String Quartet No. 16 in F Major, Op. 135: II. Vivace

Recording identifiers

ISRC

NLA506800452

CopyrightID (CopyrightChains transaction hash)

0xf43239cb865b1bedd7ed85f01e57ac87843a73a1b67a8dbc5559827b825e5134

Copyright registration time

2026-08-01T01:05:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-08-01T01:44:32Z

Bitcoin block

960494

Canonical record hash

sha256:7d960adb7eb0eb7e58d156ee8331d89984227b6dbc219f4597e057fc0edc5d7b

• 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.