thumb|right|220px|Logotype of DEDI encyclopedia DEDI is the first online encyclopedia of the natural and cultural heritage of Slovenia. It was set up in 2010 as a publicly accessible web site, allowi
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf172e36619f17afd7d7348706b2e3448cfd069e1dfa7543376aa2d6b9e624778. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b67a3e06-18e4-4257-b83d-839ba5d5f2f4.json and https://artists.proofprofile.net/proofs/artist/b67a3e06-18e4-4257-b83d-839ba5d5f2f4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).