String Quartet No. 3: I. Allegro non troppo

Recording identifiers

ISRC

USKC60910149

CopyrightID (CopyrightChains transaction hash)

0xa2012830493e70c87e95320244a91eb9af31f4915765ac7facf709a288a73c45

Copyright registration time

2026-07-31T21:20:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T22:27:44Z

Bitcoin block

960473

Canonical record hash

sha256:1b64505e57bf7faec1a44a032f20c4afc091a583037dc892469b2ccd5508816f

• 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.