Verified timeline

Events, implementation, and open milestones

Exact dates, heights, hashes, tags, and source links separate historical fact from proposed engineering and future network events.

24 Oct 2025

Initial BIP 110 draft recorded

The first draft appears in the official BIP repository changelog.

Verified

3 Dec 2025

BIP 110 assigned

The Reduced Data Temporary Softfork proposal receives BIP number 110.

Verified

25 Jun 2026

Proposal advanced to Complete

The status change is recorded in the official BIP repository.

Verified

8 Aug 2026 Height 961,631

Last shared Bitcoin block

Hash 00000000000000000000807f9dc917442a67910426d79ebb2f8aa2149327ce8a is present in both histories.

Verified

8 Aug 2026 Height 961,632

The block histories diverge

BTC accepts AntPool's non-signaling block. Enforcing nodes accept a bit-4-signaling block mined by Roughnecks through OCEAN DATUM.

Verified

9 Aug 2026

BIP 110 marked Closed

The changelog cites the chain split and stalled mining.

Verified

12-23 Aug 2026

Intermittent enforcement-branch mining

SHA-256d blocks advance the branch from height 961,634 to 961,638. This is a dated observation, not a permanent status claim.

Verified observation

15 Aug 2026

BLAKE2b proof-of-work implementation opened

Bitcoin Knots pull request #359 publishes an unfinished hard-fork implementation for review.

Open development

21 Aug 2026 Testnet4 149,460

RC1 BLAKE2b testnet activation

A BLAKE2b test chain forms, then is superseded after RC2 changes the activation height.

Obsolete

22 Aug 2026 Testnet4 149,537

RC2 BLAKE2b testnet activation

The transition is present in tagged source and independently exercised by the testnet4 mining guide.

Verified on testnet

24 Aug 2026

Reference-client development snapshot

Pull request #359 remains open and the mainnet Blake2bHeight remains unscheduled.

Verified snapshot

Testnet4 149,537

Opt-in unified signatures active in RC2 testnet code

SIGHASH_UNIFIED is active in the RC2 test composition. Mainnet activation remains pending.

Verified on testnet

Date pending

Consensus specification frozen

Verification will require a versioned specification and identified commit.

Pending

Date pending

Signed stable mainnet client release

Verification will require source, reproducible artifacts, hashes, and signatures.

Pending

Height pending

BLAKE2b mainnet activation scheduled

A tagged release and exact consensus source must publish the height and anchor.

Pending

Height pending

First valid BLAKE2b mainnet block

Independent node records must observe and agree on the activation block.

Pending

Date pending

Explorer, wallet, and market support

Add each service only after a verifiable release or formal announcement.

Pending