Echo de "Casta diva"

Recording by Frédéric Chopin.

Recording identifiers

ISRC
FRZ132425002
CopyrightID (CopyrightChains transaction hash)
0x72fc54bfc622dead586efc23a0aa86847311a7f2c0009a5f10a83ff5c6bb29b9
Copyright registration time
2026-07-06T08:30:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T18:39:05Z
Bitcoin block
957073
Canonical record hash
sha256:e63961053cb005dd06a1394311b7b5896a4b12442553b3d14fe13dc44fce1076

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.