thumb|Tryphon Turkestanov Metropolitan Tryphon (; born Prince Boris Petrovich Turkestanov (Борис Петрович Туркестанов) November 29, 1861, Moscow — June 14, 1934) is a revered hierarch of the Russian
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 0xfb09c0757021f5e634e35af9319f4d7ca7ac0865383150437713e2ee13ec9809. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aea425c5-e5d5-4b7d-a4d8-c09c41537e4c.json and https://artists.proofprofile.net/proofs/artist/aea425c5-e5d5-4b7d-a4d8-c09c41537e4c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).