Evidence row 1792544

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/kb/agent-tool-security"
    ]
  ],
  "name": "Saylor Innovations Guide Library",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "memo": "saylor:agent-tool-security",
          "reference": "2E9RauJPhYMGLLCKEQZroM2rnE1nG77PPeRvDT9wpuUS",
          "session": "eyJhcnRpY2xlSWQiOiJhZ2VudC10b29sLXNlY3VyaXR5IiwicmVmZXJlbmNlIjoiMkU5UmF1SlBoWU1HTExDS0VRWnJvTTJybkUxbkc3N1BQZVJ2RFQ5d3B1VVMiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MTQzOTgyNTkzM30.Wx9CFfblbdw07XcNe2kFGJYUd_HXJE6qSq7gLz-J5YE"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "memo": "saylor:agent-tool-security",
          "reference": "8hq5qs6WwCiBrSb5s89rdVhFrK9aX7qwtCPCbHu4xGwL",
          "session": "eyJhcnRpY2xlSWQiOiJhZ2VudC10b29sLXNlY3VyaXR5IiwicmVmZXJlbmNlIjoiOGhxNXFzNld3Q2lCclNiNXM4OXJkVmhGcks5YVg3cXd0Q1BDYkh1NHhHd0wiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MTQzOTgyNTkzM30.2bSOoquY-hhWBMoroyqAL-bUyInVJhvcxCOfH-6px_Q"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:agent-tool-security",
          "name": "USD Coin",
          "note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:agent-tool-security",
          "name": "USD Coin",
          "note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:137",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:agent-tool-security",
          "name": "USD Coin",
          "note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:42161",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "84223",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:agent-tool-security",
          "native": true,
          "note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
          "quotedLamports": "86828",
          "reference": "AsKVDVo2ZRcLFNq23NLUPXSN4LaPsc8MXWTdiGRg7YK6",
          "session": "eyJhcnRpY2xlSWQiOiJhZ2VudC10b29sLXNlY3VyaXR5IiwicmVmZXJlbmNlIjoiQXNLVkRWbzJaUmNMRk5xMjNOTFVQWFNONExhUHNjOE1YV1RkaUdSZzdZSzYiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6ODQyMjMsImV4cCI6MTc5MTQzOTgyNTkzM30.ktXzZOCC4adGj1WLFZegw82_MMlr3cG0f6YWb25RjUI",
          "solUsdPrice": 115.17
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Agent Tool Security Preflight — AI & Agents",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "body": "A go/no-go security decision for an agent tool, backed by a mapped authority boundary, tested abuse cases, least-privilege credentials, confirmation and spend limits, safe output handling, and an emergency disable path.",
              "c": "AI & Agents",
              "id": "agent-tool-security",
              "t": "Agent Tool Security Preflight"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "POST",
                    "PUT",
                    "PATCH",
                    "DELETE",
                    "HEAD"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "body": {
                      "type": "string"
                    },
                    "c": {
                      "type": "string"
                    },
                    "id": {
                      "type": "string"
                    },
                    "license": {
                      "type": "string"
                    },
                    "price": {
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "t": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "id",
                    "t",
                    "c",
                    "body"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "json",
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1790235422/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-08T06:08:25.979Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T06:08:25.801Z"
    },
    "resource": "https://saylorinnovations.com/api/kb/agent-tool-security",
    "serviceName": "Saylor Innovations Guide Library",
    "tags": [
      "agent-security",
      "tool-permissions",
      "trust-boundary",
      "preflight"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Agent Tool Security Preflight — AI & Agents"
}

What the leaf hashes

{"body":"13b1e2c61fcc2a2cad94978e7f007ca0198a90b5d8b411faef5969b021c3b6cb","id":1792544,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793560028132959,"prev":120056,"subject":"x402_bazaar:https://saylorinnovations.com/api/kb/agent-tool-security","subject_kind":"source_record"}

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. 0xde321639741bb014a7d2dc5eed52dd9e5b23a2a59de1e9aa3654179e40f35b9d
2. 0x335daa64edf238c3da20c1908bfa6602d375364d0520240261a12fba19fb3f73
3. 0x13888ff2e1236ec5201fe1c24eeecf5b5b38a99267e198955bb06cf5850231c7
4. 0xfcb20bd20981bf1383b2ad6eb7c752427e574c1c2e221aa5983195f784011fc1
5. 0x1b554732062296afbf12d64d0fa57e2703c4d1aecb5aae5d1d8396df794b04e6
6. 0x82490c86e77d07fdd67a248d02c762ae6ba8102916e3ec1bf1088bc7be47e1c9
7. 0x255f959b41b408b2638c664a96d03bbba87e890b6f2eb08c5c11e88f363b03d1
8. 0x89249ea1fd204713c46eff9fb88606266c33beef54bf348f5af562e99452aef6
9. 0x6156d778b4c5efff6916b113479e7e81ff16b6287589b577ada18a03cc07db2b
10. 0x3b3ffa8ac2cc5198b30fe0e5a13b2eaad49ff12a4c681829c2ebc3e1d9222ea0
11. 0x965264c659f57cb1052d873a4a666253dd72b7454073f4c5ec89f4310be0e203
12. 0x611dcfe15d117484d1702ae24b6e3597433b35a0af5f331508e285f4b842d219
13. 0xd1d3d18403c8d600bd2ffc7617196b7b7b40c9cc69bc89a55f9c3d8c58bd3cfd
14. 0xf25ae803bf30c21cc73fca60cb3edf50df2a8c71b23bfe8c11bfe395b2367892
15. 0xab7a3fc66c9797d0e63453ae08b7e56806e93e038fb5c65065ad1ba1e1d9114c
16. 0x1023fddec22f7cf1aff98422f0e5714dcc4ca7df3408bb6d4550d6f770e5033a
17. 0xf7af9137c03da92bdd37d086da37554097bcd1fce016f93f2e66d18b71970c5d

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90