String Quartet No. 10 in E Flat Major, Op. 74 "Harp": IV. Allegretto con variazioni

Recording identifiers

ISRC

DEF059504854

Release date of the album this recording appears on

1997-01-01

CopyrightID (CopyrightChains transaction hash)

0x737e956cb86987348159534a26a922fe20352b3424311135a7680237bbc64e19

Copyright registration time

2026-06-23T18:15:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:7a46019c1a9ee6c855426fdcebecd3df3af117d3450c65750af01f530919f646

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC DEF059504854

What this proof establishes

This recording was released in 1997, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.