Nocturne

Recording by Lili Boulanger.

Recording identifiers

ISRC
FR50X1957305
CopyrightID (CopyrightChains transaction hash)
0x4faf9e4efe9b2fbbebab5be7b29fd78c0f9536add5370ad4a452c242d001d7f6
Copyright registration time
2026-06-08T04:07:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:f6bc4edd29c0f34fafd3b27f50bbd069d1718b1daf9dc7fc123f898cb83fed6e

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.