Evidence row 1039023

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agents.supremeai.ca/v1/health-check"
    ]
  ],
  "name": "supremeai",
  "owner_address": "0xb65c6f9187195f4f9215b285d67d798b0162ca31",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb65c6F9187195f4f9215b285d67D798b0162cA31",
        "scheme": "exact"
      }
    ],
    "description": "Probe a public HTTP(S) URL and report availability: up/down, HTTP status, and latency in ms. Use it to check whether another paid API or x402 service is alive before spending money calling it. Public internet targets only.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "url": "https://example.com"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "latency_ms": 42,
              "status": 200,
              "up": true,
              "url": "https://example.com"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "url": {
                      "description": "absolute http(s) URL",
                      "type": "string"
                    }
                  },
                  "required": [
                    "url"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "error": {
                      "type": "string"
                    },
                    "latency_ms": {
                      "type": [
                        "integer",
                        "null"
                      ]
                    },
                    "status": {
                      "type": [
                        "integer",
                        "null"
                      ]
                    },
                    "up": {
                      "type": "boolean"
                    },
                    "url": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-28T22:56:40.228Z",
    "quality": {
      "l30DaysTotalCalls": 9,
      "l30DaysUniquePayers": 8,
      "lastCalledAt": "2026-10-28T22:56:39.969Z"
    },
    "resource": "https://agents.supremeai.ca/v1/health-check",
    "serviceName": "supremeai",
    "tags": [
      "monitoring",
      "uptime",
      "agent-ops",
      "health"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Probe a public HTTP(S) URL and report availability: up/down, HTTP status, and latency in ms. Use it to check whether another paid API or x402 service is alive before spending money calling it. Public internet targets only."
}

What the leaf hashes

{"body":"9d9bd167d8cfce5e78c1eedd9380ada08cf345de46751544336532038019bcd3","id":1039023,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793298277756723,"prev":63754,"subject":"x402_bazaar:https://agents.supremeai.ca/v1/health-check","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-29 (242798 rows).

1. 0x146c8a000ab35fd2d82398aa235b843dd45064ef665cd37f80459e5f44134ec3
2. 0x202a92b6b88b10bbd518e5a9a047b7b70d4fbdb68657783b8712a3bda5e7cc0e
3. 0x84ba31bfd7444a261cdb01022093e71bc2601a8b81df1c7f2fad4e6fcdbb083b
4. 0x9ee0aa7144696e3f3d87cb335dbb5a66c53a69ced606222abfd6a970460b6181
5. 0x129f6cf254d2202477167b450b3fd7373bb4542b924296098a3e371bc646d302
6. 0x27bdb08913009c519b37a0052010c5ebfc24b170806b5427b88c60b57aadb99f
7. 0xe35c9eaefc2cc6b732051602a6ec05e1d22d95fa5669eb25d94258f5e283aa96
8. 0xf97c4b43c5ca1a49a075cdc375d3b6cf5ba41548908de2144dc6bc54599c8df3
9. 0x3d05f2ec40feeeb5b5ba9e8103b8494c2de1ab6813dc17dbafa5d20004ac6359
10. 0x592df8b66e050ca20e383d77d04f74bd8a8040764e2e1d045b2b55a12c5ca49e
11. 0x58962753bfeff8c4e3663c417d2b7ea04818932f9fc2a5f8a10ceb173e8432cb
12. 0xb8f119e9ad494786e4c14495d773403072d99e028eca7f32d5755c33821e77e8
13. 0x9f7c7f82c1751c52f0abfa61fd04ab49e1074f7dabe66661cd391efb1c30f9ba
14. 0x084c8874a1d9f8527c9c50048abe328afb50aa4926cc4b9639898f00eef5101f
15. 0xb4cbfd07748aa7d27896e5517d69e2e77024b97a1cfe1755f9af8471ad993bde
16. 0xa0a7723889a4c15b3e0bec353fa8dbcaec6c71cf35bb6c346415ad3e664df6a6
17. 0xd76435ead496863d8b0bfab3434f54cd11da3c49d104fc4064b9cb3381567bbd
18. 0xd56e61af23709ed9f460471e3c08400c0142ee83e1fd9057e46350d12edf9c07

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1