Okno v nebi

Recording by Petr Muk.

Recording identifiers

ISRC
CZA230700228
CopyrightID (CopyrightChains transaction hash)
0x6e6999c6de800980ce00b5e270a9953d22d3fcd451a0f9410717eccfe7cd4d26
Copyright registration time
2026-06-26T02:49:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:8515c5aa3271eb7502bed0322cb3999bbe7ce107ad428104f323c7d3d523cdf9

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.