Querida

Recording by Piso 21.

Recording identifiers

ISRC
MXF152000303
CopyrightID (CopyrightChains transaction hash)
0x5b7a7d97593938129ee94b16a4384c880ae83916f2b1d97be25e106ca01bac06
Copyright registration time
2026-06-04T08:07:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T15:41:10Z
Bitcoin block
953528
Canonical record hash
sha256:d99a46ffed733c058c0d11b4cf8851efa62a03530815f42a73e18c5d85026912

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.