Evidence row 1776909

What was observed

{
  "count": 5,
  "tools": [
    {
      "description": "claim the one-time free first Solo month for your first server (the POST /trial/claim operation; Bearer token required)",
      "inputSchema": {
        "properties": {
          "apply_shims": {
            "type": "boolean"
          },
          "clients": {
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "full_matrix": {
            "type": "boolean"
          },
          "idp_shape": {
            "enum": [
              "dcr_friendly",
              "cognito_like",
              "strict_loopback"
            ],
            "type": "string"
          },
          "server_config": {
            "type": "object"
          },
          "server_name": {
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "claim_trial"
    },
    {
      "description": "run one full client x IdP-shape conformance matrix (the POST /check operation; x402 $0.01 per check unless your account has an active Solo subscription/trial, metered exactly as REST)",
      "inputSchema": {
        "properties": {
          "apply_shims": {
            "type": "boolean"
          },
          "clients": {
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "full_matrix": {
            "type": "boolean"
          },
          "idp_shape": {
            "enum": [
              "dcr_friendly",
              "cognito_like",
              "strict_loopback"
            ],
            "type": "string"
          },
          "server_config": {
            "type": "object"
          }
        },
        "type": "object"
      },
      "name": "conformance_check"
    },
    {
      "description": "list only your own account's past matrix runs (the GET /history operation; Bearer token required)",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "run_history"
    },
    {
      "description": "activate/extend a subscription via x402 X-PAYMENT header (the POST /subscribe operation; Bearer token required): Solo $9/mo per server by default, or Fleet $29/mo for up to 10 servers with tier=fleet (WO-F-P22-17/RT-20 — the tier parameter is advertised here exactly as in the REST OpenAPI)",
      "inputSchema": {
        "properties": {
          "server_name": {
            "type": "string"
          },
          "servers": {
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "tier": {
            "enum": [
              "solo",
              "fleet"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "subscribe_solo"
    },
    {
      "description": "your account's subscription status (the GET /subscription operation; Bearer token required)",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "subscription_status"
    }
  ]
}

What the leaf hashes

{"body":"b1bd4ecf801ce5ece472e88dd1518a2f05174a412ad8554ea00c659051d1b8bf","id":1776909,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793552633333419,"prev":1742847,"subject":"e88f2fce-d841-4af5-b2a0-d0911b0481a3","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0x1b44475d57db678ad542ec75ca67cf24c80c47cc6a8f56e21fe8b5a739c9c1d7
2. 0x964ccd87ec20bc9dc94f903084536dfa1387e4a7e4c6295057a1778f56cfd3f6
3. 0x4cac3e4236d7718a1b235ee1752e2090c60eb3cbb708974317476a66fcda126c
4. 0xe3b7bc3af4f3477f0c90adf7edf5fc6ddab03f003ea650df4ee5fd3688947bd5
5. 0x006d586791140d7883dcf57c4cb512fb875fa08d30dd449ed5f5efc21e8be6cd
6. 0xe13ccad26a34de3cabad7fefc4773aa816f2c090ef8fe9df0812468d9aab74d6
7. 0x3d59a927500cd73eaaa07215db98d01345d440de6e96b256ab75a03682fd8c59
8. 0xb1eddd89216a9f546f9c834cf1ddb7e7e9e5e27b0b687f3f9c63ed8080345d0a
9. 0x4e82cfb899a5371b1bc4fd5249b5d0669b6cae107c67e49109ba41370bb3a438
10. 0x7feb18ab4810da4328c701e174fbe4d669af9db4af8e332e0cda53462b7593a2
11. 0x28314cbf4ea168f3ce449ba5275acf777ea2e975e841514970c2d41c44f72237
12. 0x57d88367ee180afa29761a07ed31b3a7c30cf755867eb29b4aa502db53e71e88
13. 0xe932a6d750c9158a9531e23362139f67f1dcf32cd64229987581f24d7a22fe71
14. 0xa4d26e861503b80bb91bc89e98fcc6daf0fcf003f5a144540ccd91637ccdc11f
15. 0xf1aed005f71411c0df252d9623f284bcac7de199e24c4d4cd5df3e8d3348d3aa
16. 0x5cf5a0a57795246f996e480f05ed085c19d02f7d6e8fc3ddc392412466554f0f
17. 0x02b3554752e71a19b12d7a76dbff436e85387226ceec89fdebdcdaf0122c2932
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90