@techreport{jennings-moq-mocha-chat-00, number = {draft-jennings-moq-mocha-chat-00}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-jennings-moq-mocha-chat/00/}, author = {Cullen Fluffy Jennings and Suhas Nandakumar}, title = {{MOCHA Chat: Messaging over MoQ Transport}}, pagetotal = 20, year = 2026, month = jul, day = 6, abstract = {This document specifies the messaging functionality for MOCHA (MoQ Open Communication \& Hosting Architecture). It defines how participants send and receive messages in channels using MoQ Transport (MOQT) publish/subscribe primitives. Each device publishes messages on its own track within a channel namespace, enabling decentralized message production with relay-based fan-out. This specification covers message naming, format, causal ordering, delivery, roster management, and channel discovery for text-based chat.}, }