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Case studies

Private transaction submission for a searcher

How an independent searcher like “BlockRunner” would keep its transactions out of public view with AllenHark Relay.

An illustrative scenario. The firm is a composite, and this page reports no measured results.

Your transaction, in one straight stream, through the Relay gate and into the block that stands inside itAn abstract drawing of light on the page's dark ground. Faint streams of light, the chain's traffic, converge from the left and break off well short. One straight, bright stream, your transaction, runs the whole way into a small bright block that stands half inside a thin diamond gate.Your transaction, in one straight stream, through the Relay gate and into the block that stands inside itAn abstract drawing of light on the page's dark ground. Faint streams of light, the chain's traffic, converge from the left and break off well short. One straight, bright stream, your transaction, runs the whole way into a small bright block that stands half inside a thin diamond gate.

The challenge

BlockRunner finds backrun and arbitrage opportunities. When it sends through public RPC, its transactions are visible before they land, and competitors copy them or get in front of them.

It needs a path to the leader that does not advertise what it is about to do.

The setup

BlockRunner sends signed transactions and bundles to AllenHark Relay over QUIC. The connection stays open, so once it is warm, sending a transaction is one stream write with no new handshake.

The Relay forwards each transaction to the current and upcoming leaders instead of through gossip. It is paid per transaction: each one carries a tip inside it, from 0.001 SOL, to a Relay tip wallet. Once BlockRunner sends at volume, it moves to Relay Dedicated, a monthly plan, and whitelists the wallets that sign its transactions, so their sends carry no tip.

What changes

Its transactions are no longer broadcast on the public route before they reach the leader. We quote no win rates here, because none were measured for this scenario.

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