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 0x34eaddfea90c18732c05408c790dad302c15cd807c1161e6e04c74353cae1ac7. Chain 2 (Bitcoin): anchored in block 953982 (2026-06-16T17:42:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c7792a1-f4ea-4bd3-a3d0-80dfd2f73ad1.json and https://artists.proofprofile.net/proofs/artist/2c7792a1-f4ea-4bd3-a3d0-80dfd2f73ad1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Poems'n Thorns (NyantGen Sweet Cat's Version)
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