La Juma de Ayer

Recording by Compay Segundo.

Recording identifiers

ISRC
DELM41000919
CopyrightID (CopyrightChains transaction hash)
0xa55777e37e51f2b205dc57e4ca937d7a3e1d6bbc4a7d32af6e851123a827dc6c
Copyright registration time
2026-07-07T17:30:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:643a39d727af6e8a9ded337b4a9ab025f191a81a84c001215542beff5c17dba4

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.