Berceuse in D-Flat Major, Op. 57

Recording by Frédéric Chopin.

Recording identifiers

ISRC
GBSAM1802436
Release date of the album this recording appears on
2018-07-06
CopyrightID (CopyrightChains transaction hash)
0x492465731919aba7952727518370502abc11e0ec97367373b184c201489cc102
Copyright registration time
2026-07-30T03:29:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T04:47:22Z
Bitcoin block
960207
Canonical record hash
sha256:9a79b1682f05730dc63d1b28ec295ac044b93309eecdc881a510abd05c33d435

What this proof establishes

This recording was released in 2018, 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.