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Evidence row 1792408

Observed , by sync.x402_bazaar/1.

Kind
listing
About
source_record x402_bazaar:https://minty-sprout.onrender.com/v1/x402-preflight
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
f626a46e86e0c90bacc64a6ca895b93865f6a34a35fa23e98a787b5df75ce411
Leaf
0xc3979d78766afb5460b7fac542381c9745be513604228c9ba3a8e08be45c086c

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://minty-sprout.onrender.com/v1/x402-preflight"
    ]
  ],
  "name": "Foundry",
  "owner_address": "0x11dced0487ca3e7d9032029dcb302253ccf4e0de",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x11DCED0487cA3E7d9032029DCb302253ccF4e0DE",
        "scheme": "exact"
      }
    ],
    "description": "x402 preflight: checks a paid x402 endpoint before a payment is signed. Probes it unpaid, parses the v1 body or v2 PAYMENT-REQUIRED header, lints every accepts[] option (network, canonical USDC, EIP-712 domain name/version that signatures verify against, EIP-55 payTo, zero payTo, amount, timeout, testnet, resource host) and returns ok/warn/block with reasons. Input: URL, optionally 'POST <url>'. Deterministic, no LLM.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "input": "https://x402-preflight.nextill-pos.workers.dev/v1/preflight"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "bazaar_extension": true,
              "issues": [],
              "latency_ms": 1001,
              "method": "GET",
              "options": [
                {
                  "asset_symbol": "USDC",
                  "issues": [],
                  "network": "eip155:8453",
                  "pay_to": "0xB3cDDccEe6B150c8efFD55B961afc0Ecefe7f247",
                  "price_usd": 0.003,
                  "scheme": "exact",
                  "verdict": "ok"
                }
              ],
              "status": 402,
              "url": "https://x402-preflight.nextill-pos.workers.dev/v1/preflight",
              "verdict": "ok",
              "x402_version": 2
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "input": {
                      "maxLength": 8000,
                      "type": "string"
                    }
                  },
                  "required": [
                    "input"
                  ],
                  "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": {
                  "properties": {
                    "issues": {
                      "type": "array"
                    },
                    "latency_ms": {
                      "type": "integer"
                    },
                    "options": {
                      "type": "array"
                    },
                    "status": {
                      "type": "integer"
                    },
                    "verdict": {
                      "enum": [
                        "ok",
                        "warn",
                        "block"
                      ]
                    },
                    "x402_version": {
                      "type": [
                        "integer",
                        "null"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-31T17:08:59.201Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-31T17:08:58.962Z"
    },
    "resource": "https://minty-sprout.onrender.com/v1/x402-preflight",
    "serviceName": "Foundry",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "x402 preflight: checks a paid x402 endpoint before a payment is signed. Probes it unpaid, parses the v1 body or v2 PAYMENT-REQUIRED header, lints every accepts[] option (network, canonical USDC, EIP-712 domain name/version that signatures verify against, EIP-55 payTo, zero payTo, amount, timeout, testnet, resource host) and returns ok/warn/block with reasons. Input: URL, optionally 'POST <url>'. Deterministic, no LLM."
}

What the leaf hashes

{"body":"f626a46e86e0c90bacc64a6ca895b93865f6a34a35fa23e98a787b5df75ce411","id":1792408,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793560024985599,"prev":null,"subject":"x402_bazaar:https://minty-sprout.onrender.com/v1/x402-preflight","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (302406 rows).

  1. 0xc3981217471d2244b64dc1851c000f84fadc603a576ce20fa625c1438e83c547
  2. 0x419609e2cb9f517f7df22dc07a2e78ccfded5a8ee89010ced4b18206370bd60f
  3. 0x4499024ddff5d4ca8dfc1f99ade725a4d29712eb7cb7232e1253dbbd1205983b
  4. 0xa95c25d2f3b0c494bde2da7ca35ef69ec84ab1123043c995e863a995044c6265
  5. 0x4e6e7aff8a082102c155ef98af927265208587dba2ecbd2dbe58e84d81b52c8c
  6. 0x408d1217cafb301b771c8e2493a1ce0a768a2241cb68dbae4ba0d4456d247ba7
  7. 0x466e816c4de3b68e312d128a48e58e7df366bc10fce00f62dc0d4b50310929e3
  8. 0x907c2d7b42dd4c434cf8ac16db953b3dd907a7010e4b90e2309f076e1558f966
  9. 0x870f5bba084c5b9153b2447662480c7f1f1a305d7e704bd3c24b208a83ab0bda
  10. 0xc13bb1c470bdebe03525af2ddadb69f03e71d750eaef3b5baf49c1d1d2939dd1
  11. 0x6bfeee4cc7d0cc19f3d874bfcb548ebbb2594ad8d4fe0ad0f669573074a7743c
  12. 0x2341fe3058274d292666071bc8119652951968d15cf7d285531e210018e7ea3f
  13. 0xefa31efdf607e8d04b8c9fc919db78fe5a26a3ddbd6b0e7563c8ca73dc801298
  14. 0x5da52d6bfc8f88d79ebced4b6bebec468f5c2d8a21c193d44e901c7a6ce7941e
  15. 0x537331ef190eaefb4419f2a4558b952aaf9435d759df0b0c118b7df609ec1687
  16. 0xfc183bee85dc11a067fb710c6eb88824b94a516ddbdf2717b839e672a2206a7e
  17. 0xb5916fb7a3e87dc0702e46eeadcd22652e2e1e755f8d429cc7a14a67a350b51b
  18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
  19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910
Day root
0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3
Chained
0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4
Published
On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90

How to check it · This row as JSON