A trust degree mechanism based on dynamic authorization, proof of trust (PoT), is proposed in this study. Based on the mechanism, problems such as nothing-at-the-stake and bribe attack in the existing block generation strategies are fixed. There are two types of nodes in the network:miners and stakeholders. The trust degree is given according to the behavior of the node participating in the creation of a block. Once a node becomes a stakeholder of the network, it entrusts the block by signing its private key to the block. Finally, the blocks with trust degree compete with each other to be accepted as a legal extension of the blockchain. The cost of attacks against bribe attacks and common stake accumulation attacks, and the system's response to attacks is also analyzed. Simulation results show that the PoT mechanism can defend more efficiently against nothing-at-the-stake attack, bribe attack, and stake accumulation attack compared to proof of stake.