ピアノ・ソナタ第2番 ヘ長調 K.280(189e)　第2楽章　アダージョ

Recording identifiers

ISRC

JPN201300485

CopyrightID (CopyrightChains transaction hash)

0xee9c4278e7044d00671d02f3bd2f445d7e7fe61f8c247f6b6467682475af19d3

Copyright registration time

2026-07-30T15:56:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T16:10:47Z

Bitcoin block

960277

Canonical record hash

sha256:5be4d28b7b33ee44cf4af28158ab304b1191fb77dbda0c084b7251106687ee02

• 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.