String Quartet No. 6: IV. Allegro vivace

Recording identifiers

ISRC

USKC60910138

CopyrightID (CopyrightChains transaction hash)

0x5c3851f8832c1baae57ef393b56f3415b989e2c0c02e4d26ddd4a89b86e882d2

Copyright registration time

2026-07-31T17:31:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T18:48:12Z

Bitcoin block

960448

Canonical record hash

sha256:83b41bac0a6765dbefe2766b97b74ec7afd3157bf5264619fa195b8514d3d592

• 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.