Dykstra is a Frisian surname describes a person who lived by a dyke. The suffix "-stra" is derived from old Germanic -sater, meaning sitter or dweller. The name originates in the northern Netherlan
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 0xc5ecc1819db1ff072af95b3a9a28db83491399a48ce94d0f0ac374b5b4e110f4. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5455735f-2001-4ae9-96ab-c86b44984ec3.json and https://artists.proofprofile.net/proofs/artist/5455735f-2001-4ae9-96ab-c86b44984ec3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).