Když jsem já sloužil

Recording by Miloslava Pospíšilová.

Recording identifiers

ISRC
CZA162000782
CopyrightID (CopyrightChains transaction hash)
0x82a18326b90822f5d67ccaa2dcdb45289b8249b1b81626bcc61d7d25c4793077
Copyright registration time
2026-06-18T21:23:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:c85947b8dd1c4040068c18c61c587bc960aa2730e24b459a519e4f6f7a122e04

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.