Every 20 milliseconds, a “tick” occurs. During this tick, every validator’s BULK Tile independently executes the matching engine on the set of orders it has received for that tick. The critical innovation here is that this process is fully deterministic. There is no leader or central sequencer dictating the order of execution. Instead, fairness and consistency are guaranteed by a simple, unbreakable mathematical rule. Within each tick, all orders are sorted based on a deterministic key derived from hashing the order’s core attributes: hash(pubkey∣nonce∣tick)hash(pubkey | nonce | tick). This cryptographic sort ensures that every honest validator, regardless of its geographic location or when it received the orders within the tick window, will construct the exact same order book and produce the exact same set of trade fills. This solution completely eliminates the possibility of front-running or malicious reordering by any single party, including the validators themselves. It establishes a level playing field where the only thing that matters is the time an order enters the system, embodying the principle of “Execution Worth Quoting Into”. If a validator receives an order late for instance, an order intended for tick t arrives during tick t+1 the deterministic order key ensures it is still correctly processed as belonging to tick t. Any potential duplicates that might arise from network delays are filtered out during the final commit phase.