Retrograde

Recording by Thomas Enhco.

Recording identifiers

ISRC
FRZ052200721
CopyrightID (CopyrightChains transaction hash)
0xb90be557982cc4b4be70f1359f441e237e0830eac089c5a3a00a3085f2295dd0
Copyright registration time
2026-06-23T07:48:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:0a0145140c53eb660897e2fee9a3a500e8bfe6541bcf24dd41680730ec7ed8a4

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.