discuss the underlying technology of blockchain, the potential and actual usage of the technology and, most importantly, the investment opportunities surrounding blockchain. Inevitably, these will include the cryptocurrencies and some casino stock plays that will flare out and crash.

"Software is eating the world" - Marc Andreessen

External resources

Cryptocurrency market caps:

Estimated cost of Gas transactions: 28-22 Gwei | GAS NOW - ETH Gas Price forecast system

Satoshi Nakamoto whitepaper (Bitcoin: A Peer-to-Peer Electronic Cash System):

Vitalik Buterin whitepaper (A Next Generation Smart Contract & Decentralized Application Platform):

Decrypt: Your guide to Bitcoin, Ethereum & Web 3.0 - Decrypt



The Block: The Block - The first and final word in digital assets (

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4885The most clear explaination of how #bitcoin[graphic] upgraded the world's aMike Hardy-2 hours ago
4884Real world applications is what I'm looking for. Something real. Something uw0z-4 hours ago
4883<i>FI's like hedge funds (Blackrock), sovereign funds (UAE, Saudi, etcElroy-yesterday
4882But.....when is Ethereum going to lower event ticket commissions or help me to bw0z-yesterday
4881<i>I'd guess many of the 18 million software devs are switching to bloElroy-yesterday
4880Did a quick search and found this estimate from 4 years ago. I'd guess manyw0z-yesterday
4879Interesting article. But it seems odd that they say the number of people workinElroy-yesterday
4878Number of people working in blockchain space climbs almost 80% year-on-year [grw0z-yesterday
4877Peter Schiff urges investors to sell Bitcoin amid current 'sucker rally'longz-yesterday
4876Crypto-skeptic Peter Schiff agrees to liquidate his troubled bank (
4875Ethereum just pulled off its final test run ahead of one of the most important eGlenn Petersen-Thursday
4874SOLANA ROCKING IT....longz-Wednesday
4873Companies have been trying for decades to make "workflow" software. Mow0z-Monday
4872<i>Why don't you spend a little time poking around IBM Blockchain (orElroy-Monday
4871Therefore I conclude you guys are talking your book, and hyping your investmentsw0z2Monday
4870"If Crypto were really as impactful as you and others seem to believe, we ww0z-Monday
4869<i>I believe you may be suffering from a mental block (e.g. "Bitcoin Elroy-Monday
4868Crypto Miner Pushback Suggests Ethereum Offshoots Are Coming Ethereum miners faGlenn Petersen-Monday
4867Are your assets fit for the digital age? (Click to read original...below not rew0z1Monday
4866At some point there has to be some beef to the story. What are these blockchainsw0z4Monday
4865<i>mass adoption cannot be stopped. It will happen.</i> I still donElroy-Sunday
4864Not sure what you mean that mass adoption cannot be halted???? My bad. I wantClaude Cormier2Sunday
4863<<You didn't know that Cardano has never been down since inception andT'Munney-last Saturday
4862The Humbling of Coinbase In just over a year, the United States’ largest cryptoGlenn Petersen-last Saturday
4861It is hard to compare private centralized blockchains which are mostly used by eClaude Cormier-last Saturday
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