Valse en do dièse mineur

Recording by Frédéric Chopin.

Recording identifiers

ISRC
FRZ299507030
CopyrightID (CopyrightChains transaction hash)
0x85fc1a1d564b5b554e1cfec500d97e24296bfd24b2406604815c144832034731
Copyright registration time
2026-06-06T11:23:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:822c563bd538693032403784c1ec5de49eba1580315600a2cbe8a5ac349ded75

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.