Aiming at the problem that single chain block-chain cannot simultaneously meet the needs of weakly centralized network security verification and economic and environmental value, a three chain block-chain architecture is proposed that combines physical, economic, and environmental. Firstly, with the concept of "time-sharing energy blocks", a carbon measurement method based on source charge similarity and considering transaction information is designed. Secondly, a three chain coupled smart contract is designed. A series of processes such as energy block order placement, trading, delivery, settlement, and assessment are deployed in the smart contract. After, in response to the personalized and differentiated needs of P2P energy block trading orders, a NFBO-Token is designed to connect various links and physical devices on and off the chain, and the environmental rights of energy block carbon reduction trading are monetized in the form of EC-Token are proposed. Finally, case studies have shown that the three chain block-chain can effectively solve the network security verification, value representation, and transfer issues caused by the transaction of physical electricity assets on the block-chain, and achieve accurate tracking and accounting of indirect carbon emissions from energy blocks.