Evidence row 63755

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agents.supremeai.ca/v1/preflight"
    ]
  ],
  "name": "supremeai",
  "owner_address": "0xb65c6f9187195f4f9215b285d67d798b0162ca31",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb65c6F9187195f4f9215b285d67D798b0162cA31",
        "scheme": "exact"
      }
    ],
    "description": "Check an x402 endpoint BEFORE paying it. Makes one unpaid request (never sends money), decodes the 402 terms, and verifies: the asset is a real USD stablecoin on that network, the price in USD vs your max_price_usd cap (default $0.50), payTo is a sane address (and matches expected_pay_to if given), HTTPS and certificate validity, redirects, and domain age. Returns safe_to_pay, a risk level, findings, and the cheapest acceptable payment option.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "max_price_usd": 0.05,
              "url": "https://agents.supremeai.ca/v1/validate"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "findings": [],
              "payment_options": [
                {
                  "asset_symbol": "USDC",
                  "network": "eip155:8453",
                  "pay_to": "0xb65c...2ca31",
                  "price_usd": 0.002,
                  "scheme": "exact"
                }
              ],
              "recommended_option": 0,
              "risk": "low",
              "safe_to_pay": true,
              "summary": "Looks OK to pay ($0.002 USDC on eip155:8453).",
              "url": "https://agents.supremeai.ca/v1/validate"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "body": {
                      "description": "JSON body to send with POST probes",
                      "type": "object"
                    },
                    "expected_pay_to": {
                      "description": "wallet you expect to be paid",
                      "type": "string"
                    },
                    "max_price_usd": {
                      "description": "highest acceptable price, default 0.50",
                      "type": "number"
                    },
                    "method": {
                      "description": "GET or POST; default tries GET then POST",
                      "type": "string"
                    },
                    "url": {
                      "description": "x402 endpoint you intend to pay",
                      "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": {
                  "properties": {
                    "checks": {
                      "type": "object"
                    },
                    "findings": {
                      "type": "array"
                    },
                    "payment_options": {
                      "type": "array"
                    },
                    "recommended_option": {
                      "type": [
                        "integer",
                        "null"
                      ]
                    },
                    "risk": {
                      "enum": [
                        "low",
                        "medium",
                        "high",
                        "unknown"
                      ],
                      "type": "string"
                    },
                    "safe_to_pay": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "summary": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-24T20:32:58.014Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-24T20:32:57.787Z"
    },
    "resource": "https://agents.supremeai.ca/v1/preflight",
    "serviceName": "supremeai",
    "tags": [
      "x402",
      "security",
      "payments",
      "trust",
      "pre-flight"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Check an x402 endpoint BEFORE paying it. Makes one unpaid request (never sends money), decodes the 402 terms, and verifies: the asset is a real USD stablecoin on that network, the price in USD vs your max_price_usd cap (default $0.50), payTo is a sane address (and matches expected_pay_to if given), HTTPS and certificate validity, redirects, and domain age. Returns safe_to_pay, a risk level, findings, and the cheapest acceptable payment option."
}

What the leaf hashes

{"body":"a5809e1e1f2d04f99dd3ef25ad5f271b5c7d9725fa98580717567c050c870ce1","id":63755,"kind":"listing","method":"baseline/1","observed_us":1793025455389057,"prev":null,"subject":"x402_bazaar:https://agents.supremeai.ca/v1/preflight","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. 0x9defca315f671d64cfdd6abefa758dbd48c34904f03e6a62e2a8ced71c0b7184
2. 0x19938b1f063bea9b0c19a671234accebf3595eb724c12730bfae1eb896dc88bd
3. 0x172eb71d0d5a06bb893907c6c968239880521c7e2aaeb59f80e44eb32378126f
4. 0x6b75612518e00cce39ca3b168cf88850e2b198f424fecd9e0a5e62fe18f49263
5. 0x450633509269d8ac61dd07f8e7da27ba02f6d91f6c7e96dd03a74971411fee20
6. 0x7e560d234cd1ed2f12750043f3d4ebc74fe95628a01dbf4607a5592ecc834624
7. 0xb63cf205252e23ad36ae3e0e07fc47a43e12ece2015631a9529791474184be24
8. 0x7bfd405c6fefed64ea1296cd04281dd7f008d90ca6acfee880715cf6c96e745e
9. 0x49c14533a12c09ed4a3ff0275a70f2680d5bbb359844fe1808c7b11e12e87d18
10. 0xdbcb6bb00700465648e25b93c41af8658c581916f65193d2b15aedd3a021f631
11. 0x351390dbbaa59bf254610c44de6ad39906ad2c226e8f737f7d774c0b9d382abf
12. 0x73cca5e5ba14c0aaa799d5324b89eb846e3c5546aab3b2cda0c05c5eeaa03168
13. 0x99a4e0f8b23989f58b564c1b6e419578b4388f6e0dbf6e50177c1bd476302d0e
14. 0x6713795704ddd9c528d421fadd9cc96b0200a4ddbba84f88e718d4968dde888b
15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae