Evidence row 73301

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://defi-api.agenticfi.wtf/api/chain/block-height/base"
    ]
  ],
  "name": "defi-api.agenticfi.wtf/api/chain/block-height/base",
  "owner_address": "0xb3e9391f04f791462ed2a1ebafabe254d7afe3a5",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xB3E9391F04f791462Ed2a1ebAfaBE254d7Afe3a5",
        "scheme": "exact"
      }
    ],
    "description": "Latest block number for a chain",
    "extensions": {
      "bazaar": {
        "category": "infra",
        "discoverable": true,
        "info": {
          "input": {
            "method": "GET",
            "pathParams": {
              "chain": "required (example: base)"
            },
            "queryParams": {
              "chain": "required (example: base)"
            },
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "properties": {
                    "chain": {
                      "description": "Required. Chain name (ethereum, base, etc.) Examples: base, ethereum, arbitrum",
                      "title": "chain (required)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "chain"
                  ],
                  "type": "object"
                },
                "queryParams": {
                  "properties": {
                    "chain": {
                      "description": "Required. Chain name (ethereum, base, etc.) Examples: base, ethereum, arbitrum",
                      "title": "chain (required)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "chain"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "pathParams",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        },
        "tags": [
          "block-height",
          "latest-block",
          "finality"
        ]
      }
    },
    "lastUpdated": "2026-10-12T09:50:51.615Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-12T09:50:51.372Z"
    },
    "resource": "https://defi-api.agenticfi.wtf/api/chain/block-height/base",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Latest block number for a chain"
}

What the leaf hashes

{"body":"24af9ade2307a22abb877e84feef3c17f01256f2b797b564c0c9a1e7d15efccf","id":73301,"kind":"listing","method":"baseline/1","observed_us":1793025487291529,"prev":null,"subject":"x402_bazaar:https://defi-api.agenticfi.wtf/api/chain/block-height/base","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. 0xa54cf1a5238181351aacc7222cc10f9f9fd8a1b447fbd2e5aeef628d1c1a09dd
2. 0x4065879a9b9ca0c96a6580baec747ece635054abc1b8963a3d5bc04c5c9315f9
3. 0x18b8752b6271df15d9c41ddc65598d0bea27202cfdb2ec685fca1f9a36f9d2e4
4. 0xf5b6ea270ac87b6bc9f007d40c91785a889bed2d25bd7a03cd4af50f01603656
5. 0x92ccfd34ae6edfbcfed547ebcb3f5c569aafaa4885afdbbd182aa2b15a78fca2
6. 0x1aa035b67419071ed2d4ba9443317591162bac0c8089476b9ef23778ba2982b1
7. 0x05bb6117404a0394f55e84cbeb91b64549ff10d452cfc997c9a3cf68b6a1a11b
8. 0x925ea8fd15173168e92884620e514d68568d42ad683c9ac3c29831346d818211
9. 0x5b246434376ca0995dd62493e4f2735f98c56a53ad1cb0e51dbfd4862a23a293
10. 0x494d50e7c2a667a94651588fb1c6bae6df468e826359a35ba4b503d878536df7
11. 0xf237135c66ca84b49bee4316c469fc0289ef400162349fc2344fca1bb98dbd0e
12. 0x21725c62783071369e87d9e0abedb3d8cc37bdab8d0d58308c28aeb7cfd2bc8c
13. 0xc34c13c58ba9c342ea1b833ac1882a4aea22777c4fd1092b2f83d3bac6b9f845
14. 0x428106f4ae4ec142f17aebf6fa50935242f8d3f1c211cf95d6351d03d11da2b7
15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae