A dot is usually a small, round spot. Dot, DoT or DOT may also refer to: Orthography Full stop or "period", a sentence terminator Dot (diacritic), a mark above or below a character (e.g. ȧ, ạ,
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 0x948527b25886998189e12311962e1a90659509c01badfac3cc8ac6953c53c5ef. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/159881ab-a187-4372-a235-e5c27252a02d.json and https://artists.proofprofile.net/proofs/artist/159881ab-a187-4372-a235-e5c27252a02d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).