This AgentBlock presents an innovative infrastructure that integrates multi-agent robotic systems with blockchain technology to optimise industrial robotic production platforms. This research implements a three-layer architecture incorporating ROS-based robotic agents, an Ethereum Solidity blockchain network, and a middleware integration layer for decentralised management of industrial operations. The prototype was validated using the KUKA youBot collaborative robot and Ufactory Lite 6, leveraging the processing capability of the NVIDIA Orin board for executing control algorithms and distributed consensus. The implementation was carried out in a Linux environment with Gazebo for simulation, Python RViz for real-time data visualisation, and Visual Studio as the integrated development environment. Experimental results demonstrate significant improvements compared to traditional systems, including reduced latency and increased throughput. The proposed architecture demonstrated effective scalability up to 4 operations per second, maintaining a 95.58% success rate in task execution. The system implements specialised smart contracts for industrial process management, incorporating modified Proof-of-Stake consensus mechanisms for real-time environments. The validation included use cases for collaborative manufacturing, exception handling, production traceability, and resource optimisation, demonstrating the feasibility of blockchain-robotics integration in real industrial environments. The main contributions include a modular layered architecture, optimised protocols for real-time communication, and smart contracts for industrial automation. This work establishes solid foundations for future research in decentralised robotic production systems, with significant implications for the evolution of Industry 4.0.