El preso

Recording by La Sonora Matancera.

Recording identifiers

ISRC
BGA671626522
CopyrightID (CopyrightChains transaction hash)
0xe5ae30d99e57bb3ca495e4d17128bfac32ae3dc71f4af8ded9e5e7c212d2f1a7
Copyright registration time
2026-06-28T02:41:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T16:51:38Z
Bitcoin block
956375
Canonical record hash
sha256:5451179b8f42efc57f6a22d587ef8dc81894b78b849fc08252d136727491bf19

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.