Daniel Robert Middleton (born 8 November 1991), better known as DanTDM (formerly TheDiamondMinecart), is an English YouTuber, gamer, and author. He is primarily known for his Let's Play videos, partic
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 0xca9bfa699e6a970279fe4ba27d5b3eb188ab9b3b64bc1813c89380557ffd4857. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0028215f-0fab-4b43-8e76-498d59ec4b7a.json and https://artists.proofprofile.net/proofs/artist/0028215f-0fab-4b43-8e76-498d59ec4b7a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).