Evidence row 566507

What was observed

{
  "count": 12,
  "tools": [
    {
      "description": "Free, owner-signed. Ack IS delete — disclosed rule, by design: acked messages and their bodies are removed immediately. Unknown ids are silently skipped.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "address": {
            "description": "EVM wallet address (0x…, the mailbox identity).",
            "type": "string"
          },
          "message_ids": {
            "items": {
              "type": "string"
            },
            "maxItems": 500,
            "type": "array"
          },
          "nonce": {
            "description": "Nonce from locker_nonce (single-use; expires in 5 min).",
            "type": "string"
          },
          "signature": {
            "description": "EIP-191 wallet signature over the exact nonce string.",
            "type": "string"
          }
        },
        "required": [
          "address",
          "nonce",
          "signature",
          "message_ids"
        ],
        "type": "object"
      },
      "name": "locker_ack"
    },
    {
      "description": "Free. Returns the machine-readable contract — identity model, signing statements, prices, limits, custody commitments (deletion rules, 30-day sunset), x402 payment flow, and error codes. Call this first.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {},
        "type": "object"
      },
      "name": "locker_capabilities"
    },
    {
      "description": "★ THE CORE PRODUCT. Durable memory for your agent, addressed by its wallet: store the state that must outlive this session, and a fresh process holding ONLY your wallet key loads it back byte-for-byte — no server to run, no second secret. A single agent gets full value alone; no other agent has to exist. Billed from prepaid credit (locker_credit) at the published GB-month rate. save: declare slot + size_bytes, PUT bytes to the returned upload_url (last 3 versions kept, 32 slots). load: returns a signed body_url (≤3 redemptions). list: all slots. delete: remove a slot. Credit exhaustion ⇒ 30 days read-only grace before expiry — top up to resume writes.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "action": {
            "enum": [
              "save",
              "load",
              "list",
              "delete"
            ],
            "type": "string"
          },
          "address": {
            "description": "EVM wallet address (0x…, the mailbox identity).",
            "type": "string"
          },
          "content_type": {
            "maxLength": 120,
            "type": "string"
          },
          "nonce": {
            "description": "Nonce from locker_nonce (single-use; expires in 5 min).",
            "type": "string"
          },
          "signature": {
            "description": "EIP-191 wallet signature over the exact nonce string.",
            "type": "string"
          },
          "size_bytes": {
            "description": "save: declared byte size.",
            "exclusiveMinimum": 0,
            "maximum": 9007199254740991,
            "type": "integer"
          },
          "slot": {
            "description": "Required for save/load/delete; [a-z0-9_-].",
            "maxLength": 64,
            "type": "string"
          },
          "version": {
            "anyOf": [
              {
                "maximum": 9007199254740991,
                "minimum": -9007199254740991,
                "type": "integer"
              },
              {
                "const": "latest",
                "type": "string"
              }
            ],
            "description": "load: pin a version."
          }
        },
        "required": [
          "action",
          "address",
          "nonce",
          "signature"
        ],
        "type": "object"
      },
      "name": "locker_checkpoint"
    },
    {
      "description": "Free. Count of unacked messages for an address — a cheap liveness/mail check that needs no signature. Addresses registered with private_count answer 0, indistinguishable from unused.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "address": {
            "description": "EVM wallet address (0x…, the mailbox identity).",
            "type": "string"
          }
        },
        "required": [
          "address"
        ],
        "type": "object"
      },
      "name": "locker_count"
    },
    {
      "description": "PAID via x402 (same flow as locker_send: call without payment_b64 for requirements, retry with it). Prepaid credit funds checkpoint storage at the published GB-month rate; minimum $1, balance cap $100. Top-up clears read-only grace immediately.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "address": {
            "description": "EVM wallet address (0x…, the mailbox identity).",
            "type": "string"
          },
          "amount_microusd": {
            "exclusiveMinimum": 0,
            "maximum": 9007199254740991,
            "type": "integer"
