Evidence row 1262221

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": "2026-10-30T01:19:18.16Z",
    "quality": {
      "l30DaysTotalCalls": 10,
      "l30DaysUniquePayers": 8,
      "lastCalledAt": "2026-10-30T01:19:17.917Z"
    },
    "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":"a1b8bf36acc38009f630037eaa1232cce1f0c3dc660e493bdb0f58cd66ffa51b","id":1262221,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385521065496,"prev":1039023,"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 2026-10-30 (243099 rows).

1. 0x300cc307d68fbcc159a2f68223f62d33ed742dbc038bfd03c06cddfcd42bf1fa
2. 0x04d33d8d7e122b87b65d5c1d0e30cdf268c91ba18d005365715cb45aa581a507
3. 0x29a068946c230dfe0f655a5c528c940bc83186dbb24f4e38c7ca46ad454f3647
4. 0x9b8668630149dff543c52c2d6f7b674fa12cba6e85236d0703119e20e62ec8d6
5. 0x7be84229eb85da95707e3e99c93846544a3836aa536e9438bd9a68ab5cbd4df4
6. 0x92f0a70beda46699c845e42114d82737ea80e98cbc113a126ce0a82ed77e5cc1
7. 0x36ce734548e135b5272e0058fcb6a98b9af40bd7c9bcfaff93bc4706e66a0dc8
8. 0x880f5f8f3e80c2a5f2cc451f368ddbd30bafdb3fb3bedc7d85eac1210d985708
9. 0x930cff3cb2b903060363eafeb34518f3a2cfd2d2e08c7d99d4e38a76559bccf4
10. 0x39fbc2fd0465f84dd3b10c470a7e740b60d65b1e0973443209cb561861502de8
11. 0x30340eef2e6d8a89d3620d317bfbb1d4b9fbce4e9db856b3f7ed803dcdcb9555
12. 0xd658f5ebf53f5f4d9e144502aadc553401a7b6fa9aa8d2999117181fae286e99
13. 0xa731ea0a53ef052371d2f4f5c1c8f41649e1bf40a860f84529dbcb9601498e0d
14. 0xc1162ffd606c8e0e72ce94a16332c19bf77c27df8032f71c95d5690246968bbe
15. 0x6222037db785cc797fc8809e52e551d945c928d389b7ac947c037fb9af818562
16. 0x50ca74d7c8f26a46e9c3b8fb5e7f9ebcdfdcc1b7c863db3b6d2b7c12e24ca66f
17. 0xb0c9ef42e725578748f3119c9dbebf2fc437266bda013df29f98ed3ebe621403
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861