# Sample: EVM settlement recompute (v1.3, --min-conf 100 --undo-scan USDC)

Input: tx 0x467eaa3b7bbbd36a146d2b63933a23ff2e0de485ad1f828fa89ed47c933b0345 (Base) — $0.06 USDC escrow-release payment verified before acceptance.

```json
{
  "verdict": "VALID",
  "tx": "0x467eaa3b7bbbd36a146d2b63933a23ff2e0de485ad1f828fa89ed47c933b0345",
  "block": 51711789,
  "status": "0x1",
  "from": "0x13c2e85715d8f6fcd48518eccd74ee1dc272ecb8",
  "to": "0x0000000071727de22e5e9d8baf0edac6f37da032",
  "gas_used": 117151,
  "transfer_events": [
    {
      "token": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
      "event": "Transfer",
      "from": "0xa779fc39c47a967b47292339641e821302eeb0da",
      "to": "0x6e9c17439cf81247965f9543645cfc8e746c4588",
      "raw_value": 60000
    }
  ],
  "finality": {
    "chain_head": {
      "number": 51773011,
      "hash": "0x632b34062518edb3598742ec6afabe63475ce97915f88a8d20b1a63a3d330a0d",
      "timestamp": 1790335369
    },
    "confirmations": 61223,
    "finality_tier": "L1_FINALIZED",
    "safe_block": 51772995,
    "finalized_block": 51772587,
    "min_conf_required": 100,
    "verified_at": "2026-09-25 11:22:50Z"
  },
  "reversal": {
    "token": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
    "payer": "0xa779fc39c47a967b47292339641e821302eeb0da",
    "recipient": "0x6e9c17439cf81247965f9543645cfc8e746c4588",
    "leg_raw_value": 60000,
    "scan_window": [
      51711790,
      51773011
    ],
    "counter_legs": [],
    "returned_raw_total": 0,
    "reversal_status": "NO_COUNTERLEG_FOUND",
    "truncated": false,
    "correlation": "amount-time",
    "correlation_note": "enumerated all 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 legs 0x6e9c17439cf81247965f9543645cfc8e746c4588->0xa779fc39c47a967b47292339641e821302eeb0da in window; matching which leg a return undoes uses direction+amount+window \u2014 evidence, not identity. A rail with a native correlation key would grade stronger."
  }
}
```

`finality_tier` is computed from the RPC's `safe`/`finalized` tag heights
shown alongside it — the grade is recomputable by anyone, not asserted.

The `reversal` block is the v1.3 axis: every USDC Transfer from the
leg's recipient back to its payer since the leg's block was enumerated
(61,222 blocks, chunked eth_getLogs, untruncated) and none was found —
`NO_COUNTERLEG_FOUND`. `correlation: "amount-time"` is deliberate: a
plain-token refund carries no field naming the leg it undoes, so the
match is direction + amount + window, which is evidence, not identity.
A rail whose refunds carry no enumerable surface at all would be graded
`correlation: "none"` — a check that cannot fail never reads green.