Technical explainers, troubleshooting playbooks, and infrastructure guidance shaped by the questions developers search for.
Learn how Ethereum state proofs work and how to use eth_getProof to fetch and independently verify account and storage values over JSON-RPC.
Read articleLearn how to manage EVM nonces correctly with eth_getTransactionCount to avoid nonce too low, stuck transactions, and concurrency issues.
Read articleLearn how to migrate from deprecated Solana getConfirmed* RPC methods to the canonical getBlock, getSignaturesForAddress, getTransaction, and getSlot family with explicit commitment.
Read articleLearn how to simulate Sui transactions via JSON-RPC to catch object version conflicts, gas issues, and command failures before paying gas.
Read articleLearn how to decode Ethereum revert reasons and custom errors from JSON-RPC responses, including Error(string), Panic(uint256), and custom error selectors.
Read articleLearn to use eth_call's state override set to simulate calls against modified state—no transaction needed. Includes viem/ethers examples.
Read articleDecode Hyperliquid /info and /exchange order rejections: margin, risk limits, open interest caps, oracle price checks, and post-only guardrails.
Read articleLearn to decode Polkadot RPC 1010 Invalid Transaction tags and dispatch errors, with a runnable @polkadot/api script and fix checklist.
Read articleLearn to read and fix Solana simulateTransaction preflight errors: decode instruction index, program ID, and custom error codes from JSON-RPC logs.
Read articleLearn how to query historical Base state and logs over OP-Stack JSON-RPC, what an archive node is on Base, and how to verify past balances, storage, and proofs with eth_getProof.
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