String Quartet No. 9 in C, Op. 59 No. 3 - "Rasumovsky No. 3": 4. Allegro molto

Recording identifiers

ISRC

NLA507300998

CopyrightID (CopyrightChains transaction hash)

0x53e349dc79a7a3d91c18cb670b75230708b4a4b7df55c9f22cde977a475ada7a

Copyright registration time

2026-07-31T17:59:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T18:48:12Z

Bitcoin block

960448

Canonical record hash

sha256:3c71c9cb361a71135526455d5b62b5fc158e4436798bc25aad7c5ec4e64b90e5

• 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.