Rhapsody-Concerto for Viola and Orchestra, H. 337: II. Molto adagio

Recording by Bohuslav Martinů.

Recording identifiers

ISRC
CH1262000010
Release date of the album this recording appears on
2020-02-28
CopyrightID (CopyrightChains transaction hash)
0xb3416ce25e0fde067a12537449186887bbb601cb2c3bf55df620f3e58061b88c
Copyright registration time
2026-07-07T08:18:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:3ef428efa024e908622ce771fedaf6101d736c5404b0416062ef26658d4187d0

What this proof establishes

This recording was released in 2020, 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.