ISRC CZA230000481
Verified recording
CZA230000481 is “Jsem Knihou, Kterou Spalis” by Petr Muk,
registered on the CopyrightChains blockchain with CopyrightID
0xf7cbcef28fdf4e0e74d312cabb3455836bf944c9a6db6251105ce71d5c54c9b6 and independently timestamped
in Bitcoin block 960379 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA230000481.
Recording identifiers
- ISRC
- CZA230000481
- Title
- Jsem Knihou, Kterou Spalis
- Artist
- Petr Muk
- CopyrightID (CopyrightChains transaction hash)
0xf7cbcef28fdf4e0e74d312cabb3455836bf944c9a6db6251105ce71d5c54c9b6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T09:25:34+00:00
- Bitcoin block
- 960379
- Canonical record hash
sha256:53abba4181b554dbc2340f3e712b9f7cde32924c911626018f6e1cd3f2f1f4c1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA230000481
- Bitcoin block existence check
- https://blockstream.info/api/block/960379
Full record
Track page: Jsem Knihou, Kterou Spalis · Machine-readable JSON-LD