Elmar Gunsch, Günther Schmitz, Lilo Winter, Baldur Seifert, Ursula von Manescul
{"copyright_id":"0x2ea945153f66b181291a8cffd88c07601cdd362ce313d5092c06435a15449a8d","name":"Elmar Gunsch, Günther Schmitz, Lilo Winter, Baldur Seifert, Ursula von Manescul","registered_at":"2026-06-21T05:38:26Z","symbol":"NIM1835927","token_address":"0x7f625216e57f706828d702ebfe9ee264f86ef45f","type":"artist","uuid":"ddfa22e6-657d-44f2-a79f-66bf7e38c1d2"}
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 0x2ea945153f66b181291a8cffd88c07601cdd362ce313d5092c06435a15449a8d. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ddfa22e6-657d-44f2-a79f-66bf7e38c1d2.json and https://artists.proofprofile.net/proofs/artist/ddfa22e6-657d-44f2-a79f-66bf7e38c1d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).