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

Recording by Frédéric Chopin.

Recording identifiers

ISRC
GBAYC0500204
Release date of the album this recording appears on
2021-01-22
CopyrightID (CopyrightChains transaction hash)
0x88fe4090acbb2b4962ee7fd50778cf9f12fb72b329b42b1a11d0cf53b6e18984
Copyright registration time
2026-07-06T10:43:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T16:07:00Z
Bitcoin block
957061
Canonical record hash
sha256:4a0670b2270870adb1ed7a5ead38398d37f51b770f1e5e2d97775b7e320ab4f7

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.