Evidence row 3064636

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://chainhilt.ai/api/v1/predict/polymarket/orders/construct"
    ]
  ],
  "name": "chainhilt-x402",
  "owner_address": "0xdece8e839414e4a99213c658abbd2294d5bd42b0",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xdECE8E839414E4a99213C658ABbD2294d5BD42B0",
        "scheme": "exact"
      }
    ],
    "description": "Construct a prediction-market order; never submits. Needs a `credentialToken` from /predict/polymarket/credentials. Returns `construction` and a signature action the chainhilt wallet signs and POSTs to /predict/polymarket/orders/submit. Review orderSummary and warnings before signing: `estimatedBuilderFee` (ours) and `estimatedVenueFee` (Polymarket's) are pUSD on top of the principal. Errors: 400 invalid input, 401 invalid credentialToken, 422 order refused, 502 venue failure.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "account": "0xE4934BB19E0B97109033dBfDcCc6957E32F9Cc60",
              "credentialToken": "pcr1.…",
              "marketId": "512329",
              "orderType": "GTC",
              "outcomeTokenId": "111",
              "postOnly": false,
              "price": "0.42",
              "side": "buy",
              "size": "10",
              "walletType": "deposit_wallet"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "construction": {
                "constructionToken": "…",
                "orderSummary": {
                  "estimatedBuilderFee": {
                    "amount": "0.021",
                    "asset": "pUSD"
                  },
                  "estimatedVenueFee": {
                    "amount": "0",
                    "asset": "pUSD"
                  },
                  "limitPrice": "0.42",
                  "shares": "10",
                  "side": "buy"
                },
                "venue": "polymarket",
                "warnings": [],
                "wire": {
                  "expiration": "0",
                  "orderType": "GTC",
                  "postOnly": false
                }
              },
              "response": {
                "actions": [
                  {
                    "chainId": 137,
                    "data": {
                      "constructionToken": "…",
                      "credentialToken": "pcr1.…",
                      "typedData": {
                        "primaryType": "TypedDataSign"
                      }
                    },
                    "protocol": "polymarket",
                    "submitPath": "/predict/polymarket/orders/submit",
                    "type": "signature"
                  }
                ],
                "errors": [],
                "warnings": []
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "$schema": "https://json-schema.org/draft/2020-12/schema",
                  "additionalProperties": false,
                  "properties": {
                    "account": {
                      "description": "The signer EOA. With walletType deposit_wallet, the maker is its derived deposit wallet.",
                      "pattern": "^0x[a-fA-F0-9]{40}$",
                      "type": "string"
                    },
                    "credentialToken": {
                      "description": "Sealed venue credentials for `account` from POST /predict/polymarket/credentials.",
                      "minLength": 1,
                      "type": "string"
                    },
                    "expiresAt": {
                      "description": "ISO 8601 expiry: required for GTD, refused for GTC, at least 3 minutes out. Polymarket expires the order 60 seconds earlier.",
                      "type": "string"
                    },
                    "marketId": {
                      "description": "Polymarket market id from markets/search.",
                      "pattern": "^[A-Za-z0-9_-]{1,128}$",
                      "type": "string"
                    },
                    "orderType": {
                      "description": "GTC rests until filled or cancelled; GTD expires 60 seconds before `expiresAt`, Polymarket's security threshold.",
                      "enum": [
                        "GTC",
                        "GTD"
                      ],
                      "type": "string"
                    },
                    "outcomeTokenId": {
                      "description": "The outcome's `tokenId` from the market's `outcomes`; must belong to `marketId`.",
                      "minLength": 1,
                      "type": "string"
                    },
                    "postOnly": {
                      "default": false,
                      "description": "Only rest on the book, never cross on arrival. Default false.",
                      "type": "boolean"
                    },
                    "price": {
                      "description": "Limit price per share in pUSD, strictly between 0 and 1 (e.g. \"0.42\"), a multiple of the market's `tickSize`.",
                      "pattern": "^0\\.[0-9]{1,6}$",
                      "type": "string"
                    },
                    "side": {
                      "description": "Buy or sell outcome shares.",
                      "enum": [
                        "buy",
                        "sell"
                      ],
                      "type": "string"
                    },
                    "size": {
                      "description": "Shares, up to 2 decimals; at least the market's `minOrderSize`.",
                      "pattern": "^[0-9]+(\\.[0-9]{1,2})?$",
                      "type": "string"
                    },
                    "walletType": {
                      "default": "deposit_wallet",
                      "description": "deposit_wallet (default, signatureType 3) or eoa; the venue rejects plain EOA makers unless allowlisted.",
                      "enum": [
                        "deposit_wallet",
                        "eoa"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "marketId",
                    "outcomeTokenId",
                    "side",
                    "orderType",
                    "price",
                    "size",
                    "account",
                    "credentialToken"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "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"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1793712289/bazaar-icons/18d1fcf093fb95b4.png",
    "lastUpdated": "2026-11-04T15:18:23.834Z",
    "quality": {
      "l30DaysTotalCalls": 14,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-04T15:18:23.678Z"
    },
    "resource": "https://chainhilt.ai/api/v1/predict/polymarket/orders/construct",
    "serviceName": "chainhilt-x402",
    "tags": [
      "predict",
      "polymarket",
      "prediction-markets",
      "execution",
      "orders"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Construct a prediction-market order; never submits. Needs a `credentialToken` from /predict/polymarket/credentials. Returns `construction` and a signature action the chainhilt wallet signs and POSTs to /predict/polymarket/orders/submit. Review orderSummary and warnings before signing: `estimatedBuilderFee` (ours) and `estimatedVenueFee` (Polymarket's) are pUSD on top of the principal. Errors: 400 invalid input, 401 invalid credentialToken, 422 order refused, 502 venue failure."
}

