I. Allegro moderato

Recording by Joseph Haydn.

Recording identifiers

ISRC
HKI199251215
CopyrightID (CopyrightChains transaction hash)
0x83b35b6b0a1f93a11f82fa0d0cc4caf9307c5d77113e4ae7984d5ea0ee00de69
Copyright registration time
2026-07-31T04:59:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T05:17:02Z
Bitcoin block
960348
Canonical record hash
sha256:f9a26ea305df80ddb151b849421a4007cbc2957bfb9108297ff0972356e65d59

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.