String Quartet No. 2 in A Major, Op. 68: III. Valse. Allegro

Recording identifiers

ISRC

FR7JM2394070

CopyrightID (CopyrightChains transaction hash)

0x3592142715a6abfd3b287cb7a4a79badf0a594ef4a8dcdaa3d3788d004baba1e

Copyright registration time

2026-07-30T08:30:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T08:33:28Z

Bitcoin block

960231

Canonical record hash

sha256:66bc2addba52097fed448a224ef76166ca83a5dd1cbfc7f941986f01d40f7ea9

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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.