Evidence row 63754

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": "2026-10-23T22:46:52.877Z",
    "quality": {
      "l30DaysTotalCalls": 8,
      "l30DaysUniquePayers": 7,
      "lastCalledAt": "2026-10-23T22:46:52.644Z"
    },
    "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":"8e2c34082fdc7fd1c3f30b24e93ccf8bdd87300475a50356b1837299fed2f165","id":63754,"kind":"listing","method":"baseline/1","observed_us":1793025455387731,"prev":null,"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 2026-10-26 (296695 rows).

1. 0x2ad64f3cfb22878afac141a1b0bed9ef9c109e40b58824d879ae0cf1f2a671e8
2. 0xb1d3dcf6131d5a7c6cfcf16c27124577a143071ce20f5fccf9b82f1e2f070ecb
3. 0xc1111a4d113c6b0f49992b78afb2d33de44256256e7434b9b035a98ac285725d
4. 0xed8f0d5a016365cd0b93c6d9ae647fa0d70525e1ef1251e290df701c3e9969d2
5. 0x598b4d76bc61bc0263aed9d2da5d67a9b5c02832c1e0ab074c63c514be93b98d
6. 0x61c3185a83b151dd8fb18443f79ba2d27f3cc8f0527ccd93055a412b5d745d6b
7. 0x30b0a0971dea70830d828a8d460b666636a1aac8dae282906af44230434b1cad
8. 0x04d9ba2a6288f5d0e84f22653a89f758278178aa9f4eb89acea6b03e4576514f
9. 0xe341697a43ca95743b9cc942785640ad8533ed91caea74fee2280c3fd45bddbd
10. 0xaa8650f76913e91404db3fdf03026f9761609152eb2e32f71c4d93058b86b406
11. 0xde76827525517f5c8aef4ffd7831eab09ee63757dcc2282bc64307fd6ee67ad1
12. 0xe8bf822fd6c66b233e3e13e08596e8fb41c1ed9b85be0e4d50cfc9b740c0e206
13. 0xb87e8b32cda179c9e632e227bbd8a6d1f6f61d9d81bb92dbd4dd835d2b3b5caa
14. 0x683955a5b2250ad50568d022a6580d8739b6aff1356779d72a773b088e7c289c
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae