On August 17th, Turingbitchain (TBC), the Bitcoin smart contract layer, has released Turingcontract.com, a smart contract development platform based on the native Bitcoin UTXO model. At present, the testing phase is only open to developers in the bitcoin field by invitation. The appearance of the Turing Contract represents that the Bitcoin designed by Satoshi Nakamoto is Turing-complete, and this move will also play a positive role in promoting the opening (op_cat) of the BTC Core development team.