Determine subsequent-cycle status of initially exclusive transactions

Determine whether the 33 transactions that were initially exclusive to a single builder and later included in a subsequent auction cycle won by the same builder remained exclusive (present only in blocks from that builder) or became private (absent from the public mempool but present in blocks from multiple builders) in those subsequent cycles not covered by the Agnostic Relay dataset.

Background

The paper tracks transaction status (public, private, exclusive) across multiple bidding cycles during an 8-minute window on December 3, 2024, using data from Agnostic Relay. The authors analyze how transactions change status across cycles and report that exclusive transactions often transition to private or public, while public transactions remain public.

Among the observed cases, 33 transactions were initially exclusive to a builder and later included in a subsequent cycle won by the same builder. Because those subsequent cycles fall outside the primary dataset, the authors explicitly state they cannot determine whether these transactions remained exclusive or became private, leaving an unresolved question about their status in later cycles.