String Quartet No. 14 in G, K.387: 3. Andante cantabile

Recording identifiers

ISRC

NLA506601032

CopyrightID (CopyrightChains transaction hash)

0x38cf7616b33bf170ac6a720ca69ecff8733261519b5663a2ef6c95c9fa15c829

Copyright registration time

2026-07-30T02:07:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T02:30:29Z

Bitcoin block

960199

Canonical record hash

sha256:5b0ba46b51e47edf3db913672ad040a5b4284d6e6f572274f73b5b71730240f1

• 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.