3 Ecoissaises Op. 72 N. 3

Recording by Frédéric Chopin.

Recording identifiers

ISRC
ITUM71000132
CopyrightID (CopyrightChains transaction hash)
0x1d434f683235f4e6c7df676c7e097c6ff4796ba95ba38fc680734b8b433f8e2c
Copyright registration time
2026-06-19T04:36:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:e54eef5333d1608aae436aa62493efe4ac9fb93d4d9156ade08978573f44b6e6

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.