String Quartet No. 12 in E Flat Major, Op. 127: IV. Finale

Recording identifiers

ISRC

DEF059404974

CopyrightID (CopyrightChains transaction hash)

0xf804686bf072ed8872822fd37a13694a6b9e5e4395f2d19355683df44ef8e50f

Copyright registration time

2026-06-24T16:45:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:32f45a0c86383a0a651c12df8bd40ceef33474d905a5fa7b8690acbbf50c3697

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
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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.