It's Possible to Increase Bitcoin's Block Size Without a Hard Fork: Blockstream Co-Founder

Mark Friedenbach, a bitcoin developer and co-founder of the popular Blockstream company, has recently revealed a scaling approach he called “forward blocks,” which could essentially help increase BTC’s block size without a hard fork.

Currently, bitcoin can accommodate a small number of transactions per second, and is unable to compete with traditional payment networks such as that of Visa. While some believe the cryptocurrency should scale through a block size increase – which would require a hard fork - others argue this approach will lead to centralization, and prefer other solutions.

A hard fork is essentially a change to the network that isn’t backwards-compatible, meaning all of the cryptocurrency’s users need to upgrade to keep up with the change. A soft fork, on the other hand, can be backwards-compatible.

Friedenbach’s approach, according to a transcript of his presentation at the Scaling Bitcoin workshop, would be able to boost the flagship cryptocurrency’s on-chain transaction capacity through a Proof-of-Work (PoW) alternation achieved through soft forks and “privacy-enhancing alternative ledgers (side chains).”

According to Friedenbach, a former space apps developer at NASA, the forward blocks approach could ultimately help increase the cryptocurrency’s “settlement transactions volume to 3584x current levels,” while improving censorship resistance via sharding.

Here, the developer refers to sharding as a change to the PoW system and a series of developments that would see bitcoin’s blockchain scale. Most cryptocurrency users refer to sharding when mentioning Ethereum’s scaling solution, which would see multiple network computers divide transaction workload between them to scale the blockchain. These two, per Friedenbach, are “largely not” the same.

Speaking to CoinDesk, the former NASA employee noted his approach could help with the scaling debate, as the community often opposes hard forks because of how hard it can be to do them safely. He was quoted as saying:

Forward blocks makes that whole argument pointless. We don't need a hard-fork to scale bitcoin, if and when we decide to do so. It can be accomplished as a soft fork, like SegWit was.

SegWit, as CryptoGlobe covered, was launched one year ago and recently saw its usage go over 50%. During his presentation, he further suggested it could be good to replace bitcoin’s current halving mechanism, which halves block rewards every four years. To him, a more linear approach could be more beneficial to the cryptocurrency, as it wouldn’t suddenly affect the ecosystem.

Notably, Friedenbach reportedly got to his forward blocks approach by starting out thinking about a “development of a dual PoW change where you introduce a new PoW with a soft fork.” While he noted this wasn’t a proposal, it’s a “good place” to start thinking about the solution.


A Controversial Solution

While some could look at the former NASA contractor’s approach as revolutionary, CoinDesk reports not everyone is excited about it. Pseudonymous bitcoin developer “Shinobimonkey” was quoted as saying it was a “network attack being called an upgrade.”

Blockstream’s CEO Adam Back noted that “it’s OK,” as discovering mechanisms “can be useful and separate from whether it would be practical technically and in terms of user consensus.” To him, it’s so far just another tool.

Per the news outlet, Friedenbach isn’t advocating to use forward blocks on bitcoin either, but is merely trying to put the option out there. He’s reportedly set to test it on “Freicoin,” an altcoin he created.

Former U.S. Presidential Candidate Says He's 'All for Cryptocurrencies'

Omar Faridi

Ron Paul, a prominent author, physician, and former U.S. presidential candidate, recently revealed that he supports decentralized cryptocurrencies and their underlying blockchain technology.

Ron Paul: Governments Should Support Cryptocurrencies

Paul, a well-known critic of the American government’s fiscal policies, told CNBC during a “Squawk Alley” interview (on July 15, 2019) that cryptoassets create more competition for fiat currencies and the traditional financial system.

Paul also noted that governments should support the development of blockchain-based digital assets by creating a regulatory framework that prevents fraudulent activities. He remarked: 

I’m for the least amount of regulation. I don’t know what’s [going to] happen to cryptocurrencies. I think it’s a great idea. And I only have one rule: no fraud.

“Legalizing Freedom of Choice” and Preventing Fraud

According to Paul, governments have an important role and responsibility, which involves detecting and investigating fraudulent crypto-related schemes. He explained:

What I want to do is legalize the freedom of choice, absent blatant fraud.

Paul, who’s been a vocal critic of the U.S. Federal Reserve (questioning why it exists), compared cryptoassets to the gold bullion. He argued that both assets compete with major fiat currencies, and that “governments aren’t very tolerant of competition.”

“I’m Not Too High on Our Own Currency”

Paul further noted:

[Governments are] not even tolerant with using the Constitution to compete with the fiat dollar. Because gold and silver, you can’t use it.

In January 2014, Paul had said that he had been an advocate of “competing currencies” for a long time. He stated (at that time): 

I’m not too high on our own currency (USD), and I think alternative is a good method.

Paul has also predicted that the US dollar would eventually collapse or no longer be the world’s most dominant currency. He believes that fiat currencies cannot last forever as they will “all self-destruct” eventually.

He remarked:

Right now, the world is engulfed with fiat currency; they’re all paper currencies. That’s one of the other reasons the dollar holds up: What are you competing against, the euro and the yen? The competition out there isn’t any good.

Beginning with Bitcoin (BTC), blockchain-based cryptocurrencies have allowed users to exchange value in decentralized manner - without requiring third-parties to finalize the transaction.

Peer-to-peer (P2P) monetary transactions may continue to challenge the traditional financial system - as they present a more efficient and potentially more cost-effective alternative to conducting business