Canción para Mamá

Recording by Hans el Oso.

Recording identifiers

ISRC
QZQMB2102058
CopyrightID (CopyrightChains transaction hash)
0xfb9d79ba1df99ac0de625f9edd8e8a83364b55b702c047895f07df1988bbdc3d
Copyright registration time
2026-06-18T09:52:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:5b8fd06a426207c6fd394127b6f707ec0127f2490b9b00a140aaada87db58d7c

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.