thumb|Traditional tololoche The tololoche is a traditional musical instrument from southern Mexico. Its name comes from "tolo loch", from the Mayan language: tolo (bull) and loch (embraced), which wo
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 0x083fc9e5327c9842e812d3ada5441f988c2c5cfdcc4f64aa0cba7abae681b3a4. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db617290-4f6e-4c30-bbb9-2e5d9d9ea99e.json and https://artists.proofprofile.net/proofs/artist/db617290-4f6e-4c30-bbb9-2e5d9d9ea99e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).