String Quartet No. 1 in C Major, Op. 1, No. 1: I. Allegro

Recording identifiers

ISRC

USSM11805783

CopyrightID (CopyrightChains transaction hash)

0x6f1522f1bcc37eb66321bf8a8a44ae205e596f98d5b5ee6d2247fdb8b2bf2521

Copyright registration time

2026-07-07T07:26:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:65069b63b513094a590eab9ca377e4842570da5f94a32356be5fa0c12b23b8d8

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
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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.