Kin usually refers to kinship and family. Kin or KIN may also refer to: Places Kin empires and dynasties of China, now romanized as Jin Kin, Okinawa, a town in Okinawa, Japan Kin, Pakistan, a vill
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 0x9bc2384534c77184f20494875ff3e1f9233cb991c7f11d079cccf261243eeab4. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a46e9afd-8982-4be5-9d90-c6cfe71bc223.json and https://artists.proofprofile.net/proofs/artist/a46e9afd-8982-4be5-9d90-c6cfe71bc223.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).