The Cunning Little Vixen (Příhody lišky Bystroušky), JW I/9, Act II: Scene IV, Bývalo, bývalo, dávno už neni

Recording by Leoš Janáček.

Recording identifiers

ISRC
GBDGQ2035017
Release date of the album this recording appears on
2020-09-04
CopyrightID (CopyrightChains transaction hash)
0xd0a12d7d47fbcc8edcd97546611c53c1ace5ffe59a47a4cda7e003300e36cb30
Copyright registration time
2026-07-07T14:53:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:298aefada17345b8882b31c8539a9b089a01ce2e58dd1a116bd92e3fdcd59ee4

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.