thumb|The Blessed at the gate to heaven with St. Peter (1467–1471) by Hans Memling Pearly gates is an informal name for the gateway to Heaven according to some Christian denominations. It is inspired
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 0xf523ba6376487275c6a02d5b8c03fd34a8591e1025321284e4c5785c8ef90d39. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9db643f2-7090-4bd9-8853-4bd4004519c3.json and https://artists.proofprofile.net/proofs/artist/9db643f2-7090-4bd9-8853-4bd4004519c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).