ISRC CZA540254603
Verified recording
CZA540254603 is “Hříbě” by Heidi Janku,
registered on the CopyrightChains blockchain with CopyrightID
0xff4b268e2dbadb19d33aac7a0cb4357f9b75ab22d44d1f71da3cf942d9eb0101 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA540254603.
Recording identifiers
- ISRC
- CZA540254603
- Title
- Hříbě
- Artist
- Heidi Janku
- CopyrightID (CopyrightChains transaction hash)
0xff4b268e2dbadb19d33aac7a0cb4357f9b75ab22d44d1f71da3cf942d9eb0101
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:c3b106ff89865ca6f5821720b6b4ee90a217074ea2fbef2b0e138885f406467e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA540254603
- Bitcoin block existence check
- https://blockstream.info/api/block/956304