Michael Duke may refer to: Mike Duke (born 1949), American businessman Michael Hare Duke (1924–2014), Anglican bishop and author Michael Duke (rugby league), Australian rugby league player
{"copyright_id":"0xb328f3bcdae52aaf15fdfebabc957725ef46d99fee10ab2c92c18cacaf65b02a","name":"Michael Duke","registered_at":"2026-06-16T12:54:21Z","symbol":"NIM1058245","token_address":"0x658fa957de8f50e1f24f48a0befcb7ae5f52a37e","type":"artist","uuid":"42ee53c3-edf1-46e4-98ce-95b37cc2fb96"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb328f3bcdae52aaf15fdfebabc957725ef46d99fee10ab2c92c18cacaf65b02a. Chain 2 (Bitcoin): anchored in block 954050 (2026-06-17T05:14:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42ee53c3-edf1-46e4-98ce-95b37cc2fb96.json and https://artists.proofprofile.net/proofs/artist/42ee53c3-edf1-46e4-98ce-95b37cc2fb96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).