Artic or ARTIC may refer to: Places Artic, Washington, an unincorporated community Transportation Anaheim Regional Transportation Intermodal Center, a transit hub in Anaheim, California Articulat
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 0x866b055467d0ad2adc91e603529417ac6a8392b16ed32dc8dc6fbf7f7c54b1aa. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/682c7ec3-e133-4350-9d5f-70abe1505c48.json and https://artists.proofprofile.net/proofs/artist/682c7ec3-e133-4350-9d5f-70abe1505c48.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).