String Quartet No. 2 in D Minor, Hob. III:76 "Fifths": II. Andante o piu tosto allegretto

Recording identifiers

ISRC

USSM17900649

Release date of the album this recording appears on

1981

CopyrightID (CopyrightChains transaction hash)

0xab128c318f6412d3bfd8f1de91baa36ff28a9ec73282a6b12372770152b054ac

Copyright registration time

2026-07-31T09:37:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T09:50:37Z

Bitcoin block

960383

Canonical record hash

sha256:90b3ca96cb05561481cab8a0852b05e22577ad8fc910d3a5b7ed1f67459c43ad

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USSM17900649

What this proof establishes

This recording was released in 1981, 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.