24 Préludes, Op. 28: 2. In A Minor

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEF055590202
CopyrightID (CopyrightChains transaction hash)
0x363ef5d71261e860ba07b4bfe37be49ec77d4df3761256d358750b9d8ef39497
Copyright registration time
2026-06-22T18:54:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:b4af955b79a745986ad3c44620d4524e016f5524e4f9ddd081bf77e571257ee2

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.