Skinn is a surname. Notable people with the surname include: Ann Masterman Skinn (1747–1789), English novelist Dez Skinn (born 1951), British comic Tony Skinn (born 1983), Nigerian–American basketbal
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 0xe3d9c41ff8890147e433bda37d8ab1c7e507bcf703de143c5f940e135e6443b1. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3265e01-9603-4fd2-aec3-776f9d9a69a6.json and https://artists.proofprofile.net/proofs/artist/b3265e01-9603-4fd2-aec3-776f9d9a69a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).