Špalíček Suite No. 1, H. 214a: V. The Wedding Polka

Recording by Bohuslav Martinů.

Recording identifiers

ISRC
GBLWD1600709
Release date of the album this recording appears on
2016-02-01
CopyrightID (CopyrightChains transaction hash)
0xe4e188348260abc01ec0d3f381ca2afd59f4f864d79627ff5997ebbbfc6eb2da
Copyright registration time
2026-07-30T10:11:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T10:42:33Z
Bitcoin block
960247
Canonical record hash
sha256:7910abe07cae102e4acc7714438866b307f189e39595980b1f3128929b97c07f

What this proof establishes

This recording was released in 2016, 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.