54-56

Recording by Fermin Muguruza.

Recording identifiers

ISRC
ES90A0900131
CopyrightID (CopyrightChains transaction hash)
0xd39de77907a02a7b091bb564d3acdf2792f886398bc63c99f2deca578fabbc54
Copyright registration time
2026-07-29T13:54:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T14:28:24Z
Bitcoin block
960117
Canonical record hash
sha256:0d18d483babfd4796182e019df3293040ebc1a71f8315c04835c225091e29cda

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.