Strategies & Market Trends
An SI Board Since December 2017
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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.

Or, more simply:

“Blockchain is a record-keeping technology which provides a continually growing and immutable list of records. Each of these records (called blocks) are linked and secured using cryptography. Blocks typically contain a timestamp, transaction data, and identifiers (hash pointers) to prove its link to a previous block. These hash pointers validate the block’s place, which makes the manipulation or modification inherently difficult…This means blockchain technology is used to record transactions between parties, on a common ledger, in a verifiable and permanent way. It is considered distributed because the ledger is not held in one place – it is instead held in many places and each transaction must be verified by the consensus of parties involved in a given network…Since the ledger is not held by a central authority or held in one place, it is considered decentralized.” --- Andrew J. Chapin, Co-founder and CEO of Benja

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.

Remember: "Software is eating the world" - Marc Andreessen

External resources

Cryptocurrency market caps:

Initial coin offerings (ICOs) market caps:

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

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

Beyond the Bitcoin Bubble (New York Times): Message 31439473

Bitcoin Mania (New York Review of Books): Message 31432686

Wikipedia entry:



Related SI boards

Bitcoin: Subject 59173

GBTC: Bitcoin Investment Trust (not an ETF): Subject 59732

IOTA (which does not use a traditional blockchain technology): Subject 59917

Binance (BNB): Subject 59928

Wagerr (WGR): Subject 59927

Fintech (Cryptocurrencies, ICOs etc.): Subject 59550

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306Very interesting article China's policymaking is far frMikeY1an hour ago
305Why Bitcoin fears Quantum Computers?—?and IOTA doesn’t hackernoon.comroguedolphin13 hours ago
304Will a principal who is disciplining a student in the future say "this willGlenn Petersen3yesterday
303Will a principal who is disciplining a student in the future say "this willThe Ox-yesterday
302 The disruptors could get disrupted. The so-called "sharing economy,"Glenn Petersen-yesterday
301Looks like the Canadian government has decided to give blockchain a test run: kidl-yesterday
300 With Bitcoin, some guys uses his PC or cell phone to send and trade crypto. Ifw0z-yesterday
299Cancelling physical bills of lading. Ok, I don't know enough about the procElroy-yesterday
298The site seems to be down ATM but there is a short video (2 mins) explw0z-yesterday
297Integration of a blockchain ledger into various and different software applicatiThe Ox-Thursday
296Hmmm, it sounds similar to supply chain management software programs that never Elroy-Thursday
295Consider this, that each grower, processor, distributor, retailer and transportaThe Ox3Thursday
294Ok, well rather than me spending loads of time reading random white papers, can Elroy-Thursday
293There's an upcoming ICO targeting global shipping. It's not open to US w0z-Thursday
292 <i>The distributed ledger technology that underpins cryptocurrencies is nElroy-Thursday
291How BitConnect pulled the biggest exit scheme in cryptocurrency by Glenn Petersen3Thursday
290Blockchain will be the killer app for supply chain management in 2018 The distrGlenn Petersen2Thursday
289<<ICOs moving closer to the 'old way' of doing biz..discounts for T'Munney-Thursday
288The BLCN fact sheet: BLCN ETF top holdings (As of 12/31/2017)Glenn Petersen-Thursday
287 IOW the chain is the disruptor not so much the coin. True, but there is not aw0z1Thursday
286I believe your read is correct.. which is why I posted it. The Blockchain is theSdgla-Thursday
285As I read it, neither ETF is actually investing in blockchain coins, but indirecw0z1Thursday
284 ICOs moving closer to the 'old way' of doing biz..discounts for early, Savant-Thursday
283Fascinating. New etf etf.comSdgla1Wednesday
282 Breaking: Bitcoin Value Currently Plummeting—No, Wait—Skyrocketing—No, PlummetiElroy-Wednesday
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