Nocturnes, Op. 62: No. 2, Lento in E Major

Recording by Frédéric Chopin.

Recording identifiers

ISRC
GBAYC8800383
CopyrightID (CopyrightChains transaction hash)
0x0d865a8981f951caa6fa977db0f9649691fba759079467082d03ec7583316121
Copyright registration time
2026-06-17T20:51:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:8576a77af251ccdc580c1b94fc78f1f24479afc46e1f5fe54b32b56bf7e5541f

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.