I. Prelude

Recording by Johann Sebastian Bach.

Recording identifiers

ISRC
HKI199207701
CopyrightID (CopyrightChains transaction hash)
0x78e065d6e925b907af161dfc34fd47962ab56f048b5bbf58576b9495918fd0ec

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T05:17:02Z
Bitcoin block
960348
Canonical record hash
sha256:4bf041e11fddf2c25c2cb26300f731f7e7f1b4ed92be78c6c8dc87fe1d44a85d

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.