Wiki / Forks / Bithereum (BTH)

Bithereum (BTH)BTH

From the Bitcoin Takeover Wiki · ✓ 2 sources · 0 podcast anchors · built 2026-11-13

A fork that copied Bitcoin up to block 491,406 (24 Oct 2017) but only started its own chain on 12 November 2017, with Equihash and replay protection.

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The wiki's angle: Bithereum's README gives the same two blocks and dates as Bitcoin Gold — last copied 491,406 on 24 October, own chain from 491,407 on 12 November 2017. It also shares the BTH ticker with Bitcoin Hot.[1][2]

Contents

  1. Fork
  2. Design
  3. References

Fork

The README says Bithereum “began as a fork of Bitcoin after block height 491406 on Tue, 24 Oct 2017 01:17:35 GMT and began being mined as a separate chain at block height 491407 on Sun, 12 Nov 2017 13:34:01 GMT”[1]. Any address holding Bitcoin at block 491406 “held an equal number of Bithereum” after the fork[1].

Design

The README lists an Equihash proof of work, per-block difficulty adjustment, “Replay protection (SIGHASH_FORK_ID)” and addresses with prefixes of B and H[1]. Its ticker, BTH, is also used by Bitcoin Hot[1]. The block numbers and dates match those Bitcoin Takeover gives for Bitcoin Gold[2].

References

  1. primaryBithereum README, GitHub BTHPOS/BTH [archived]
  2. btkBitcoin Gold: One GPU, One Vote (BTCTKVR: Forks!) [archived]

Related

Bitcoin Gold
The October 2017 fork that switched to GPU-mined Equihash, and later suffered repeated 51% attacks.
Bitcoin Hot (BTH)
A December 2017 chain split at block 498,848 with a new proof of work, later listed with a 1:100 ratio and no
Replay protection in the 2017 forks
How the 2017 forks did, or did not, make their transactions invalid on Bitcoin: Bitcoin Cash's SIGHASH_FORKID,
Categories: Forks · Fork lineage
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