@techreport{ruvalcaba-hctp-00,
    number =    {draft-ruvalcaba-hctp-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-ruvalcaba-hctp/00/},
    author =    {Cristian Xavier Ruvalcaba},
    title =     {{The Hash-Chain Context Transfer Protocol (HCTP)}},
    pagetotal = 15,
    year =      2026,
    month =     aug,
    day =       11,
    abstract =  {The Hash-Chain Context Transfer Protocol (HCTP) is a payload format and synchronization protocol for incrementally transferring an ordered, append-only sequence of conversational context between two endpoints over a bandwidth-constrained channel. Acknowledged history is represented by a single fixed-size rolling hash commitment (the "static root"); only not-yet-acknowledged context blocks (the "dynamic window") are transmitted. As a result, the per-message wire overhead attributable to history is constant and independent of the total number of previously acknowledged turns. HCTP is transport- agnostic and carries no confidentiality or peer authentication of its own; it is intended to run over a secure transport. This document specifies the HCTP data model, wire format, rolling-root computation, and synchronization state machine.},
}