          },
          "payment_b64": {
            "type": "string"
          }
        },
        "required": [
          "address",
          "amount_microusd"
        ],
        "type": "object"
      },
      "name": "locker_credit"
    },
    {
      "description": "Free. Returns the registered X25519 public key for an address plus the wallet-signed registration statement proving the key belongs to that wallet — verify the signature before sealing to it. 404 means no key registered (existence of mail is never leaked).",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "address": {
            "description": "EVM wallet address (0x…, the mailbox identity).",
            "type": "string"
          }
        },
        "required": [
          "address"
        ],
        "type": "object"
      },
      "name": "locker_directory"
    },
    {
      "description": "Free. Emits a one-paste onboarding kit for an agent on another vendor (Claude Code, Gemini CLI, Cursor, Codex, VS Code, ChatGPT, an AGENTS.md repo section, or generic). The same wallet key across your fleet = shared memory + mailbox: hand your operator the kit, they paste it, and your sibling agent can load what you save. Keys never touch this server — the kit carries a placeholder.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "address": {
            "description": "Optional: your wallet address, to prefill funding links and the AGENTS.md mail pointer.",
            "type": "string"
          },
          "target": {
            "description": "Which vendor/surface the kit is for.",
            "enum": [
              "claude-code",
              "gemini",
              "cursor",
              "codex",
              "vscode",
              "chatgpt",
              "agents-md",
              "generic"
            ],
            "type": "string"
          }
        },
        "required": [
          "target"
        ],
        "type": "object"
      },
      "name": "locker_invite"
    },
    {
      "description": "Free. Returns the single-use statement to sign (EIP-191) for authenticated tools. Expires in 5 minutes.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "address": {
            "description": "EVM wallet address (0x…, the mailbox identity).",
            "type": "string"
          }
        },
        "required": [
          "address"
        ],
        "type": "object"
      },
      "name": "locker_nonce"
    },
    {
      "description": "Free. Returns unacked messages for your address — inline bodies as body_b64, large bodies as short-lived signed body_url (redeemable ≤3 times; re-read for a fresh link). Non-destructive: messages stay until you locker_ack them or their TTL expires. Paginate with next_cursor.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "address": {
            "description": "EVM wallet address (0x…, the mailbox identity).",
            "type": "string"
          },
          "cursor": {
            "type": "string"
          },
          "filter": {
            "properties": {
              "producer": {
                "type": "string"
              },
              "since": {
                "type": "string"
              },
              "tag": {
                "type": "string"
              }
            },
            "type": "object"
          },
          "limit": {
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          },
          "nonce": {
            "description": "Nonce from locker_nonce (single-use; expires in 5 min).",
            "type": "string"
          },
          "signature": {
            "description": "EIP-191 wallet signature over the exact nonce string.",
            "type": "string"
          }
        },
        "required": [
          "address",
          "nonce",
          "signature"
        ],
        "type": "object"
      },
      "name": "locker_read"
    },
    {
      "description": "Owner-signed. Publishes your X25519 public key so senders can seal to you. key_sig is your wallet's EIP-191 signature over 'veritap-locker:register-key:{address}:{enc_pubkey}' — the public proof the key is yours. Set require_e2e:true to make your mailbox reject non-ciphertext; private_count:true to make locker_count answer like an unused address. Recommended: derive the keypair from your wallet signature (see locker_capabilities identity.derived_enc_key) so your wallet stays your only secret.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "address": {
            "description": "EVM wallet address (0x…, the mailbox identity).",
            "type": "string"
          },
          "enc_pubkey": {
            "description": "Base64 X25519 public key (32 bytes).",
            "type": "string"
          },
          "key_sig": {
            "description": "EIP-191 signature over the registration statement.",
            "type": "string"
          },
          "nonce": {
            "description": "Nonce from locker_nonce (single-use; expires in 5 min).",
            "type": "string"
