Evidence row 1262486

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402-gateway.ai/api/v1/ping"
    ]
  ],
  "name": "x402-gateway",
  "owner_address": "0x9d305938253c491f7259d437eff064418b3fdfa0",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x9d305938253c491F7259d437efF064418B3FDFa0",
        "scheme": "exact"
      }
    ],
    "description": "Paid ping — test the x402 payment flow end-to-end. Returns pong. Costs $0.001, exists so agents can verify their x402 wallet setup against this gateway cheaply.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {},
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-28T04:49:59.878Z",
    "quality": {
      "l30DaysTotalCalls": 9,
      "l30DaysUniquePayers": 6,
      "lastCalledAt": "2026-10-28T04:49:59.477Z"
    },
    "resource": "https://x402-gateway.ai/api/v1/ping",
    "serviceName": "x402-gateway",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Paid ping — test the x402 payment flow end-to-end. Returns pong. Costs $0.001, exists so agents can verify their x402 wallet setup against this gateway cheaply."
}

What the leaf hashes

{"body":"a2004cdc8d08cc30990725e30d125f2c5af639d584fb40076cec17f1dead8d57","id":1262486,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385563377304,"prev":751600,"subject":"x402_bazaar:https://x402-gateway.ai/api/v1/ping","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

1. 0x6818148fc8b4e6780a93fd0d34584d9785ef188711d81a018d01c8be28178cfd
2. 0x44c0376a1d0b9968567951348eaccb2d16c2e8b8cfb04cd5bbc19633b82fdbb2
3. 0xbec515e66a2226b3f43d87806439159e3c26ca9145474b063f2691feba1f66aa
4. 0x83835d12b82306b3c726a59abc2645bb55f21da36dc018dc81be24feba49cd2b
5. 0x528bceb7fb2878a9a08ce11ed79a3f4e4fe37ea626b20708467d66db89bf30a8
6. 0xa03ee6d4044fe331472315c420070eae7d980c0e230300929d9f9f415562c94b
7. 0x81e15c392701ffda91bee089c9b6ba48b1db88a8f868598073850db67cf1307f
8. 0xce6b30ff53730873e65affc5e3ca9d84ad383cad8641e785229e99f1229a174d
9. 0x54dfacd54675f280a03249d2c48b1bba38cc96b99bad81c9ad09b354b9157ef6
10. 0x337baa1d466aa1483075e5035653370786eb40c3d246a95e6b87a06bee38d88a
11. 0x7314eb8d486c6f6f39ed9dbb68aa77d705966364fae6521de4892165471556dd
12. 0xcaaa3309f1d893db387253365aba34f0bf59c573cef97ffc715e7a0da53b53bb
13. 0x8ce6a3a19daf96525814209e150e1fd875a37f28ce52951d53a32ccf708706c2
14. 0x8202f11cea96bc04aa8008604bab4ab58756d5320e52685eb327ac1bb08a0ee6
15. 0xdf25f5d38e3fb54d3e66e3bf876db529f619041e0d21f0bc35b80003418e3d9c
16. 0xdbaaffa44665d1fa60d33d2c4075bd87629b76d01a6ee63e621e78590303b56d
17. 0xffe660edb9e5c6e3449a49454634c3e7b2f9fe703e5697f723b021735647ab7e
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861