Michael Joseph Kurland (born March 1, 1938) is an American author, best known for his works of science fiction and detective fiction. Kurland lives in San Luis Obispo, California. Writing career Kur
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 0xdcced5ed6c001100791dc1c83b2d9cb9296dea2b3d3a22cc86f06d44183b1017. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/af60528a-e765-45a3-a152-838e4187c373.json and https://artists.proofprofile.net/proofs/artist/af60528a-e765-45a3-a152-838e4187c373.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).