Choral No 1 BWV 645 - Instrumental

Recording identifiers

ISRC

FRZ076301450

CopyrightID (CopyrightChains transaction hash)

0x3f01a1df88b1f8149a1d18a0bfd8f10bb2ab6a2e52e3af58b886f756fae4d072

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T23:30:38Z

Bitcoin block

960478

Canonical record hash

sha256:d612a74a88e13fa33fcc2ad370e9435485562393030fd8847074b73bb243b2d7

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.