Berceuse in D flat, Op. 57

Recording by Frédéric Chopin.

Recording identifiers

ISRC
NLA507510132
Release date of the album this recording appears on
1998-01-01
CopyrightID (CopyrightChains transaction hash)
0x184191876a9d4321ad28283365b5edf4fd46e7aeb91c9adccf553cf81c682cca
Copyright registration time
2026-06-20T08:02:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:0fe20a6fa250f0cb0a74cd3c2e7db905adb3788542c0c4899f7a51fbcc12d51d

What this proof establishes

This recording was released in 1998, 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.