When I

Recording by Steve Lacy.

Recording identifiers

ISRC
TCAFF2074332
CopyrightID (CopyrightChains transaction hash)
0x23cd681d781203a215256ea0394e44806f5f7680611f9ae586aeb653f6b2576f
Copyright registration time
2026-06-01T12:15:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:ad6acaab85eb8347c51db784fc2fc4e385782d5eca38ec41e2fa183d3d5e8866

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.