Evidence row 276440

What was observed

{
  "count": 2,
  "tools": [
    {
      "description": "Audits any remote agent or MCP URL for JSON-RPC compliance, latency SLA, OpenAPI schema, and HTTP 402 settlement headers. WHEN TO USE: Call `audit_x402_and_a2a_endpoint` when your task requires deterministic `x402-audit` analysis for `url`; use `get_agent_wallet_status` to check your remaining free trial quota or prepaid balance. WHEN NOT TO USE: Do not use for unrelated domains or binary media. PARAMETER INTERACTIONS: Pass the target `url` as a non-empty string; omit `agent_id` and `tx_hash` during your 5 free trial calls, or supply `agent_id` (`agd_pass_...`) / `tx_hash` for paid execution. Read-only and idempotent; results are cached for 1 hour (<5ms cache hit). $0.01 per call. Pricing: the first 5 calls per agent_id are free and failed calls are never charged. After 5 calls, the tool returns a payment-required quote (not a fatal error) with a $2 Stripe top-up link and Base/Solana USDC addresses; complete payment, then retry with your agd_pass_ key in agent_id or pass tx_hash. Example: audit_x402_and_a2a_endpoint(url='https://docs.stripe.com/api')",
      "inputSchema": {
        "additionalProperties": false,
        "examples": [
          {
            "url": "https://docs.stripe.com/api"
          }
        ],
        "properties": {
          "agent_id": {
            "description": "Optional agent identifier or prepaid agd_pass_ session key. Omit during your 5 free trial calls to use an ID automatically derived from your client IP, or pass your agd_pass_ key after topping up.",
            "maxLength": 256,
            "minLength": 1,
            "type": "string"
          },
          "tx_hash": {
            "description": "Optional on-chain Base Mainnet (0x...) or Solana SPL USDC transaction hash. Omit unless settling an individual call directly on-chain instead of using an agd_pass_ key in agent_id.",
            "maxLength": 256,
            "minLength": 10,
            "type": "string"
          },
          "url": {
            "description": "Target A2A, MCP, or x402 service URL to audit for protocol compliance.",
            "maxLength": 99999,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "audit_x402_and_a2a_endpoint"
    },
    {
      "description": "Inspect an agent's account ledger: remaining free trial calls (out of 5), prepaid USD balance, cumulative spend, total API calls, and total LLM tokens saved. WHEN TO USE: Call before a batch of paid tool executions or after completing a Stripe or USDC top-up to confirm your balance. WHEN NOT TO USE: Do not use to process web content, execute marketplace tools, or submit payments; use the other tools on this server for execution. PARAMETER INTERACTIONS: Omit agent_id to inspect the default trial account derived from your client IP, or pass your explicit agent_id or agd_pass_ session key to check a specific funded wallet. Free and read-only: never charges a fee or consumes a free trial call. Example: get_agent_wallet_status(agent_id='example')",
      "inputSchema": {
        "additionalProperties": false,
        "examples": [
          {
            "agent_id": "example"
          }
        ],
        "properties": {
          "agent_id": {
            "description": "Optional Agent ID or agd_pass_ session key to inspect. Omit to check the default wallet derived from your client IP.",
            "maxLength": 256,
            "minLength": 1,
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "get_agent_wallet_status"
    }
  ]
}

What the leaf hashes

{"body":"a022cc25f148e8308ad25df443ae4cbc57e0a484302930ec892b3b0fcdd6468c","id":276440,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793041255054625,"prev":null,"subject":"708fad32-0a2c-412a-a203-bc28ea6d4ed0","subject_kind":"endpoint"}

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. 0x4ac47f867bb7b64aca47d406ecaebfcac2f2889dbcb3f493f11d79551ef0ec7a
2. 0x86ee334bae634609e54b119160cd0c95e06c4cb972542c94d31ba024ac774e53
3. 0x97ac98cafbe695d8e1b3d2a21ebbfadae30d05ebdc42c00f181f65c82f7bc1b8
4. 0xbdf71caf30e5566a8286833a5cfa1eaa3256cac7166681c006aa91d17c4a68de
5. 0x53b8745facd7ed97d40721cb8806854e02aed63eaf963ab46b0a68657a6e2801
6. 0x217f2a66a4aa9b4e07575c6bbdabe2b058e7290598675d39f5b7098d0217635e
7. 0xa8f1af8fef3115077e37f5818b8126fcafbaf004b1dde95cac6eadf737a43607
8. 0x2e3b978b0221d175b2658fb692743c60524231b727dfa6e0c939ecf3c9090840
9. 0x17e5514daeab01fa26b00a0cafb9128ee75a4ef74f81eef30646126f19306906
10. 0xb9c44c195c511a74ed82b24db714e43b1a5a80029db27888948baa71082b81f9
11. 0x401a323dfcffdb4ec1a75537dabf1f5c7403e6d01d2965f0f6eba13263cf7c64
12. 0x67ae8949b58cb7b0dd4cfa0f9aeeee715e0ae6b87fef0ba46483bbf280004c53
13. 0x1ffd24a0422348bb2305058cc138e276511e1c074bf8139af5b773941f0e5de2
14. 0x88e326a39b26e2c125306c9d3805d14398ace088bba9a2a0aa376b811cfb201a
15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae