54-56

Recording by Fermin Muguruza.

Recording identifiers

ISRC
ES90A0900066
CopyrightID (CopyrightChains transaction hash)
0x2add13ec46a99edcdd733bcef0604cf08b15d95de929d5bdb4e2920544fe1866
Copyright registration time
2026-06-10T18:35:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:8eecfd789e8c3c5c14403d841ddf6c0f5c01b93bf205506e917ccc3179ec6d17

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.