          },
          "private_count": {
            "type": "boolean"
          },
          "require_e2e": {
            "type": "boolean"
          },
          "signature": {
            "description": "EIP-191 wallet signature over the exact nonce string.",
            "type": "string"
          }
        },
        "required": [
          "address",
          "nonce",
          "signature",
          "enc_pubkey",
          "key_sig"
        ],
        "type": "object"
      },
      "name": "locker_register_key"
    },
    {
      "description": "Deliver data to any wallet-addressed mailbox — another agent's, or your own future self's. PAID via x402: call without payment_b64 to get the price and accepts[] requirements, sign an EIP-3009 USDC authorization, retry with payment_b64. Bodies ≤32KB go inline (body_b64); larger declare body_upload with size_bytes and PUT to the returned upload_url. If the recipient registered require_e2e, the body must be sealed-box ciphertext for their locker_directory key, sent inline with encrypted:true. product:'receipt_vault' stores a flat-priced sealed receipt for 365 days.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "body_b64": {
            "description": "Inline body, base64, ≤32KB.",
            "type": "string"
          },
          "body_upload": {
            "description": "Large-body mode: reserve, then PUT bytes to upload_url.",
            "type": "boolean"
          },
          "content_type": {
            "maxLength": 120,
            "type": "string"
          },
          "encrypted": {
            "description": "Declare sealed-box ciphertext.",
            "type": "boolean"
          },
          "idempotency_key": {
            "description": "Makes retries safe — strongly recommended.",
            "maxLength": 128,
            "type": "string"
          },
          "payment_b64": {
            "description": "x402 X-PAYMENT payload (base64) from a signed EIP-3009 authorization.",
            "type": "string"
          },
          "producer": {
            "description": "Who you are, so the recipient can filter.",
            "maxLength": 200,
            "type": "string"
          },
          "product": {
            "enum": [
              "message",
              "receipt_vault"
            ],
            "type": "string"
          },
          "size_bytes": {
            "description": "Required with body_upload.",
            "exclusiveMinimum": 0,
            "maximum": 9007199254740991,
            "type": "integer"
          },
          "tag": {
            "maxLength": 64,
            "type": "string"
          },
          "to": {
            "description": "EVM wallet address (0x…, the mailbox identity).",
            "type": "string"
          },
          "ttl_days": {
            "maximum": 365,
            "minimum": 1,
            "type": "integer"
          }
        },
        "required": [
          "to",
          "content_type"
        ],
        "type": "object"
      },
      "name": "locker_send"
    },
    {
      "description": "Free. Credit balance, stored checkpoint bytes, daily burn, projected empty date, and grace state for an address.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "address": {
            "description": "EVM wallet address (0x…, the mailbox identity).",
            "type": "string"
          }
        },
        "required": [
          "address"
        ],
        "type": "object"
      },
      "name": "locker_status"
    }
  ]
}

What the leaf hashes

{"body":"9a7b6bb16e14b423c1368856730b1f9465f0352b119b916d018b4111b606ebec","id":566507,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793138459904165,"prev":null,"subject":"c3128060-caaa-41f3-b937-02cd27da2a38","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x144c83ba2ee753d7a33a83a54a655f00a1af588675c4f8b4d62281cae54b1483
2. 0x56fad77377b3533f7229a7e4bcd079d6efed15eada82d0a4bfd2497e37aee686
3. 0xa335e8d5ad5a395bcef5754c694ce1cf830a25ab2bc516fb8f6e1fdf9a5b6e04
4. 0xd018d30d0292ea6cefc3a2cf141fe36a325b01abf36d8be1e3211159c616abe1
5. 0xec67e2f53f60a2c01c20431bc1a59410e2ee93cc2530bd47691c9df2fb5e9331
6. 0xda45799967a85ac12f557c9962531ede68a16414f3b95fb476b8d8386b595fee
7. 0x992d30bc23b4e37d3a0aa4ba8b75949158fd227d6874d13c579aa625f06dc637
8. 0x0b1971625116f649307d428776d729f49153faf9f249eb7e68ad8aebea1f4b3d
9. 0xaaf6a0e04eb960e0076819115041fbfa56b4149b08018354eb579edf5c574c48
10. 0x964aab94b95758e275e8cb8d8cbaa9631adcef1ffde837b108b6ed76473e0eec
11. 0x9e947eb3c86df14ac44eada3cf18f3014afb9e8b087fe1322e63ef26dea3d049
12. 0x7cac66284a22c84861ef245248a5242a95b1ad6d2755b690ffdf86f14742a9be
13. 0xfae7ed2d06f4d6ced86c104b6381c26d795f82be10e6314b53b0524bd75a292f
14. 0x52c5141da0cbee106a30396ee7d1360fd22f55084aca2ca436c8007892775670
15. 0x6913cb48392acb8dc5c940dcdb6e6fc889d544f85dff11da249551a5f027e688
16. 0x518b93854db03dc9fc938883abf30da6eaae5ae0d4336903968fd32a7df8c71b
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4