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Garzik Forks UnitedBitcoin Away from “Maximalists” to Support Altcoin Communities

December 13, 2017

A new project called UnitedBitcoin (warning: the site autoplays audio) promises to add smart contract features using the UTXO model, support for the lightning network and SegWit, and eight-megabyte blocks. Headed up by Jeff Garzik, the lead developer behind the failed SegWit2x hard fork, along with Matthew Roszak and SongXiu Hua, this UnitedBitcoin (UB) hard fork will offer replay protection to prevent people from accidentally spending their coins on both the Bitcoin and the UnitedBitcoin blockchains.

Garzik told Bitcoin Magazine that “10% of the total worldwide SHA-256 hash power” has moved to the new UB network, with much of the support coming from China and older mining equipment that was no longer profitable due to the escalating difficulty in mining bitcoin. He noted that UB is already supported on the ZB and EXX exchanges.

Garzik Forks UnitedBitcoin Away from “Maximalists” to Support Altcoin CommunitiesGarzik Forks UnitedBitcoin Away from “Maximalists” to Support Altcoin Communities

The UB white paper outlines how lost bitcoins have created deflationary pressure that has pushed the price up. Because those bitcoins are out of circulation, the supply is further decreased. One of the issues that UB seeks to address is to find a purpose both for those lost bitcoins and for “inactive” wallets by creating a stable cryptocurrency linked to their addresses.

All active Bitcoin addresses will receive the same balance on the UB chain, much like previous forks. The balances of UB on inactive addresses, however, will be confiscated by the UB Foundation and used to “serve the community.”

Inactive addresses are defined in the white paper as “addresses without activity since block height #494000 (November 11, 2017) and as a result didn’t automatically receive UBTC during phase 1 of the asset allocation procedure.”

UB does not distinguish between an “inactive” address and one which is simply being used by a long-time “hodler.”

“There is no difference. An inactive account is an inactive account,” said Garzik. “Like during [the] Ethereum new coin creation, you had to take a proactive step, otherwise you got zero [ether]. This is normal for new token creation — new chain, new ERC20, but different from all other Bitcoin Forks. We are trying to do something new and different.”

Anyone with a prior balance of 0.01 BTC in an “inactive” address at the time of the November 11 fork can still get UB tokens, so long as they are willing to take such a “proactive step”: that is, they make at least one transfer to their own Bitcoin address between Block 498,777 and Block 501,878 (December 12, 2017, to 12:00 GMT on January 3, 2018, GMT).

Only the original address can make the transfer to itself, and the receiving address must be used as one of the sending (input) addresses.

One privacy issue to consider is that in order to “proactively” claim BU tokens, the protocol forces users to reuse their Bitcoin addresses; this action puts privacy at risk and, unless it is done carefully, may link many of the users’ coins together.

It’s a gold mine for blockchain deanonymization, merging up UTXOs and reusing addresses. Can’t help but think such an artificial qualification is deliberate.

— Johnathan Corgan (@jmcorgan) December 13, 2017