thumb|230px|Merkén Merkén or merquén ( or ) is a smoked chili pepper (or in Spanish, ají) used as a condiment that is often combined with other ingredients when in ground form. Merkén is a traditio
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 0x54e64c0d680061001be2c2c8bc3b65c4fb46b7044188d9b84fed199bf3aa0f23. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/59c4c8fe-9c7b-4fbd-af09-da4cde0a5fe0.json and https://artists.proofprofile.net/proofs/artist/59c4c8fe-9c7b-4fbd-af09-da4cde0a5fe0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).