María de la O

Recording by Martirio.

Recording identifiers

ISRC
ES5121100935
Release date of the album this recording appears on
1988-03-20
CopyrightID (CopyrightChains transaction hash)
0x6aaf5074d4a9e39c10895e5bb2f7e1d7fdbadcf032004f0bc19d0c52cc665c68
Copyright registration time
2026-07-30T12:12:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T12:45:34Z
Bitcoin block
960258
Canonical record hash
sha256:89146a8a734fc95ac2144f5d19b491c01d03cf53949c85a75b9bd34f9847dc7b

What this proof establishes

This recording was released in 1988, 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.