ISRC CZA165700047
Verified recording
CZA165700047 is “Ostýchavý” by Josef Zíma,
registered on the CopyrightChains blockchain with CopyrightID
0xa1af81ff95cf035717b78661a0bb3ce3e8a43364b5e6767057221e48266fd251 and independently timestamped
in Bitcoin block 957120 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA165700047.
Recording identifiers
- ISRC
- CZA165700047
- Title
- Ostýchavý
- Artist
- Josef Zíma
- CopyrightID (CopyrightChains transaction hash)
0xa1af81ff95cf035717b78661a0bb3ce3e8a43364b5e6767057221e48266fd251
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:ef7ee9ae8f7928db7d3ed8a64b72b8aef007723d885e06ff091f71c64b12fe5d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA165700047
- Bitcoin block existence check
- https://blockstream.info/api/block/957120