thumb|Dried bark strips, bark powder and flowers of the small tree Cinnamomum verum Cinnamon is a spice obtained from the inner bark of several tree species from the genus Cinnamomum. Cinnamon is use
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 0x1d0b75f371b42d862dc154b9e00904e3eeba2d61e62437fb09e6d67af958fec6. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4299421e-b612-42a2-9b9f-f0023e750e2c.json and https://artists.proofprofile.net/proofs/artist/4299421e-b612-42a2-9b9f-f0023e750e2c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).