Parameters2
Body Parameters
hashstringexample:ab0898397c86fbf97c99c6f8b29e55ab697315705777ee1d106e2dcb9bd686b3default:nullnotestringexample:vendor approval batch 2026-Q2default:null
Service overview
Verify a signature over (input_hash, output_hash, decision) and dual-chain anchor the result — $0.01 USDC
API surface
9 crawlable routes
hashstringab0898397c86fbf97c99c6f8b29e55ab697315705777ee1d106e2dcb9bd686b3nullnotestringvendor approval batch 2026-Q2nullwalletstring0x8589427373d6d84e98730d7795d8f6f8731fda16nulldecisionstringAPPROVEDnullinput_hashstringab0898397c86fbf97c99c6f8b29e55ab697315705777ee1d106e2dcb9bd686b3nulloutput_hashstring121bff3514725274e35bf3407fec31b5bbf458ee89ae8b75f3a01492f8a9ecefnullschemestringeip191nullsignaturestring0x...nullsymbolstringETHnullcalldata_hexstring0xa9059cbb000000000000000000000000ab5801a7d398351b8be11c439e05c5b3259aec9b0000000000000000000000000000000000000000000000000de0b6b3a7640000nullchainstringethereumnullwalletstring0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045nullchainstringbasenulltx_hashstring0x7fb4d107d8c1b65b33851434c6fd178b682a143904a2bfa89ff2c1fa70974e96nullnamestringvitalik.ethnullinputstringnext Tuesday at 3pmnulltimezonestringAmerica/New_YorknullMarketplace context
Service
OATP · tx_explainer — Fetch a Solana transaction by signature and return a human-readable explanation: programs invoked, token balance changes, fee (SOL + USD), and a one-line summary.
Service
Exa /contents endpoint
Service
Decode and explain any EVM blockchain transaction across 11 chains (Base, Ethereum, Arbitrum, Optimism, Avalanche, Polygon, Mantle, Monad, Plasma, BSC, Hyperliquid). Get a human-readable summary of swaps, transfers, approvals, DeFi interactions, and more.