Káta Kabanová / Act 1: Zázrak!

Recording by Leoš Janáček.

Recording identifiers

ISRC
GBF077641301
CopyrightID (CopyrightChains transaction hash)
0xa76b90780bd762cd2cbe096e3c093d0c810e58509418d09cf6ec43fa25293ace
Copyright registration time
2026-07-06T06:28:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:207209d783ae00f140dfc08bd703180a72bb36c7c33283fed7234927e2db1e36

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.