Evidence row 124076

Observed 26 Oct 2026, 14:40 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://webwache.halowerk.com/v1/canonical-change-monitor
Recorded: 26 Oct 2026, 14:40 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: aa690247dc263e44d1082e65c25f3773ba1f086a1e9524523851739715d84a8c
Leaf: 0xb3392610738bd959fe322976fb33b8474fc673c83e080a09ce06bfc221d29fd4

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://webwache.halowerk.com/v1/canonical-change-monitor"
    ]
  ],
  "name": "webwache.halowerk.com/v1/canonical-change-monitor",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "currency": "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",
        "recipient": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
        "scheme": "exact"
      }
    ],
    "description": "Canonical change monitor plan fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "compare_url": "https://example.org",
              "context": {
                "environment": "production"
              },
              "target": "https://example.com"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "baseline": {
                      "additionalProperties": true,
                      "description": "Optional baseline returned by a previous snapshot call.",
                      "type": [
                        "object",
                        "null"
                      ]
                    },
                    "compare_url": {
                      "description": "Optional public comparison URL. Used by change and monitoring services.",
                      "maxLength": 2048,
                      "minLength": 3,
                      "type": "string"
                    },
                    "context": {
                      "additionalProperties": {
                        "type": [
                          "string",
                          "number",
                          "boolean",
                          "null"
                        ]
                      },
                      "description": "Optional non-secret correlation labels returned unchanged only in the request lifecycle.",
                      "maxProperties": 12,
                      "type": "object"
                    },
                    "target": {
                      "description": "Public HTTP(S) URL or domain to inspect. A bare domain is normalized to HTTPS.",
                      "maxLength": 2048,
                      "minLength": 3,
                      "type": "string"
                    }
                  },
                  "required": [
                    "target"
                  ],
                  "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"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-21T20:20:31.914Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-21T20:20:31.419Z"
    },
    "resource": "https://webwache.halowerk.com/v1/canonical-change-monitor",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Canonical change monitor plan fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed."
}

What the leaf hashes

{"body":"aa690247dc263e44d1082e65c25f3773ba1f086a1e9524523851739715d84a8c","id":124076,"kind":"listing","method":"baseline/1","observed_us":1793025624073114,"prev":null,"subject":"x402_bazaar:https://webwache.halowerk.com/v1/canonical-change-monitor","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).
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Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON