Blackbird

Recording by Henri Dutilleux.

Recording identifiers

ISRC
GBAYC9603232
CopyrightID (CopyrightChains transaction hash)
0xac0362025fce133d477ed47f12f24d38a43ca95276338a5a9a46a176d663060a
Copyright registration time
2026-07-05T14:09:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:d4d4152305823fd34c395886b377caa2a5ef76645fe85d0c7bb5a0179795e4df

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.