Fantaisie Impromptu in C-Sharp Major, Op. 66: Allegro agitato

Recording by Frédéric Chopin.

Recording identifiers

ISRC
SEAEL0160080
CopyrightID (CopyrightChains transaction hash)
0xf6982b0372537b34b0e5a459feb81713f45d10c23593db78cbb52b5b1ad75033
Copyright registration time
2026-07-06T22:22:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:f2d6d8919c6e3a71335252e68f6f9412b331bf8a2f1b0bff66d0c9a5bb0ccca9

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.