Evidence row 60511

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://402sentinel.com/api/firewall"
    ]
  ],
  "name": "402sentinel.com/api/firewall",
  "owner_address": "0x1a9fa76f5b420e85de147c4419638bebe64d6de5",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x1A9Fa76f5b420e85DE147C4419638BEbE64D6dE5",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "4uLqY8BnJuA7CFxRork2FnNMu2u9NsJquF8Cc6V5B5jB",
        "scheme": "exact"
      }
    ],
    "description": "Buyer-side payment firewall: should THIS agent make THIS payment now? Where /api/assess vets the seller, this vets the payment against your own agent's behaviour. POST {agent_id, payment:{payto_address,amount,resource_url}, context?:{untrusted_text,intended}, policy?} returns allow/hold/block plus 9 signals incl. routing_anomaly, velocity, amount_anomaly, injection_destination, intent_mismatch. Stateful per agent_id.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {},
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "agent_id": {
                      "description": "The calling agent's wallet (keys per-agent history). Optional — auto-filled from the x402 payer if omitted.",
                      "type": "string"
                    },
                    "context": {
                      "description": "Where the payment instruction came from (provenance).",
                      "properties": {
                        "expected_payto": {
                          "description": "The payTo the agent intended, to detect routing swaps.",
                          "type": "string"
                        },
                        "metadata": {
                          "type": "object"
                        },
                        "source": {
                          "description": "e.g. \"tool_output\", \"web_content\".",
                          "type": "string"
                        }
                      },
                      "type": "object"
                    },
                    "payment": {
                      "description": "The payment instruction being vetted.",
                      "properties": {
                        "amount": {
                          "type": "number"
                        },
                        "asset": {
                          "description": "e.g. \"USDC\"",
                          "type": "string"
                        },
                        "payto_address": {
                          "description": "Address the payment would go to — 0x EVM (Base) OR base58 Solana.",
                          "type": "string"
                        },
                        "resource_url": {
                          "description": "The resource being paid for.",
                          "type": "string"
                        }
                      },
                      "required": [
                        "payto_address"
                      ],
                      "type": "object"
                    },
                    "policy": {
                      "description": "Optional checks, e.g. {check_counterparty: true}.",
                      "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"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-14T22:19:42.305Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-14T22:19:41.937Z"
    },
    "resource": "https://402sentinel.com/api/firewall",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Buyer-side payment firewall: should THIS agent make THIS payment now? Where /api/assess vets the seller, this vets the payment against your own agent's behaviour. POST {agent_id, payment:{payto_address,amount,resource_url}, context?:{untrusted_text,intended}, policy?} returns allow/hold/block plus 9 signals incl. routing_anomaly, velocity, amount_anomaly, injection_destination, intent_mismatch. Stateful per agent_id."
}

What the leaf hashes

{"body":"9470e74b5e2cdad6427ba7e7d0a070e8f749f20444880fe0510319e5c16f569d","id":60511,"kind":"listing","method":"baseline/1","observed_us":1793025448912412,"prev":null,"subject":"x402_bazaar:https://402sentinel.com/api/firewall","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. 0x11b3bf1d788815a31ab03becc7e53496f41d29bb5b433ca1a4f626a04afabcf9
2. 0x16ec79e065171114a259c6bb6b4ac91fa904dc5bcc2a208a402d13004b6dbae0
3. 0xe902face933099abe593fc46b694911f33d3927b5d9167bf774f594255855b43
4. 0x779a74c81cbf331ee11c40f39795f84aec12f925f308422bfd6ae29d7b170657
5. 0x57e5cd90d1a5587dcbffc246310ac5398799e523171f4827e427473138c68f2e
6. 0xf1da235645110b590a363b6690b9aaf86761544391d6ba0ff45e6414f05287de
7. 0x6eae71c476b5597f603539b6756ca855f4bb19d91c467665aab448db8db4e470
8. 0xc8ce4414b0ae427c5ba7c0ed1d58a5b9dfbbb15aee1b4a7e79fb299b23a03f2a
9. 0x4e785676cfd6ff09cb0e055fe7daa99aa723abff896550ea9581813c291f23dc
10. 0x970e7fce5d49f34f6b51af44a118952db23266c34d492098d84b4f12f45ecbff
11. 0xb3d22f508aaf8117a0a5454390284c48363baa096e225b30af56d708d8dcd0b3
12. 0xc02d9eff6ef94d46d90d54320548f18fc3f05787047265548577569253c19969
13. 0x294f7935f78a896b5f246a7c9a7ee1b023720acdb03fff3cd549c63479848ec9
14. 0xb49e8c2564256e5322e375cb619d9ac70fd17c1d1eba9c991bba4cb6428f45cc
15. 0x60582ab4b41e72eb70eb0bce07fbf0fb4d2b62a8bad5be50f5d16d511adc746c
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae