Evidence row 18272

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://health-api.tail11a58f.ts.net/echo"
    ]
  ],
  "name": "x402-testbed",
  "owner_address": "0xb92a731c08bf78f5ec87e8b48c74abf685e84029",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb92A731C08bF78f5EC87E8b48C74aBf685e84029",
        "scheme": "exact"
      }
    ],
    "description": "x402 Testbed: GET variant of POST /echo for directory probes and simple clients. Query params: expectStatus (set 500 to test post-settlement failure). Returns what it received.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "expectStatus": 200
            },
            "type": "http"
          },
          "output": {
            "example": {
              "echoed": null,
              "receivedAt": "2026-10-20T15:35:23.024Z"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "expectStatus": {
                      "description": "Set 500 to test post-settlement failure",
                      "type": "integer"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-26T06:47:50.555Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-26T06:47:49.487Z"
    },
    "resource": "https://health-api.tail11a58f.ts.net/echo",
    "serviceName": "x402-testbed",
    "tags": [
      "x402",
      "testbed",
      "echo",
      "developer-tools"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "x402 Testbed: GET variant of POST /echo for directory probes and simple clients. Query params: expectStatus (set 500 to test post-settlement failure). Returns what it received."
}

What the leaf hashes

{"body":"59df0bb3338933cbc6717bf3b624fa158a28aa3d907d5bd94cee11229a8994a7","id":18272,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025328798768,"prev":null,"subject":"x402_bazaar:https://health-api.tail11a58f.ts.net/echo","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. 0xaf0a52fcfd3d6f1728669ed050945d08f731dfff9508ea566a9007e9b93ff9a5
2. 0xb4808a44961444b827d524534f03819ae490a5bf6adbe9175c4d1aa5a4d0a13b
3. 0x7f03111ecfc5dfe150677ab6fc1b79e25901ae3956ee9201ffda07949024147f
4. 0x706c4bf955562188a4026abf07a2b57df357780a68a544156a82f196453a1db9
5. 0x69cda93a21ac34e373acd7043f2f360c2cea9512b70b916eb499a0e8c10439d5
6. 0x245f4aa804e07cbf12795f76e6a4cfc7909b429ddf39e2591b39ee8230bb66ca
7. 0xe8a4d12672cd3596cfbb43f872454682473c3e9cf03ea412192e1e9db645918c
8. 0xc4467f6f91c72b18ff817007efd0ef2b7969e758ea47595c67aba5b3a882b646
9. 0xac97b06775665004c51ae66ecc29bd1a92b27f193962906447c8a24f5640bab8
10. 0x3107fa81688f3046afda2f948045d364316b247469a8a303ed99d9184e826a89
11. 0x863ea2425c8cc958ae125e95c3e3170c9ac576a8c72849cb3f596e616b6fd6a8
12. 0xd17258d4f01d074dcaf38f36218b36058144c3d50c3b488953a815c54d6674d2
13. 0xe292b5a99219f136bce6647ce74b21240a1c7331d2475b1839220fd363c94217
14. 0x3b4dba7d874fc323b0a364140a9c60f37bf547fe671897653118a9873fe03420
15. 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae