Klay may refer to: Places Klay, Liberia Klay District, one of four districts of Bomi County, Liberia People People with the given name Klay Hall, American animation director George Klay Kieh (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 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 0x4906afdfbec50603232c8fea253212360080a53cd0d8d3fe065944a1185c4eda. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f32880de-ddcb-41a7-aafe-59fe9320c221.json and https://artists.proofprofile.net/proofs/artist/f32880de-ddcb-41a7-aafe-59fe9320c221.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).