Recommendation ITU-T Y.4464 "Framework of blockchain of things as decentralized service platform" introduces a decentralized Internet of things (IoT) service platform, blockchain of things (BoT), and provides its common capabilities and functionalities. A BoT entity is a functional entity or physical entity (e.g., IoT server, IoT device, IoT gateway and end user device) that participates in the activities performed in a BoT. A BoT peer is a logic function of a BoT entity to perform BoT-related functionalities in processes of communications, consensus-making, transactions and management. BoT peers are participants of BoTs which create and maintain BoTs. This Recommendation presents common capabilities, functional architecture and general interactions of blockchain of things peers.