Nuestra Cancion

Recording by César Portillo de la Luz.

Recording identifiers

ISRC
GBMEZ0935275
Release date of the album this recording appears on
2011-02-14
CopyrightID (CopyrightChains transaction hash)
0xc12e19838a37588f0ccea5f612bb372d72ad950b0e23bd3643ca2ec6e47c92af
Copyright registration time
2026-06-23T22:12:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:043e12bf821c15b7f10e6cfe309fa103fea0fb04d308ca4b70df43e3a7b44869

What this proof establishes

This recording was released in 2011, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.