Evidence row 3774139

What was observed

{
  "count": 5,
  "tools": [
    {
      "description": "Pre-settlement epistemological evaluator and Standing Mark guard for autonomous agent-to-agent x402 transactions. Evaluates the proposed transaction through Decision Integrity to authorize x402 settlement only when EXECUTE standing is epistemologically established.",
      "inputSchema": {
        "properties": {
          "amountUnits": {
            "description": "Amount in atomic USDC units (default 1000000 = 1 USDC).",
            "type": "string"
          },
          "buyerAgent": {
            "description": "Identifier or address of the paying autonomous agent.",
            "type": "string"
          },
          "claim": {
            "description": "Transaction proposition and terms to evaluate.",
            "type": "string"
          },
          "payTo": {
            "description": "Destination settlement address on Base (eip155:8453).",
            "type": "string"
          },
          "payment_signature": {
            "description": "Base64 or JSON x402 v2 payment authorization for 1 USDC on Base.",
            "type": "string"
          },
          "provenance": {
            "description": "Supporting provenance or authority record.",
            "type": "object"
          },
          "resourceUrl": {
            "description": "Target x402 resource or contract URI.",
            "type": "string"
          },
          "sellerAgent": {
            "description": "Identifier or address of the receiving counterparty agent.",
            "type": "string"
          }
        },
        "required": [
          "buyerAgent",
          "sellerAgent",
          "payTo"
        ],
        "type": "object"
      },
      "name": "whp_authorize_x402_transaction"
    },
    {
      "description": "Sovereign epistemological evaluator (not merely a notary). Evaluates client data and propositions under Decision Integrity: The Continuous Work (auditing object identity, qualifier inheritance, join warrants, Coherent Substitution, Authority Leakage, Object Drift, and Smallest True Move), signing the determination with the Standing Mark. Calling without payment returns the exact 1 USDC Base payment challenge. Pass payment_signature to settle and receive the signed determination.",
      "inputSchema": {
        "properties": {
          "api_key": {
            "description": "Optional WHP subscription API key (Developer, Team, or Institutional tier) bypassing x402 challenge.",
            "type": "string"
          },
          "claim": {
            "description": "The claim or proposition to evaluate (also accepts aliases: text, prompt, content).",
            "type": "string"
          },
          "idempotency_key": {
            "description": "Optional idempotency key for safe execution recovery.",
            "type": "string"
          },
          "payment_signature": {
            "description": "Base64 or JSON x402 v2 payment authorization for 1 USDC on Base (network eip155:8453 to 0x1050eddd8282623b0c263ed6bdbd42370bbc28d3).",
            "type": "string"
          },
          "provenance": {
            "description": "Optional provenance graph or supporting evidence.",
            "type": "object"
          },
          "subject": {
            "description": "Optional subject/context of the proposition (defaults to claim summary).",
            "type": "string"
          }
        },
        "required": [
          "claim"
        ],
        "type": "object"
      },
      "name": "whp_evaluate"
    },
    {
      "description": "Discover WHP Standing: Machine-verifiable standing under explicit authority and bounds. Includes exact profile, schema, authority prerequisites and owner-authorized payment contract.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "required": [],
        "type": "object"
      },
      "name": "whp_standing_contract"
    },
    {
      "description": "Request a WHP Standing Evaluation. First call returns the exact HTTP 402 payment terms. Supply only the buyer’s own pre-authorized payment signature on retry. Paying does not establish standing; a failed assessment has no Mark.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "client_proof": {
            "maxLength": 6000,
            "type": "string"
          },
          "payment_signature": {
            "maxLength": 24000,
            "type": "string"
          },
          "submission_raw": {
            "maxLength": 262144,
            "type": "string"
          }
        },
        "required": [
          "submission_raw"
        ],
        "type": "object"
      },
      "name": "whp_standing_evaluation"
    },
    {
      "description": "Retrieve the exact original WHP Standing Mark or negative assessment bytes with buyer authentication, without another charge.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "client_proof": {
            "maxLength": 6000,
            "type": "string"
          },
          "purchase_id": {
            "pattern": "^[0-9a-f]{64}$",
            "type": "string"
          }
        },
        "required": [
          "purchase_id",
          "client_proof"
        ],
        "type": "object"
      },
      "name": "whp_standing_result"
    }
  ]
}

What the leaf hashes

{"body":"5f78d62e11dfb4d344ec908fa8aa89a3715c84e1a89fd45fbddf7e8f0f6f70ae","id":3774139,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793999576777258,"prev":1486896,"subject":"7fc24e24-f5d7-4847-8e73-981690e358cd","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-06 (303443 rows).

1. 0x43460e090793697e352ed85b7964bd1e98894e9e31a9aa483133c22ca29b7f80
2. 0x1e5e2dfea7aadbf1d8e5c1ab423bcae6b567cbc70b7c0633a71fcf1d3d0820da
3. 0x207caa798c6e6eea3b1b0da22638daa4c49d3dae3de72834b35c0cc5c235e26d
4. 0xb18eefa23c78bf481c583d7219ed7cbbbcb65ba2e55b5e58f4a4a47d1b36c11c
5. 0xcd5ab5014f07896c97fb7ea45a0e56b128a09589c0fea24367b2a1df4af4750a
6. 0x5f65da60a9920b18d0e525eee5cdd76e6afb310acc2eaa78f1fab84c8544db92
7. 0x218c8272e840dbb80ba2fc566bd5334aa713b8fa5658f17212e1ff4ca0d3a9a9
8. 0x9ea8fce8543914dbedc5647788a7a1b83a940e2b026413dce0856efec2527540
9. 0x5776e13128f62aebaacf268a6de77b3f1c5c0351512df26121af57045fb934ac
10. 0xf8381c12732af73af1db03e41e5cffded6b324917c9ed36ad7e2234947d00506
11. 0xb694c67379f103ea222f27e9480adc4b2c2b78926f487a5a0a3cf423e963f6bc
12. 0xe59613042a1c55b96dbf42ee837e452baa80c4efe2946f3c04c7064526ef4c90
13. 0x2ef46b577f5d9a26dc0a53d11e5c56e403afd53d28457af329a319bf3020b535
14. 0xfff93ce218f4539f2d354235d409dc53c9f6102b043c9da7a4a7f0fd9c804d4f
15. 0x3e5703f087c9966ff9f302cea33450db9f9fde7cafb8269b22ded1b2a3da03b0
16. 0xdfedd18f60be5438b67a88cd42d31ead60bf5dbfc8d726e3d83be13474b3bd3f
17. 0x4a618d78b1cebba8beec4ef22aaac9187dcdfb39064e0be537ca2600abb90740
18. 0x119743aadcddb571b28b442b62196d4a0afc4e1c9979c2d477d34fcc9413deaf
19. 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948

Day root

0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f

Chained

0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3

Published

On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1