Evidence row 120293

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/kb/safe-outbound-messaging"
    ]
  ],
  "name": "Saylor Innovations Guide Library",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:safe-outbound-messaging",
          "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:safe-outbound-messaging",
          "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:safe-outbound-messaging",
          "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": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "memo": "saylor:safe-outbound-messaging",
          "reference": "9BmuPQ8B2cnniAkjkRmQe2S6mrkjei5euM4RYcDdHjUg",
          "session": "eyJhcnRpY2xlSWQiOiJzYWZlLW91dGJvdW5kLW1lc3NhZ2luZyIsInJlZmVyZW5jZSI6IjlCbXVQUThCMmNubmlBa2prUm1RZTJTNm1ya2plaTVldU00UlljRGRIalVnIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI0MzMwNTg2MTl9.VVWmS8DF3NCVOT1wBIk6qN_kK7_AG5MzjPxr-AJTwpE"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "memo": "saylor:safe-outbound-messaging",
          "reference": "KsnwoXGKM1sadaunAzQM2jkQiz2FaHsetZp7jqhvqcX",
          "session": "eyJhcnRpY2xlSWQiOiJzYWZlLW91dGJvdW5kLW1lc3NhZ2luZyIsInJlZmVyZW5jZSI6IktzbndvWEdLTTFzYWRhdW5BelFNMmprUWl6MkZhSHNldFpwN2pxaHZxY1giLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQzMzA1ODYxOX0.Jt-SGUW9zQBpLgOvw4jRNQ-sLUj9AUJl9dZTOqE9_JQ"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "93259",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:safe-outbound-messaging",
          "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": "96144",
          "reference": "A4iyB1hL6nVuP6jY4v3fK51qKQzTvhSaLxFSSVGLKJUX",
          "session": "eyJhcnRpY2xlSWQiOiJzYWZlLW91dGJvdW5kLW1lc3NhZ2luZyIsInJlZmVyZW5jZSI6IkE0aXlCMWhMNm5WdVA2alk0djNmSzUxcUtRelR2aFNhTHhGU1NWR0xLSlVYIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjkzMjU5LCJleHAiOjE3OTI0MzMwNTg2MTl9.eQbSTGvTxkeNsMtCUubFHC_pxh6RlTU4Et8XqiV3d0c",
          "solUsdPrice": 104.01
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Safe outbound email and messaging - recipient resolution, approval binding and idempotent send",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "body": "A messaging workflow that resolves recipients, separates drafting from sending, scans sensitive content, binds approval to the final message and attachments, sends idempotently, and verifies delivery state without misrepresenting identity.",
              "c": "AI & Agents",
              "id": "safe-outbound-messaging",
              "t": "Safe Outbound Email and Messaging"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "body": {
                      "description": "Main body text",
                      "type": "string"
                    },
                    "c": {
                      "description": "Category of the guide",
                      "type": "string"
                    },
                    "id": {
                      "description": "Identifier of the record",
                      "type": "string"
                    },
                    "license": {
                      "description": "License identifier",
                      "type": "string"
                    },
                    "price": {
                      "description": "Price",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "t": {
                      "description": "Title of the guide",
                      "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": "2026-10-19T18:02:18.7Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-19T18:02:18.029Z"
    },
    "resource": "https://saylorinnovations.com/api/kb/safe-outbound-messaging",
    "serviceName": "Saylor Innovations Guide Library",
    "tags": [
      "outbound-messaging",
      "agent-safety",
      "email",
      "notifications"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Safe outbound email and messaging - recipient resolution, approval binding and idempotent send"
}

What the leaf hashes

{"body":"f7500e8ccae6bd9ecb03e24304ce8b2535c4c2c4a8e9b23a9bb75c085251c5cc","id":120293,"kind":"listing","method":"baseline/1","observed_us":1793025617614980,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/kb/safe-outbound-messaging","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x4c9ed12c5a1ddf83733e53e6484d0c5b4ac22556856ea322b05dd9166fabc34b
2. 0xad98caecf582d128e44441890fcf0d9d378cbfa621e7f13d5b6311a8d34f6629
3. 0x9ab9104fbad2cedb0fae5ec6dba0ab2bb5fb19cc9ecad97f8e0027945489dabf
4. 0xf6afdb08fa235169fbe80dddf2b264f7ace187f293dd08d259d224ed48f8d60b
5. 0xed6310398ca0e092a0018357cfccab192772429247d69ba1d6abd8356f174873
6. 0xdca96f0f19813588d9a30a3b30406b47a696703ce5fa3ba1e5f370ec3b7c8295
7. 0xf82e95142bceddb6a1b7b5a691bdfd89ff51304a64cf6de36446fe335e295a40
8. 0xbd6996e0eb4eaa2ab6f578aec862a64f65acf166174eeaa4a503a8c9809505aa
9. 0x6343b8ef0eb054a517227007b1c394c007c9fd7fc50d7bd17f8b70d9a1250bca
10. 0x32dd5960bea005a040bbd1369f1894182fe94230e0a86fab637abe9785a5b0d9
11. 0x4a13cd2655a1d8b39528cfa63482483519544a5eb593623bd8ca3eb463e263b6
12. 0x9c16024747eaca32d09963ccb001059f75dcd9bb8dfc221e5234d54d2b3388d9
13. 0x1ffd24a0422348bb2305058cc138e276511e1c074bf8139af5b773941f0e5de2
14. 0x88e326a39b26e2c125306c9d3805d14398ace088bba9a2a0aa376b811cfb201a
15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae