Learn the internals behind Sentry: slots, blockhashes, fees, failure handling, RPC consistency, concentrated liquidity, and multi-rail submission.
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Solana advances in slots of roughly 400 ms. Each slot has one scheduled leader, and every transaction must reference a recent blockhash that expires.
On Solana an account only exists once it holds lamports. Test clusters hand out free SOL through a faucet so you can experiment without risk.
Build, simulate, sign, send, and watch a real transaction climb from processed to confirmed to finalized, with timings for every step.
Leaders order transactions partly by what they pay per compute unit. Reading the fee market lets you pay enough to land without overpaying.
Most failed transactions fall into a handful of classes. Detect the class from simulation, apply the matching fix, and retry automatically.
Your RPC node is your window onto the chain. Nodes lag, commitment levels disagree, and the head moves every 400 ms. Measuring this prevents stale reads.
Orca Whirlpools concentrate liquidity into price ranges called ticks. Quoting a swap means walking those ticks and accounting for fees and slippage.
Sending one signed transaction through several paths raises the odds that a leader sees it, with no risk of double execution.