Prázdný Expres

Recording by Naďa Urbánková.

Recording identifiers

ISRC
CZA161101735
CopyrightID (CopyrightChains transaction hash)
0xa74c46f9c1f5ad8ef8669d2a8ea2ec1d417a35aed7d3b49aee3b8e683798e259
Copyright registration time
2026-06-19T15:23:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:8c6a3024e3d4daaa130810bc9385fa4d17b76e8c68e0bbbce05e40e6d1506328

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.