"Minute" Waltz

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEN960901400
CopyrightID (CopyrightChains transaction hash)
0xcd2e4f32436bf9c9aeab2a9344e99ee352e597f2df13140f95d309793228ff17
Copyright registration time
2026-06-04T12:13:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:551c7d286258b6e1f16f138efaf7c094fce3d81a1d937f497b259ea7fc6ac382

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.