Roti is a round flatbread originating from the Indian subcontinent. It is commonly consumed in many South Asian, Southeast Asian, Caribbean, East African, and Southeast African countries. It is made
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 0xef4f416db14576e71183b247a80b48edfee4a390c75e0118b4f72e04a5de72e1. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82537016-8f51-49f0-adc0-4fdfb6dbc3c8.json and https://artists.proofprofile.net/proofs/artist/82537016-8f51-49f0-adc0-4fdfb6dbc3c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).