EDI may refer to: Government European Deterrence Initiative, a US defense program for strengthening European defenses Federal Department of Home Affairs (German: ), the Swiss interior ministry The
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 0xd3b1477a25f478ea7d4e0a65a86f2d2a5875a6c8a7a6d8e520a883ac8d04fc07. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e2b9055-86f1-4b16-be04-ba0c882a350c.json and https://artists.proofprofile.net/proofs/artist/1e2b9055-86f1-4b16-be04-ba0c882a350c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).