Sequencing

A modular, verifiable fair ordering layer is a unique value proposition for Continuum

ContSeq

ContSeq is a natural successor to previous onchain timekeeping protocols like Proof Of History (POH). While the tech stack is explained in more detail in our whitepaper , we examine the core sequencing primitive briefly here.

Users submit (optionally timelock encrypted) transactions to the Sequencer. The sequencer maintains a cryptographic, VDF-based "clock" as a trustless proof of elapsed time / timekeeping device which is not tamperable. Upon submitting the transaction, it is instantly assigned a canonical queue position (a VDF "tick"), and it is instantly broadcast to full nodes - in a continuous manner, for execution. In this way, transaction inclusion and execution is final the moment the transaction is accepted by the sequencer - there is no batching or waiting for blocks to learn the fate of the transaction. For all intents and purposes, transaction inclusion and execution is Continous.

Blocks produces distinct boundaries around which reordering is profitable in classical blockchains. In continuum, transaction processing is continuous. Batches are put into "blocks" at a later stage in deterministic fashion, purely for voting and economic finality - however from a user or full node perspective, execution remains real time with no natural boundaries.