String Quartet No. 1 in G Major, Hob. III:75: I. Allegro con spirito

Recording identifiers

ISRC

USSM18100980

Release date of the album this recording appears on

1981

CopyrightID (CopyrightChains transaction hash)

0x5a95ec3eae3c53bee4579c58db6ae5b09fa127218b5781c88844f548d8011ade

Copyright registration time

2026-07-30T15:22:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T15:42:38Z

Bitcoin block

960273

Canonical record hash

sha256:353f9f104b09d6b99e56bfa59bdf869d97eddc3a1d3ce3cee031662c1d03baba

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC USSM18100980

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.