Divertimento in B-flat Major for Two Horns and Strings, K. 287: iv. Adagio

Recording identifiers

ISRC

USKO11300036

CopyrightID (CopyrightChains transaction hash)

0x9ac5fb0b6f22fcf66b61608bc298795d3f47d88cf3f4b079f2ca1fe6584b426c

Copyright registration time

2026-07-31T15:18:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:27:29Z

Bitcoin block

960422

Canonical record hash

sha256:5b928b7765b0f76b2820ff4d6103bf9e10a48753a5fa987606d170d03e21e826

• Verify the CopyrightID on CopyrightChains
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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.