No. 40B

Recording by Anthony Braxton Quartet.

Recording identifiers

ISRC
CH1311901552
CopyrightID (CopyrightChains transaction hash)
0xbaf2ab63147463f41d3c0ea4f893c29a1ca44ec39e5ff267cee215187058233c
Copyright registration time
2026-07-07T19:14:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:80fd8b9a3ad69e8fd07fa775313fdcae336c530aa6cf1118ba26cb20082693ca

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.