Alex Segura (born 1980) is an American author, comic book writer, artist, and editor. He has written numerous comics and novels, including Secret Identity, which won the 2023 Los Angeles Times Book Pr
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 0x8e545eb6442137d5cb9ab22cf7f6f11d16479a86159ab15ed2b10acb039a12f7. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e2f9116-45e4-4a8b-9f83-b5b64b2d986d.json and https://artists.proofprofile.net/proofs/artist/8e2f9116-45e4-4a8b-9f83-b5b64b2d986d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).