Fantasy in F Minor, Op. 49

Recording by Frédéric Chopin.

Recording identifiers

ISRC
USSM12102419
CopyrightID (CopyrightChains transaction hash)
0x721192fe37caa6897f89005e7dcf1cb304973e665d11cc57d4e5edf6e83e036d
Copyright registration time
2026-07-06T09:08:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T18:39:05Z
Bitcoin block
957073
Canonical record hash
sha256:41a42b96e4c81fbaf9776135eb800e85e23f46a245d3a17883dc4eb2e6df5392

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.