String Quartet No. 2 in D Minor, Hob. III:76 "Fifths": I. Allegro

Recording identifiers

ISRC

USSM17900648

CopyrightID (CopyrightChains transaction hash)

0x5f865946408fb5e08c91ca750a28c106c8ff3c0639e98fb054337355dc5fb810

Copyright registration time

2026-07-30T09:48:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T09:58:01Z

Bitcoin block

960241

Canonical record hash

sha256:ea2c7f26d7f863beb631922329eae2e6138ead28a04b2d8dbba47b028750ae34

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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.