String Quartet No. 14 in C Sharp Minor, Op. 131: II. Allegro molto vivace

Recording identifiers

ISRC

DEF056300202

CopyrightID (CopyrightChains transaction hash)

0xc7619ee8a0a96a6082275fb3a6c09861c7dfbd129b05805410ac02a5f21c3ba7

Copyright registration time

2026-07-07T03:42:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:3904f1ce534b04f603d02cbcec23b9e8bcad117b9163801d33177381be871a6a

• 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.