Tajemny hrad

Recording by Daniel Hulka/Lucie Bílá.

Recording identifiers

ISRC
CZA230200120
CopyrightID (CopyrightChains transaction hash)
0xb321b299dc08847152e18d64ad1a7869fefe78883bf19347bcbbd10a07b4c4c0
Copyright registration time
2026-07-07T14:21:17+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:a6d4711315f87ac9474a638f67e15dc4dea1f3049781064f9e96728ac088547a

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.