thumb|Spices at a central market in Agadir, Morocco thumb|A group of Indian herbs and spices in bowls thumb|Spices of Saúde flea market, São Paulo, Brazil In the culinary arts, a spice is a seed, fr
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 0x8fd8ad2bea4b27a1d78d79786af2aff1fb6a967494b0962a9ac48d46fe079ab3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7cdfb0d5-609a-4c97-83bd-6c950587c913.json and https://artists.proofprofile.net/proofs/artist/7cdfb0d5-609a-4c97-83bd-6c950587c913.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).