Evidence row 1037719

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.x402agentic.ai/spend-guard"
    ]
  ],
  "name": "api.x402agentic.ai/spend-guard",
  "owner_address": "0xc23c4afa42cbabbc03d04bc87ecb769fc82f1f43",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xc23C4aFA42cbaBbc03D04Bc87ecB769Fc82F1f43",
        "scheme": "exact"
      }
    ],
    "description": "Per-agent budget enforcement — track an agent's cumulative spend against a cap and block overspend. Part of x402 Agentic, the payment-trust suite for AI agents on Base USDC.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "agentId": "agent-123",
              "amountUsd": 0.25,
              "budgetUsd": 10
            },
            "type": "http"
          },
          "output": {
            "example": {
              "agentId": "agent-123",
              "allowed": true,
              "amountUsd": 0.25,
              "budgetUsd": 10,
              "recorded": true,
              "remainingUsd": 9.75,
              "spentUsd": 0.25,
              "verdict": "allow"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "agentId": {
                      "description": "Stable identifier for the spending agent",
                      "type": "string"
                    },
                    "amountUsd": {
                      "description": "Amount about to be spent (USD)",
                      "type": "number"
                    },
                    "budgetUsd": {
                      "description": "Optional: set/raise this agent's budget (USD)",
                      "type": "number"
                    }
                  },
                  "required": [
                    "agentId"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-22T21:40:23.801Z",
    "quality": {
      "l30DaysTotalCalls": 9,
      "l30DaysUniquePayers": 7,
      "lastCalledAt": "2026-10-22T21:40:23.212Z"
    },
    "resource": "https://api.x402agentic.ai/spend-guard",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Per-agent budget enforcement — track an agent's cumulative spend against a cap and block overspend. Part of x402 Agentic, the payment-trust suite for AI agents on Base USDC."
}

What the leaf hashes

{"body":"9e9269b9111fac172db0f33a9fedc4146d3f105d36a0a0ce35af032b90dd6146","id":1037719,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793298244117558,"prev":70262,"subject":"x402_bazaar:https://api.x402agentic.ai/spend-guard","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-29 (242798 rows).

1. 0xaeacc20f1e67134d324d76968dcccbb0e229eb62282696902b6b714dadc39233
2. 0xd9c4c524708546740a48f8a48f2acc15737156a8955672e118b35a17e4fc794d
3. 0x3810e22c8c9742cb2cd849752a6ab898ab8eecb58b32b3b60e8772bee6091588
4. 0x8dbf9625a5957382744b6c8f83914ae30948584ce547efe785ca49b695c8ad63
5. 0x2fb30236ea5cbdc29291d75286516fb79d8f4105334a5ca169ca292c40124f76
6. 0xa6c3fbb12e058bedf3e661fda0b9d61c2be143b893fc04420542b53ceefea430
7. 0x8814958d694ea445fcea97ac6e2f73076c84c00ea965244abc804895a287cbdc
8. 0x4364d6c150c5358bb40d86c6e6e2fe315840867040f237ac5d529baac6961787
9. 0xec139bdf1f40fb1d78d2766a7932e38cdf4e24c703eff56522ee2ed734a82b89
10. 0x0d7a5befc977e3a1cbd61c9e2410843b5e497e16b310f2a87adb892046875cf1
11. 0x80e111e92d7a8f6b7ac8e6b866c916af7f64e6382f70c961a2e94ad89c508393
12. 0x895e900de24394476af43fc0b1bb5e6d3af452e988bb74cf1788806bad7c3387
13. 0x30dba3897a2e6907174b0058b94302f9cd01c20ba1fffe70ca722237279171ed
14. 0x585b1e0c9b8e6cc02683a3bcbd6f86329575401feac9ee51a7efd21ed87f7ed0
15. 0xaa1d19094c2ce6d011a3c40533fa7efee207719d6c482ffc47018b28e5518acc
16. 0xef5d5572aac8f06b61579b7167b369fcb479d9027d4037dc9cacff9e3a26ffd2
17. 0xa1fa2e97e71ad6e802f325afd74bb7095901f2060529c9739182a1233f8804bc
18. 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1