B:9 Prelude in C minor, Op. 8 No. 1

Recording by Henryk Pachulski.

Recording identifiers

ISRC
GBEYQ2243622
CopyrightID (CopyrightChains transaction hash)
0xf0fc24ca8cd67d5e864619cfad8cf19705c7bdef1386048946dd29b0e261331b
Copyright registration time
2026-07-07T06:50:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:bc51da5ac1f1e34e9b7e160ebbcf040171917f65a4f505e863b2f6dbdd9cf412

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.