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

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEN962005102
CopyrightID (CopyrightChains transaction hash)
0xad3caff5c1e5192b45502f637e2fb9fb185517f5a322d2f8502ea9151404929a
Copyright registration time
2026-06-08T17:51:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:c2dd40a0e95588b391d6ef382c2abbe6073ebfa41bf9b759c1072cce794ddf50

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.