Evidence row 2496652

What was observed

{
  "count": 3,
  "tools": [
    {
      "description": "Create a disposable receivemail.dev email address that receives real mail. Returns address, expiresAt and secret; keep the secret to read the mailbox. Free without a key (up to 60 minutes); with a paid key on the MCP connection, up to 1440 minutes and an extracted otp field on messages.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "ttlMinutes": {
            "description": "Lifetime in minutes, default 15. Free tier caps at 60.",
            "maximum": 1440,
            "minimum": 1,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "create_mailbox"
    },
    {
      "description": "List the last 50 emails received by a mailbox made with create_mailbox, newest first.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "address": {
            "description": "Address returned by create_mailbox.",
            "type": "string"
          },
          "secret": {
            "description": "Secret returned by create_mailbox.",
            "type": "string"
          }
        },
        "required": [
          "address",
          "secret"
        ],
        "type": "object"
      },
      "name": "list_messages"
    },
    {
      "description": "Wait up to 25 seconds for an email to a mailbox made with create_mailbox. Returns {timed_out:false, message:{from_address, subject, body_text, received_at}} or {timed_out:true}; call again on timeout. Pass `since` (ISO 8601) to ignore mail you've already seen.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "address": {
            "description": "Address returned by create_mailbox.",
            "type": "string"
          },
          "secret": {
            "description": "Secret returned by create_mailbox.",
            "type": "string"
          },
          "since": {
            "description": "Optional ISO 8601 timestamp; only newer mail counts.",
            "type": "string"
          },
          "timeout": {
            "description": "Seconds to wait, default 25.",
            "maximum": 25,
            "minimum": 1,
            "type": "integer"
          }
        },
        "required": [
          "address",
          "secret"
        ],
        "type": "object"
      },
      "name": "wait_for_email"
    }
  ]
}

What the leaf hashes

{"body":"5f730636f20562f04ab193cbb1a2a3cdfd5b04e5bb7231e361b9f5896ba6e2f1","id":2496652,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793668732529063,"prev":null,"subject":"f6313a9e-3eff-4030-95b2-a983753cf0df","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-03 (425475 rows).

1. 0x5c13a34dcff9329a129555b99628123712284edd294518d10858a26ab4da7d69
2. 0x3ce4faa95b1e660dc5e9d94228d1786c591e424355449d6b24a486e24ed38e04
3. 0xa6d00f44fe3c8f0de602736d598998a172a23196548b2fea1922c5dd80a9a164
4. 0x6b3bab613019f5a1ef76336a9fce96db25c3e3d50db4f98922525e9d138a5bcb
5. 0x602d94ed40491e85238cb291c9c42d848b0b7932173cf189c02539d1093b33a3
6. 0xbca6d60a13ee53a122902036b556a60693a664d00eff10e99eb7e50bd5076f6a
7. 0x9ba0b19c81366746e0cd1f66e8c80f2b8605ca004eb0d64cea8bf1c7c20b43d2
8. 0xc47ffeb63cdad20b9d7f12a4fdf79ae2690927000de00bdca8f53d2c4914fa4c
9. 0x714464afd51b9f9dc2d752270afddb70e9bef11f453dac22aff027f8668b8a03
10. 0x493dabaeaacab9428b65d3e40ebe1b56a6fcbd88671a3bad167d86d5f0547e95
11. 0x3afa69d314b33d4e67c709df2d8e14e38f0d5a889e4e02cf4b7912c65e9b1d4c
12. 0xeba477ec9dcd3e2896a40dfa054e1d6f277259e41f43119e0870448cdc37228e
13. 0xcf11475fb1d88adbcfc7a6c6c088c0d1cc115e211d125d8b50181219cb4beecc
14. 0x1fc4191e8f35bfa53de7e0451b776edb79a6c6dcdf333b4de5afdb414a516e3f
15. 0x335134861d623e850e919233efd5afeff49bc2ffa02948458dea325cdabfc928
16. 0xd3872af0d8c282b0d088e008b24701ec7576ad8e40ceab245546a2e300818868
17. 0x3ef2d6c56d2bc5990e646c07605e90ed24d1c642cbcca8f60a35422b8b7981ee
18. 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7