Dirty Minds is a board game made by TDC Games in Itasca, Illinois. Created in 1988 by Larry Balsamo and Sandra Schaeffer, it was originally sold only in novelty and adult stores such as Spencer Gifts.
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 0xca72e6d799b05b540601fbb9402f1b0baa48ac2839b04ce5d109d6c34593f2dd. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64957930-19f7-46cb-9821-d850d696c134.json and https://artists.proofprofile.net/proofs/artist/64957930-19f7-46cb-9821-d850d696c134.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).