Evidence row 125811

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402.apidirect.io/v1/substack/users"
    ]
  ],
  "name": "API Direct",
  "owner_address": "0x5d07cc2a0fb4eb123a525ca0b51cf6fb485014fc",
  "raw": {
    "accepts": [
      {
        "amount": "4000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 900,
        "network": "eip155:8453",
        "payTo": "0x5d07Cc2a0FB4Eb123A525CA0b51cf6fB485014fc",
        "scheme": "exact"
      },
      {
        "amount": "4000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "permit2",
          "facilitatorAddress": "0x93F6601151cCB08F333AB4B1CCcfb1e188c0bE44",
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 900,
        "network": "eip155:8453",
        "payTo": "0x5d07Cc2a0FB4Eb123A525CA0b51cf6fB485014fc",
        "scheme": "upto"
      }
    ],
    "description": "Search Substack authors and publication profiles by name or keyword.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "query": "lenny"
            },
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "page": {
                      "default": 1,
                      "description": "Page number for pagination (1-4). Each page returns up to 20 profiles.",
                      "maximum": 4,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "query": {
                      "description": "Search keyword (max 500 characters)",
                      "maxLength": 500,
                      "type": "string"
                    }
                  },
                  "required": [
                    "query"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "eip2612GasSponsoring": {
        "info": {
          "description": "The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract.",
          "version": "1"
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "amount": {
              "description": "The amount to approve (uint256).",
              "pattern": "^[0-9]+$",
              "type": "string"
            },
            "asset": {
              "description": "The address of the ERC-20 token contract.",
              "pattern": "^0x[a-fA-F0-9]{40}$",
              "type": "string"
            },
            "deadline": {
              "description": "The timestamp at which the signature expires.",
              "pattern": "^[0-9]+$",
              "type": "string"
            },
            "from": {
              "description": "The address of the sender.",
              "pattern": "^0x[a-fA-F0-9]{40}$",
              "type": "string"
            },
            "nonce": {
              "description": "The current EIP-2612 nonce of the sender.",
              "pattern": "^[0-9]+$",
              "type": "string"
            },
            "signature": {
              "description": "The 65-byte concatenated signature (r, s, v) as a hex string.",
              "pattern": "^0x[a-fA-F0-9]+$",
              "type": "string"
            },
            "spender": {
              "description": "The address of the spender (Canonical Permit2).",
              "pattern": "^0x[a-fA-F0-9]{40}$",
              "type": "string"
            },
            "version": {
              "description": "Schema version identifier.",
              "pattern": "^[0-9]+(\\.[0-9]+)*$",
              "type": "string"
            }
          },
          "required": [
            "from",
            "asset",
            "spender",
            "amount",
            "nonce",
            "deadline",
            "signature",
            "version"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792917947/bazaar-icons/9c187cd7bdaa9439.png",
    "lastUpdated": "2026-10-25T12:23:23.552Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-25T12:23:23.43Z"
    },
    "resource": "https://x402.apidirect.io/v1/substack/users",
    "serviceName": "API Direct",
    "tags": [
      "Substack"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Search Substack authors and publication profiles by name or keyword."
}

What the leaf hashes

{"body":"5dd582cf51d95cbff042514696d0616779f94334fa3ad6a9fcdb37bcaa6a507e","id":125811,"kind":"listing","method":"baseline/1","observed_us":1793025626736662,"prev":null,"subject":"x402_bazaar:https://x402.apidirect.io/v1/substack/users","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. 0x9350a577b837a48435dc276de74bce177a4535c2f3c0f2aab418c76a3851934d
2. 0x946caa6ff7f9edcf6f19f59bf257ce30aae1e92e3107bdf0bb905ca10d6c3fba
3. 0x25888e9cd1f788a766647cbfdb6fd0e2592a0a4b72a2d7746d12f1965fc3de55
4. 0x59a9ce566c1ae419c0493d8b1f18f6393ea90d535c9f77429185a7a0e11b9e83
5. 0xb8372a5d780c9a3b66c56f77aeef5485e52ab3b6e23f33795ef6eb871e634e8e
6. 0xa520624c249b0fc1639a4a6971a804db726b40ac2ccb7a259c029a72e23bc0db
7. 0x74cc1283ac77abe3672d529d45607c696147eb85465d6f36cc99d2fcc3368c84
8. 0x1cd847d00ecae0984b35e2c5ab01596ecf23b5f777d8e6890ef8f3257f537714
9. 0xf3ab634627a7a54eacde9afbed8150aecbe38beaacdc19ab2b3baf5b8ef3d60c
10. 0x578356ff984cd9d8af7804ab292b224cedc3adc7906f706cb4393c7f03af33b7
11. 0xdcd590752acb338329aec3087ddc69ef4b8fcbe0bb91a9b8e37e17c10a9dfe92
12. 0x3b55f6d5345bce3e1332e014f19526d25328fb6283d3518837a015c3621c0d1c
13. 0x45c1d3062bbe98a6b1540c7e2ccf6516eedd6ef07fdfeb1ba77ee6272970447c
14. 0xf0edabbb9ba0d643e5505d19d07637eb6f6aed0a1c7356af43ae7d84ae9ef0c5
15. 0xf0bd63870f0bb378fa300bd33563050dcb7b3e02b44eb3ee550c1c534ec4b246
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae