thumb|right|Court Gējìs of the Former Shu by Tang Yin (1470–1524) Geji () were female Chinese performing artists and courtesans who trained in singing and dancing in ancient China. During the Warrin
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 0x02d3c7449fd448edbd8de1c00d178c3a374ada66f2c6b8a30aaed71cd150294f. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/097d1ffe-f5ad-45b6-8937-2b4c5728ff0c.json and https://artists.proofprofile.net/proofs/artist/097d1ffe-f5ad-45b6-8937-2b4c5728ff0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).