Bloodie is a 1998 Czech puzzle video game for MS-DOS. Development The game began life as a demo program and variation of Boovie, and it uses the same graphics engine as the other game. The game is si
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 0x2e85c3885861980cfe0270fd5dd2f3b3b307cc5bfe65f4f57bbb0f46cbe98004. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22a60c68-d532-45eb-b2e1-f7e84b63a4df.json and https://artists.proofprofile.net/proofs/artist/22a60c68-d532-45eb-b2e1-f7e84b63a4df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).