String Quartet No. 15 in A Minor, Op. 132: V. Allegro appassionato

Recording identifiers

ISRC

DEF059404995

Release date of the album this recording appears on

1997-01-01

CopyrightID (CopyrightChains transaction hash)

0x6a076dda9bc7ac655355073ae6ddf724fae647514594e7e134be5f5cab09aaf7

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T00:26:26Z

Bitcoin block

960327

Canonical record hash

sha256:97b90cafee086ffe3e16ba0a030aaa91788afda2e0aba838abf1f29cfe21c435

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF059404995

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.