thumb|300px|right|Rex Navarrete at Sev's Cafe in Malate, Manila Rex Lasat Navarrete (born May 27, 1969, in Manila, Philippines) is a Filipino American comedian whose material is geared toward Filipin
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 0x89e2df685b1b5fe336be78fa277c8db9ad39dd7504dbe119553989aa4a0f8469. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/edbd2c4a-920e-49dc-bcf5-06737ee329be.json and https://artists.proofprofile.net/proofs/artist/edbd2c4a-920e-49dc-bcf5-06737ee329be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).