Transaction Evidence Brief
Base mainnet

Deterministic transaction evidence

Inspect a Base transaction.

Status, gas, recipient type, token events, approval warnings, decode boundaries, and source links in one stable JSON response.

$0.05 USDCsingle brief$0.25 USDCbatch reconciliation, up to 25Preview is free

Base mainnet only. Input must be a 32-byte transaction hash.

Response

ready
{
  "schema_version": "2026-07-22.1",
  "chain": {
    "name": "Base",
    "caip2": "eip155:8453",
    "chain_id": 8453
  },
  "transaction": {
    "hash": "0x904a17eb77255e1208eea43f3519ec6e5c04c417a21453bb239e1a6de0c8a797",
    "block_number": 48992733,
    "status": "success",
    "recipient_type": "contract"
  },
  "gas": {
    "paid_wei": "0",
    "paid_eth": "0"
  },
  "token_events": [],
  "flags": [
    {
      "code": "unknown_selector",
      "severity": "info",
      "detail": "Selector is outside the small built-in registry"
    }
  ]
}