Nocturnes, Op. 62: No. 1 in B Major. Andante

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEN962005101
Release date of the album this recording appears on
2021-08-13
CopyrightID (CopyrightChains transaction hash)
0xd2642dea72fbf72a0dd6641d1a7859b0e38015cb4cd7bc66ee611f464125501e
Copyright registration time
2026-06-08T15:05:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:8ec78a68d2e5e6b05a82844fe38b39d87bc6390fe4bb5cad120f200520326cea

What this proof establishes

This recording was released in 2021, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.