Fluxx is a card game published by Looney Labs. It is different from most other card games, in that the rules and the conditions for winning are altered throughout the game, via cards played by the pla
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3365e9d9837122edbfa486fc6e3f019eab3fefb869bbe359a93b44ce3968028d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c25ec173-097e-4f3f-9b3d-1bfa3f5ba850.json and https://artists.proofprofile.net/proofs/artist/c25ec173-097e-4f3f-9b3d-1bfa3f5ba850.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).