Kirk commonly refers to: Kirk (word), a Scottish word meaning "church", often referring to the Church of Scotland in particular It may also refer to: People Kirk (given name), people with a first
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 0x642035e71b8d77115adafac4ba863e7b275110071ed96be464110cea779c2605. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de17ead2-102c-43c4-b79f-a2bf0d990b7d.json and https://artists.proofprofile.net/proofs/artist/de17ead2-102c-43c4-b79f-a2bf0d990b7d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).