Káta Kabanová / Act 1: Je cas, Tichone

Recording by Leoš Janáček.

Recording identifiers

ISRC
GBF077641310
CopyrightID (CopyrightChains transaction hash)
0xeffe626981ad25f1271fb76e4e481fa4931db9e79d1dbc19f7515ea293876424
Copyright registration time
2026-07-07T04:08:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:72fc21da0add41d53c41d9e66070467bb7da263e8e4ff06856557eca700f24b9

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.