ハイドンの主題による変奏曲 作品56a　変奏III

Recording identifiers

ISRC

JPP301800188

CopyrightID (CopyrightChains transaction hash)

0x6cefe93a838fa22a5c7de4ca3527f037fe1ca97b61ee934c1d87e2e58d1a4c23

Copyright registration time

2026-07-31T10:46:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T12:24:41Z

Bitcoin block

960397

Canonical record hash

sha256:5b52077a1badbccd77a2ab921125f863952705ee63051e7c170e62217c1dd196

• 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.