Overture in D - "La Calamità"

Recording by Johann Christian Bach.

Recording identifiers

ISRC
NLA507612728
CopyrightID (CopyrightChains transaction hash)
0x0329ce21517e2965f668f88ceb6d2e9ef9c9bba29d8cbb4aa6779c25a27534ed
Copyright registration time
2026-07-07T15:25:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:6aa3a26267b5d6ae840a3dce57499141c9185e291d046ba6f53b0c56a5449af2

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.