Jens Bredal Nielsen is the CEO of BioInnovation Institute,BioInnovation Institute, Denmark Copenhagen, Denmark, and professor of systems biologySystems and Synthetic Biology, Chalmers at Chalmers Univ
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdd71f0bb76e1aefd2e2176d9c0edbd4e4aff5248466aed881d8952505a067e. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d56ce786-b2b7-4848-ab34-69973f53c545.json and https://artists.proofprofile.net/proofs/artist/d56ce786-b2b7-4848-ab34-69973f53c545.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).