ISRC CZH681400048
Verified recording
CZH681400048 is “Za Všechny Z Nás” by Janek Ledecky,
registered on the CopyrightChains blockchain with CopyrightID
0x52ef10fc980f6cf8180f870b0da87687f937bd1ddaac6c951b6c28dcfa2058db and independently timestamped
in Bitcoin block 960273 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZH681400048.
Recording identifiers
- ISRC
- CZH681400048
- Title
- Za Všechny Z Nás
- Artist
- Janek Ledecky
- CopyrightID (CopyrightChains transaction hash)
0x52ef10fc980f6cf8180f870b0da87687f937bd1ddaac6c951b6c28dcfa2058db
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T15:42:38+00:00
- Bitcoin block
- 960273
- Canonical record hash
sha256:2ace900f01ab919b3e5c37ed6b06ad1b8c4bf5de1248bdc6dbc6c1342b8a60e3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZH681400048
- Bitcoin block existence check
- https://blockstream.info/api/block/960273