Sonatina for Clarinet and Piano, H. 356: I. Moderato

Recording by Bohuslav Martinů.

Recording identifiers

ISRC
GBLWD1401207
Release date of the album this recording appears on
2014-02-01
CopyrightID (CopyrightChains transaction hash)
0xf670440f365e25a1062f37792e05a2c708680dd6393b379c615a2e033b696db3
Copyright registration time
2026-07-07T17:22:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:34f5ae4a251f491b730357ffe9ce11ccdcc023b56e03b1888044dfd793d771fe

What this proof establishes

This recording was released in 2014, 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.