18 posts.
Ronin became an OP Stack layer 2 in May 2026. Measured: 2 s blocks, a fixed 20 gwei base fee, a 200-block getLogs cap, ~23 min to finalized, and no pre-migration history.
Read →Kava runs an EVM beside a Cosmos SDK chain. Measured: 5.7 s blocks, instant finality, a 10,000-block getLogs cap, ~100 blocks of state, archive routing.
Read →Aurora is an EVM running as a contract on NEAR. Measured: 0.6 s blocks, instant finality, a 2^53 gas limit, zero cumulativeGasUsed, NEAR receipt hashes.
Read →opBNB is an OP Stack L2 settling to BNB Smart Chain, with 250 ms blocks. Measured finality, fees, the 50,000-block getLogs cap and a stale-finality trap.
Read →Shibarium runs Polygon PoS's Bor and Heimdall with BONE for gas. Measured block time, finality, getLogs range and archive, plus the quirks it inherits.
Read →Katana (chain ID 747474) is an OP Stack L2 with ZK proofs and 1-second blocks. Measured finality, fees, getLogs limits, archive access and code.
Read →Since October 2025, Kusama balances live on Asset Hub, not the relay chain. What the relay RPC still serves, finality, runtime upgrades and code.
Read →How to use Cronos EVM over JSON-RPC — chain ID 25, ~0.42 second blocks with instant finality, a 10,000-block eth_getLogs cap, historical state pruned after ~100 blocks, and no debug or trace namespace.
Read →How to query Babylon Genesis over RPC and LCD — CometBFT 0.38.22 on chain bbn-1, ~9.6 second blocks, 68 validators, blocks filled with finality signatures, why tx_search refuses ranges, and the pruning floor that gave three different answers in six calls.
Read →How to query HyperEVM over JSON-RPC — chain 999, ~1s blocks, a near-fixed 0.1 gwei base fee, a 1000-block and 1 MiB eth_getLogs cap, no WebSocket, and the one that will cost you money: state methods accept a block number and then ignore it, so historical reads silently return the latest state.
Read →How to query Neutron over JSON-RPC — CometBFT 0.38 on chain neutron-1, why there is no numeric chain ID, the header fields that disappeared in 0.38, a tx_search that times out instead of answering, a pruning floor that differs between nodes, and a block time that measured 7s this week against a 2s baseline.
Read →How to connect to Arbitrum One over JSON-RPC — chain ID 42161, why the block gas limit is a sentinel value, what safe and finalized actually mean here, zero priority fees, and where archive reads stop working.
Read →How to connect to Ethereum Classic over JSON-RPC — chain ID 61, proof-of-work still live, why blocks carry no baseFeePerGas, what carries over from Ethereum unchanged, and where historical reads stop working.
Read →How to connect to Gnosis Chain via JSON-RPC — the dual-token model (xDAI + GNO), DAI-bridged stablecoin gas, consensus via GPOS, and what makes it different from other EVM chains. Includes production setup and fee optimization.
Read →How to connect to Polygon zkEVM via JSON-RPC — the Type 1 prover, equivalence testing, bridge architecture, and what makes it different from every other zkEVM. Includes production setup and fee optimization.
Read →How to connect to Tron via JSON-RPC and HTTP — TRC-20 token transfers, smart contract interaction, energy and bandwidth, and how to pick a Tron endpoint for production use.
Read →How to connect to Solana via JSON-RPC — the methods you'll use daily, commitment levels, WebSocket subscriptions, account parsing, and how to pick an endpoint that handles real traffic.
Read →Everything you need to connect to Ethereum via RPC — the methods you'll actually use, how to set up viem and ethers, WebSocket vs HTTP, archive access, and how to pick an endpoint that won't fall over under load.
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