What the leaf hashes

{"body":"440eac377c4c14485b5e323da9e2dbbab38d56653accff46ef47c02fdd0961f4","id":3064636,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793822230205459,"prev":2633592,"subject":"x402_bazaar:https://chainhilt.ai/api/v1/predict/polymarket/orders/construct","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-04 (424109 rows).

1. 0x00e749178c311138750cacb74ef2b8438f83fc08002a78081ebd428d5d04bee6
2. 0xf07a55b95d6099368c4eedc84a4570b6349c0b0c0d7f7aa4bbd0d9581bc908ba
3. 0x5f1fb6d47f177ad18ed116f3e5ff1671c0471ae979eb54dec4ea297aadf6a77c
4. 0x2ae01f38cb9aef356cefb307fbf5189b3eafff10589d57b47d72040ae9844877
5. 0x1ea761f3f86b4ba2926c78a927ab17972d8a554321d51b123eaa2592d77886d6
6. 0x52c591b8374e92f21d51fb8cce5fc145f763d584e917216e578193b309ade82c
7. 0x05aefb5298ddcd08670eb5ec7ee346e553efc5959a0b213dffaf3a5e19368ea7
8. 0xac79c528a3637c47b1a49bbaec441e93af9829ce26de97b25e0bc68b448f66bd
9. 0xa5f7681d44ae3c6c465289d4519ecbbaeaf096a7b24738cf74e3d9e87208a417
10. 0xfe0eb90037a06846ecb3dfb2dcd85055bd44cacc179e4689732aec20f711f0eb
11. 0x3ca663894b19dc1386a6405ef0319318723f1bc59e0a96009cc2d439ff577da2
12. 0x5d450a66dbe8077b96fa0205cd847d48ed87811c698170327682e08916e9cba7
13. 0x077044abf751548588467f863f5ce82b09c44907836a3f9f5c56cafdd3820ec5
14. 0x6a3416cf73ed4756d52640940225459d148cd46e589ccdf5cf8d39dc68c403bf
15. 0x25c6f3031e09eeef9fb0f5c010f6aa1605f7af5f1a8859ce4db5ae48d0598359
16. 0xcdac863807ea81d51a9ab718457637e91824fd377a06759901352d9a23933554
17. 0x01c26569ec8e231551522ab452fd5d417c3d66f29c7c76886a8ec295a18dd624
18. 0x02f64ca19e7d9b09718851d2ce3abf641982580de99411626d894607cf386cd5
19. 0x10067354f57fa0cd86b7423e67cc1c7d107d7c9c6823df5246c4fb63b60575e5

Day root

0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee

Chained

0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b

Published

On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345