Que Triste

Recording by Piso 21.

Recording identifiers

ISRC
MXF152200885
CopyrightID (CopyrightChains transaction hash)
0x4e2b42abf3ffceb1b145a4a4339b702332735b74d00d023e0f9bf3f8deb83815
Copyright registration time
2026-06-02T00:05:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:24792190df4458ef7c74cf353bd9b2f036d80cb34ed3e1db1ce0b91f9f6e5a03

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.