Káta Kabanová / Act 1: Tak vidis, porad jen pro ni!

Recording by Leoš Janáček.

Recording identifiers

ISRC
GBF077641306
Release date of the album this recording appears on
1977-01-01
CopyrightID (CopyrightChains transaction hash)
0x3131e2e786c06f1e19e2adcc9c684494d79e28d304e7e70ab502b03151e5697e
Copyright registration time
2026-07-07T06:17:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:f807787c7ffeaec322a434bedd28f70ed4074393932c8e7e30e2f020904f2183

What this proof establishes

This recording was released in 1977, 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.