Pending data

pending is a view of the sequencer right now, not a durable stage or finality signal. A pending block or transaction can disappear, be replaced, or move into a different block.

In particular, a pending block hash may be null and may later change. Do not use the pending hash as an immutable identifier. Reconcile by transaction hash and confirm inclusion against later canonical blocks; apply your own confirmation policy before treating state as final.

Robinhood does not expose txpool_*, and newPendingTransactions is not available on WebSocket. The sequencer feed is the nearest live-intake analogue, but it is not a canonical pending pool and has no replay.