Kevin Henderson may refer to: Kevin Henderson (footballer) (born 1974), English footballer Kevin Henderson (ice hockey) (born 1986), Canadian ice hockey player Kevin Henderson (rugby league) (bo
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 0x7ffe2a7ca990f4364ac7840ea4680ee37fa82ccb219b0c173d35b094e06215ee. 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/a690292d-4152-4404-a55f-620a4a24f7f5.json and https://artists.proofprofile.net/proofs/artist/a690292d-4152-4404-a55f-620a4a24f7f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).