Telefon Č. 38 141

Recording by Václav Neckář.

Recording identifiers

ISRC
CZA168300094
CopyrightID (CopyrightChains transaction hash)
0x78c7323be0a124bda32e31172b03beb5e04bd4bfbf57ae12564331c67c680282
Copyright registration time
2026-07-07T22:21:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:4fce1d6a6006c1021ab4eaffeaf274405bbf4a3c310236672215b0cf95af70df

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.