Evidence row 124075

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

Kind: listing
About: source_record x402_bazaar:https://webwache.halowerk.com/v1/canonical-change-compare
Recorded: 26 Oct 2026, 14:40 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 0b9d9e439b730356905b118ddc811f836556865ff9e42b323455b3c7a30f7edf
Leaf: 0x7e8849eb0716431b5acad7d1c405b1db703a570f70b30ce1a06fc81dce551abf

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://webwache.halowerk.com/v1/canonical-change-compare"
    ]
  ],
  "name": "webwache.halowerk.com/v1/canonical-change-compare",
  "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 comparison 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": "2026-10-21T02:02:28.02Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-21T02:02:27.486Z"
    },
    "resource": "https://webwache.halowerk.com/v1/canonical-change-compare",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Canonical change comparison 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":"0b9d9e439b730356905b118ddc811f836556865ff9e42b323455b3c7a30f7edf","id":124075,"kind":"listing","method":"baseline/1","observed_us":1793025624072115,"prev":null,"subject":"x402_bazaar:https://webwache.halowerk.com/v1/canonical-change-compare","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).

0x7e884f82e6074c6d4fd60c24a9306b3215dd66ca27ea7315b382797b873a890c
0x043056e2360fc83a38ba5d5b64981b7decf61eecfff8001f6dd24ce4307a6ca7
0x1754fb6e4d1c076fb7c1fd3d6230845a059ac8d5ada97af7ca4a9f443d0e728f
0xe8ebb1eec46efd8b963e636086f6f9dfcae408b3df6f9016b5aa4e639394dc98
0xda82fdbc7a8a47760d1929b961c9d76b8e56b54a1d5b3cee48fe4854765e78ec
0xb0b6d6be58d7b9166da035d80da952a16ad05c0b5199e85309911eee344f4f9a
0x675eb4c38742a3b434e55d51485d13b12129758496ce56003726fdad1c00037b
0xddfac8b5b02c9a2aabb70c6947b5bd9addf8fa29f990fad776a080c758f3ff9a
0xef443be02dc09c4bff5d7688decd47a16ffb60718d4ad8cbbec72e8c170e668a
0xfd7f00031b4432edd469882d277184d679cf4192e96f29d0d9b09eaa1702106e
0x86993f34ffd04a19214c4b442a83218e78811798750015024990bf574868d9e8
0xab729e4203b650f2a3c15efd6fd44eb2482232373bc1de662fd9d496869eb2d3
0x0bffb634300aa5609bddaa79e8d31d7cde36c0a5a4465472f809b9f5287e40d2
0x7721d38652b6444b18e1193824e50490ade04851ce6221771f6e374c4527d80f
0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON