Berceuse, Op. 57

Recording by Frédéric Chopin.

Recording identifiers

ISRC
GBG3H1300013
CopyrightID (CopyrightChains transaction hash)
0xbfc5aaac400ec98dba88097eb741127315375101cf985e532cc9e3697f95a4a8
Copyright registration time
2026-06-23T16:43:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:19f62f2f1c65a3513c8b40408d74c1b8be060ca706d54c1fb44624f1c1718104

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.