Desconocida

Recording by Marta Sánchez.

Recording identifiers

ISRC
ES5009800089
CopyrightID (CopyrightChains transaction hash)
0xfb97ecbb2e4b13a7b42d89dd6cbcd6a70c5a77143ec8c7ee41c922313093c809
Copyright registration time
2026-06-06T08:04:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:f1d4c915ed1f7f8d03d656ab9c5eb277f3dda310d929fca8d5068d077ab3d4a2

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.