Waltz

Recording by Sergio Díaz De Rojas.

Recording identifiers

ISRC
QM24S1924055
CopyrightID (CopyrightChains transaction hash)
0x21c8f7bf7bd9df14288c8d027c269eb9cdafb37ce624afb1656a0e4f25b6b075
Copyright registration time
2026-06-04T11:52:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:690177679b14bd015081187d3e793adc9324b4be165b827dbebcc0ebf74111ee

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.