Nocturne No.2
Recording by Frédéric Chopin.
Recording identifiers
- ISRC
- GBLLT2253040
- CopyrightID (CopyrightChains transaction hash)
- 0x2390a4d8be57af12ec93f383c10000552d7703c5b6b57c515daf69ed1a8cdd81
- Copyright registration time
- 2026-07-08T00:47:37+00:00
OpenTimestamps proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41Z
- Bitcoin block
- 957120
- Canonical record hash
- sha256:419e03a6331696269b748711682691947c9038f6e737fe5919b78d02def98887
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.