Requiem: Requiem: 10. Quartetto. Confutatis maledictis

Recording by Johann Christian Bach.

Recording identifiers

ISRC
FRZ141025110
CopyrightID (CopyrightChains transaction hash)
0xec8617c2e63fa096d0ec13cf414e0ff4542b87e8f91f7df447e022bfb276ea83
Copyright registration time
2026-07-06T20:06:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:e2398ab24a0b497e9d19b1b76b1fcb1c76e352c801300fe1b0bcc8895d37f10c

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.