String Quartet No. 1 in G Major, Hob. III:75: II. Adagio sostenuto

Recording identifiers

ISRC

USSM18100981

CopyrightID (CopyrightChains transaction hash)

0xbdcfb013e1101297497997ce804ed828f5d730b8afbdef54b1727f3e07ab5962

Copyright registration time

2026-07-07T07:21:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:96ff56bae36099489ce9eb3d89e7221e6aa65f3fa6b0eaae3152fd72a400748b

• Verify the CopyrightID on CopyrightChains
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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.