Duet in B-Flat Major, Op. 21, No. 1: 2. Tempo di menuetto

Recording identifiers

ISRC

US42M0430121

Release date of the album this recording appears on

2004-01-01

CopyrightID (CopyrightChains transaction hash)

0x12feecc34fe46394f0b4c847234dfcfd5c44fd40840511ccbab9000649d5a2f8

Copyright registration time

2026-07-31T07:07:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T08:38:45Z

Bitcoin block

960370

Canonical record hash

sha256:3ee034d934ac2f48d4e740f41fd73796755d000aa0e0db5eb837132332128539

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC US42M0430121

What this proof establishes

This recording was released in 2004, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.