Prelude in C

Recording by Johann Sebastian Bach.

Recording identifiers

ISRC
GBBBC2200600
CopyrightID (CopyrightChains transaction hash)
0xa93fd028114d744215015df080660754e80e0149fa861b892f4a39a95afff8ee
Copyright registration time
2026-07-07T08:03:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:3cb5bd261052b26866dbc70b189b5d032eba354b5f8b371d0abdc75d6af7dcb7

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.