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Bitcoin’s blockchain rewrite time reaches all-time high

Akash Anand



Source: Pixabay

Bitcoin [BTC]’s resurgence on the cryptocurrency charts also caused a change in other factors including mining characteristics and adoption rates. In a recent tweet, Jameson Lopp, the CTO of CasaHODL and creator of stated:

“The amount of time it would take for an attacker with 100% of the Bitcoin network hashrate to rewrite the entire blockchain has reached an all-time high of over 400 days.”

Source: Twitter

Source: Twitter

This data was calculated by dividing the cumulative chain work by the estimate of hashrate at the time. Some users in the Bitcoin ecosystem had their own concerns about that data, with Satoshi Disciple, a Bitcoin enthusiast asking:

“Jameson, it is not clear how is this calculated? If anyone runs this much hashrate, won’t difficulty be different (i.e. much higher) on that chain to force the blocks being produced every 10 minutes.”

To this question, Lopp responded that for the attack mentioned by the user the attacker would be mining a completely different chain in private and can only publish the blocks once their chain achieved a greater cumulative proof of work than the main network. Other users also had the doubts of why the metric wasn’t always going up as there was more cumulative work being added every day. To this, Lopp responded:

“Yes, but this metric is cumulative work divided by current hashrate, so the derivative of the current hashrate will be the main factor.”

At the moment of writing, Bitcoin’s mempool size was quite low after the numbers spiked on June 7. The mempool size is the aggregate size of the transactions waiting to be confirmed, which at press time was 2.224 million bytes. Jameson Lopp was also in the news recently when he discussed the topic of governance in the Bitcoin ecosystem and who actually controlled the Bitcoin core. Lopp had mentioned one of his own articles which said:

“While there are a handful of GitHub “maintainer” accounts at the organization level that have the ability to merge code into the master branch, this is more of a janitorial function than a position of power. If anyone could merge into master it would very quickly turn into a “too many cooks in the kitchen” scenario. Bitcoin Core follows principles of least privilege that any power bestowed to individuals is easily subverted if it is abused.”

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Engineering graduate,crypto head and Arsenal fan. Is fascinated by technology and all its marvels. Strictly against pineapple on pizza.


Facebook’s Libra is a double edged-sword, but will benefit Bitcoin, says Caitlin Long





Facebook's cryptocurrency Libra is a double edged-sword, but will benefit Bitcoin [BTC], says Caitlin Long
Source: Unsplash

On 18 June, the world’s biggest social media platform, Facebook, introduced its new cryptocurrency, Libra, set to launch in the first half of 2020. The coin that would have its own blockchain will be backed by several sovereign currencies, and these reserves would be managed by the Libra Association. The association will also be engaged in several other key activities, which would focus solely on the development of the Libra ecosystem.

Notably, the coin has brought together major players in both the financial and technology industry including, MasterCard, Paypal, and Coinbase. Despite such strong backing however, the concept of the coin was soon shot down by several influencers and government authorities.

The French Minister of Finance and Economy, Bruno Le Maire, released a statement asserting that Facebook’s digital currency becoming a sovereign currency was “out of question,” adding that “it can’t and must not happen.” Along with this statement, the Finance Minister also raised concerns about money laundering and terrorism funding and urged G-7 countries Central Bank Governors to draft a report on the new “global currency” for their meeting in July.

Further, Facebook’s cryptocurrency is also facing hurdles in its native country. Maxine Waters, Chair of the House Financial Services, has requested the social media giant to hit the pause button on the development of Libra, until Congress and regulatory authorities hold a discussion on the digital currency. This request was put forth mainly because of the firm’s “troubled past.”

In an interview with WhatBitcoinDid, Caitlin Long, Co-founder of the Wyoming Blockchain Coalition, stated that Libra had its pros and cons, adding that it was a “double-edged sword.” However, the blockchain evangelist continued to assert that this was going to benefit Bitcoin, stating that the social networking platform was “making cryptocurrency a mainstream word.” She added that Facebook would introduce the concept of digitally scarce money to people and that these people would look for the best cryptos that would retain the most value over time. That crypto was going to be Bitcoin, she said.

Long stated,

“This is a detour kind of like Andreas analogy, it’s the intranet before internet. We’ve even seen it in this industry, it’s blockchain not Bitcoin but people are coming full circle back around to Bitcoin. These are detours that are ultimately helpful to gaining adoption and wider support, but they’re not where we end up and I think we will end up in Bitcoin.”

Further, Long was asked whether Libra was going to be its own currency, considering it will not be pegged to a specific currency, but several fiat currencies. To this, she stated that Libra was indeed going to be a currency of its own, similar to Bitcoin. She stated that it was going to function like a “central bank,” remarking that it would be a “private version of a central bank.” Long went on to add,

“They’re going to be managing reserves against the liability. For them it will be the people who own the coins and they will be managing the reserves against that […] they are going to be marketing this in the developing world, this is going to be a developing world concept probably more than a developed world concepts […] so my guess is this is mostly an emerging market phenomenon secondarily a European phenomenon and lastly a U.S. phenomenon.”

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