Dan-I (born Selmore Ezekiel Lewinson; July 1951 – 19 May 2006) was a British disco musician, signed to Island Records, who had a Top 30 hit in the UK Singles Chart in 1979 with a single called "Monkey
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 0x6e8f321fbb15817d995a52279a3d7b4bfa3a950c892e3a36c31b7b0b9322e35a. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52b83379-1ed4-440e-b90e-6b5268a68aab.json and https://artists.proofprofile.net/proofs/artist/52b83379-1ed4-440e-b90e-6b5268a68aab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).