String Quartet No. 14 in C-Sharp Minor, Op. 131: III. Allegro moderato

Recording identifiers

ISRC

NLA506900692

CopyrightID (CopyrightChains transaction hash)

0xa0eb0b50f85236d23050897206fb50d29cd0ea98c6e5d96f7b24d12c3b5ea961

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-08-01T02:22:04Z

Bitcoin block

960497

Canonical record hash

sha256:246441509b2869941443296017d5dc485f5dee0418950f269446262c8ca419d1

• Verify the CopyrightID on CopyrightChains
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• Read the machine-verifiable OTS result

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.