String Quartet No. 1 'after Tolstoy's 'The Kreutzer Sonata' ': IV. Con moto

Recording by Leoš Janáček.

Recording identifiers

ISRC
GBAYC9302015
Release date of the album this recording appears on
1995
CopyrightID (CopyrightChains transaction hash)
0x44ad6df3e94b54cf08fb28648b4c113a0dfece2834809f33807d6943065db62d
Copyright registration time
2026-07-06T22:59:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:c08e7a7ed14e1fc859df6d454df757f0a6392119bd013dc897bdf4cd3401ec21

What this proof establishes

This recording was released in 1995, 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.