12の練習曲, 作品10: 第3曲 別れの曲

Recording identifiers

ISRC

JPG201821040

CopyrightID (CopyrightChains transaction hash)

0xeb61e475fd44e82a988c615e5893003440c7c2415db62cb47e171429c2a276ff

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T15:42:38Z

Bitcoin block

960273

Canonical record hash

sha256:e65985ca31203c6ec790595d50ede41e530f28af8459362504f11224fb1741c7

• 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.