String Quartet No. 1 in F Major, Op. 18 No. 1: 4. Allegro

Recording identifiers

ISRC

DEF059404904

CopyrightID (CopyrightChains transaction hash)

0x5c30a10c2a0e85ee5e85d93d3dbee35d47ecb5a020618e5dd354dc1707116188

Copyright registration time

2026-06-17T04:40:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-17T19:07:14Z

Bitcoin block

954130

Canonical record hash

sha256:7360d2cd9d5539efb2c2770b73b327fbe006f9543b5b8d31e4f74de335a62982

• 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.