Network & Protocol Guides
Reading Bittensor Subnet Hyperparameters over RPC
A practical guide to reading Bittensor subnet hyperparameters over Subtensor RPC, decoding the returned struct, and caching values safely.
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Network & Protocol Guides
Ethereum Block Retrieval: Full Transactions, Hashes, and Uncles
A technical deep-dive into eth_getBlockByNumber, eth_getBlockByHash, transaction count methods, and the deprecated uncle surface — with runnable Node.js examples and a reproducible measurement method.
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Simulating Substrate Calls with system_dryRun Before You Submit
Use Substrate's system_dryRun to apply a call against current state without committing it, parse the returned weight or DispatchError, and decide whether to sign and submit.
Read articleReliability & Consistency
Solana getBlockProduction: Block Production and Skip Rate over RPC
Use Solana's getBlockProduction RPC to compute per-validator block production and skip rate over a slot range or the current epoch, and interpret the result for monitoring.
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Solana minimumLedgerSlot: Probing Node Data Availability
Learn how to probe a Solana RPC node's oldest retained slot with minimumLedgerSlot and route historical reads safely.
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eth_getCode: Reading Contract Bytecode Correctly
Learn how eth_getCode returns deployed EVM bytecode, why '0x' is ambiguous, and how to distinguish code from state reads across proxies and EIP-7702 delegations.
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eth_getRawTransactionByHash: Raw Transaction Bytes
Learn how eth_getRawTransactionByHash returns raw RLP or typed-envelope bytes, how to verify them against the transaction hash, and how to re-broadcast safely.
Read articleReliability & Consistency
Fingerprinting the RPC Node You Are Talking To: chainId, net_version, clientVersion
A pre-flight identity check for any Ethereum RPC endpoint: verify chain ID, network ID, client version, and genesis hash before trusting it with production traffic.
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Solana getVersion and Runtime Features: Probing Node Capabilities
Learn how to probe a Solana RPC node's advertised software version and active runtime feature set to verify compatibility before relying on new methods.
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Sui Object Versions and Lamport Ordering: Optimistic Concurrency Over RPC
Learn how Sui versions objects with a Lamport clock, why stale-version transactions abort, and how to build RPC clients that detect version changes before signing.
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