{"copyright_id":"0x16626cbe97bb4cd01bf781a7ddec621f2a10b0ce8d8fbca6d32cd2dced9e3c2b","name":"Sonjib Dutta","registered_at":"2026-06-16T19:17:16Z","symbol":"NIM1149598","token_address":"0x8b9af5d6e1ad9f8dac8b2eb7a6570bdea3c2e898","type":"artist","uuid":"556ccc6c-f211-41dc-ad46-dd03ba6ee35b"}
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 0x16626cbe97bb4cd01bf781a7ddec621f2a10b0ce8d8fbca6d32cd2dced9e3c2b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/556ccc6c-f211-41dc-ad46-dd03ba6ee35b.json and https://artists.proofprofile.net/proofs/artist/556ccc6c-f211-41dc-ad46-dd03ba6ee35b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).