Dee or DEE may refer to: People Surname Dee, an alternate spelling of the Welsh surname Day Dee, a romanization of several Chinese surnames, including: Those listed at Di (surname) Some Hokki
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 0x3cd33e310b6a6d54f23e883935500947f5fc3070dca0cb31a95a1ce6fbba3cf8. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c61e7404-4787-475d-843d-4d9906bc8fcd.json and https://artists.proofprofile.net/proofs/artist/c61e7404-4787-475d-843d-4d9906bc8fcd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).