Gert Baltus, Uli Philipp, Joachim Wichmann, Marlies Schönau, Harry Kalenberg, Lore Ebehard
{"copyright_id":"0xb40cdce075ec188dc6ebba2d18142ee4432a1eb61f6ae28f7a87b0f3b70083a1","name":"Gert Baltus, Uli Philipp, Joachim Wichmann, Marlies Schönau, Harry Kalenberg, Lore Ebehard","registered_at":"2026-06-20T05:52:17Z","symbol":"NIM1531550","token_address":"0xc6e17da294c8edc7e40d852a7925d1748b2cf658","type":"artist","uuid":"a12a3969-284c-48bd-abcb-e5857a588a4b"}
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 0xb40cdce075ec188dc6ebba2d18142ee4432a1eb61f6ae28f7a87b0f3b70083a1. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a12a3969-284c-48bd-abcb-e5857a588a4b.json and https://artists.proofprofile.net/proofs/artist/a12a3969-284c-48bd-abcb-e5857a588a4b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).