Prelude in A-Flat Major No. 26, Op. posth

Recording by Frédéric Chopin.

Recording identifiers

ISRC
FR47Q1000470
CopyrightID (CopyrightChains transaction hash)
0x6e41dee07b443f01584a299c4b4b99f05fb5f49851374664e5312c4f930f2dc7
Copyright registration time
2026-07-30T05:11:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T05:21:45Z
Bitcoin block
960210
Canonical record hash
sha256:32a6185e9d30a4be1c01070dd2628b76f9aff70016c688e714420afc9e855a0b

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.