String Quartet No. 15 in G, D.887: 1. Allegro molto moderato

Recording identifiers

ISRC

NLA507622001

CopyrightID (CopyrightChains transaction hash)

0xc2db9c90eba414e16a9a5759de07982eb1ddf6a7620bc6b3e0965274c7e91ffa

Copyright registration time

2026-07-30T10:13:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T10:42:33Z

Bitcoin block

960247

Canonical record hash

sha256:0f74a42eeaed65c70f440fddd641c6bd46c07500c19a3770bc1368b6cce23af3

• 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.