Evidence row 2202619

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402.halowerk.com/listing/doctor"
    ]
  ],
  "name": "HALOWERK x402werk",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "100000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "asset": "USDC",
          "assetTransferMethod": "eip3009",
          "eip712Domain": {
            "chainId": 8453,
            "name": "USD Coin",
            "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "version": "2"
          },
          "name": "USD Coin",
          "network_name": "Base Mainnet",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
        "scheme": "exact"
      }
    ],
    "description": "One unpaid probe of a public https x402 route; returns prioritized findings with fixes: 402 and PAYMENT-REQUIRED, x402 v2, accepts, payTo checksum, resource.url, description limit, bazaar example and schema, header size, /.well-known/x402, llms.txt, openapi, MCP payment form, CDP listing, delisting risk. Never pays.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "method": "POST",
              "url": "https://stack.halowerk.com/stack"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "cdp_listing": {
                "listed": "no"
              },
              "delisting_risk": {
                "blocking_findings": [
                  "resource_description"
                ],
                "level": "high"
              },
              "findings": [
                {
                  "fix": "Cut it to at most 500 characters.",
                  "id": "resource_description",
                  "message": "resource.description has 742 characters; limit 500.",
                  "priority": 1,
                  "severity": "error"
                },
                {
                  "fix": "Trim PAYMENT-REQUIRED.",
                  "id": "header_size",
                  "message": "Response headers total 9120 bytes.",
                  "priority": 2,
                  "severity": "warning"
                }
              ],
              "summary": {
                "errors": 1,
                "infos": 2,
                "passed": 15,
                "warnings": 1
              },
              "verdict": "needs_fixes"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "example_body": {
                      "description": "Optional JSON body for the single unpaid call (body methods only, max 16 KB).",
                      "type": "object"
                    },
                    "method": {
                      "default": "POST",
                      "description": "HTTP method of the paid route.",
                      "enum": [
                        "POST",
                        "GET",
                        "HEAD",
                        "PUT",
                        "PATCH"
                      ],
                      "type": "string"
                    },
                    "url": {
                      "description": "Public https URL of the paid x402 route to diagnose.",
                      "maxLength": 2048,
                      "minLength": 12,
                      "pattern": "^https://",
                      "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": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-02T14:49:27.961Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-02T14:49:27.424Z"
    },
    "resource": "https://x402.halowerk.com/listing/doctor",
    "serviceName": "HALOWERK x402werk",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "One unpaid probe of a public https x402 route; returns prioritized findings with fixes: 402 and PAYMENT-REQUIRED, x402 v2, accepts, payTo checksum, resource.url, description limit, bazaar example and schema, header size, /.well-known/x402, llms.txt, openapi, MCP payment form, CDP listing, delisting risk. Never pays."
}

What the leaf hashes

{"body":"9c762e45686e905c524d2306f121d4a8b3b21041a5f6c810495975722b098451","id":2202619,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646871777493,"prev":null,"subject":"x402_bazaar:https://x402.halowerk.com/listing/doctor","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0x292ab809021ecd2fc82c31e858130a052baa67b840f2e6444ae737d4ccc33f65
2. 0x78faf8ebd993903146ae32c7b045affe4f8a81400a7f39425c09e0c9f7638536
3. 0x275c08cc64874687eb2ec9e9ebcc5d98fb9fa0d60510c5dc6eaf4994c5c62748
4. 0x4fd76b0d7b048e918f9f87a2727948e66a82edc83639fc11cdec52307b24faad
5. 0x820c7348c17243cec558a2c2a1ff0f2ba3984cb0c97f9deb453d03550d762cad
6. 0x6ab16d6f812f0b886f6c15b321a7b0429aba93d1997bb26a6dfd7c21b204fe03
7. 0x901c17ccafbe773358cf882cae9bd45698b06585aa297f766e9dfb01dbfc59f5
8. 0xecf905802d203da7068bf59efbfd7215aae4c7c501de84a4a16d56da97404d10
9. 0x52b1ffcea951b7ab9fcd58198f009814824ca8408632237ad415d1a837bc5d24
10. 0x8ce3e0e14dd61c9d96704638580f9f893033c76f064088d4f89f960119c613f6
11. 0xb57418cb2d892d46b92bffda4e9aa264842b78d00f16763f44efcd34bdeed9ea
12. 0x3a4530c387a03c52b7afbd39200548993215a4cb14f3e53ead9b1517fcfe0b2c
13. 0x51e311ca2900bdc02d33f863997ecf605beee83455e2af17106fa126c029645d
14. 0x8d443fc9063dd9f00f5f7476005a8915a8222f4611f5601e212bafbdbbdd6165
15. 0x9cb76be6423133397c3da69f801d6af35dcce77b458aa17bd796c877ed7bc8fd
16. 0xd42916b5c6441e9c8d91ff91715af1489cb83dee26d47e7da107caa4d2a68b65
17. 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af