BLOG · 8 Sept 2026 · 6 MIN
A first-come sequencer changes what speed means
On Ethereum you buy position with fees. On Robinhood Chain you cannot: the sequencer processes transactions in the order they arrive, and paying more moves you nowhere. Every habit built around priority fees has to be replaced with something else.
What gets rewarded instead
Latency. Not the network's — yours. The time between deciding to act and the transaction leaving your machine is the only variable you control, and it is made almost entirely of things that are avoidable.
- Signing before the moment rather than during it
- Never waiting on a receipt inside the critical path
- Computing quotes locally instead of asking the chain
- Sending in parallel rather than in sequence
The default that costs eighteen blocks
Most Ethereum libraries poll for a transaction receipt on a fixed interval — four seconds is a common default. That is entirely reasonable on a chain with twelve-second blocks and completely wrong inside a three-second window.
In our own early runs that default alone put eighteen blocks between the launch and the buys. The code was fast; it was simply asleep. Polling by hand at fifty milliseconds took the same sequence down to three blocks.
What stays outside your control
Ordering inside a block belongs to the sequencer. In one run, ten buys landed in the same block but not in the order they were sent — the sixth wallet received more than the third.
So the honest claim is a fast, tax-exempt entry, not a guaranteed first fill. Anyone promising the second thing on a chain like this is promising something they do not control.
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