I. Allegro

Recording by Johann Sebastian Bach.

Recording identifiers

ISRC
HKI199911108
CopyrightID (CopyrightChains transaction hash)
0x61f42d14a093c37d49567a9dd8e5237fdf704d9a83a992aa444df60420eda019
Copyright registration time
2026-06-08T21:16:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:f6fb29163cee044ef15ab9d3599de99e3c39f183ae4e1ea778b64c22b7428b1d

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.