ISRC CZA239800143
Verified recording
CZA239800143 is “Holky” by Daniel Hulka,
registered on the CopyrightChains blockchain with CopyrightID
0x67521b5c84ec1ce28d927c29fd8499506bae97c7afcfaf2229018c8eaedd8289 and independently timestamped
in Bitcoin block 960160 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA239800143.
Recording identifiers
- ISRC
- CZA239800143
- Title
- Holky
- Artist
- Daniel Hulka
- CopyrightID (CopyrightChains transaction hash)
0x67521b5c84ec1ce28d927c29fd8499506bae97c7afcfaf2229018c8eaedd8289
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T22:48:59+00:00
- Bitcoin block
- 960160
- Canonical record hash
sha256:ac241c211bfd9ae621cdf96544377729ddf3cf19cbd67e37f12b48687b16cdea- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA239800143
- Bitcoin block existence check
- https://blockstream.info/api/block/960160