Prison Blues

Recording by Cássia Eller.

Recording identifiers

ISRC
BRUM72201318
CopyrightID (CopyrightChains transaction hash)
0x58a1edfb79c8631d5389462e404153500b81ea7fad81eb7c9b328af0e971f082
Copyright registration time
2026-06-25T17:55:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:936af4c8a3fa7191dd375c995226d59afe2536c70cdca1ed6a02eb53a0ec76f9

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.