Evidence row 72059

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://ca-tax-api-mainnet.lxtap.workers.dev/base/tx"
    ]
  ],
  "name": "Base Onchain Data",
  "owner_address": "0x2ecb9e1fcca7a62758c679f11bc3241466d181d8",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x2ECB9E1fcca7A62758c679F11bC3241466d181d8",
        "scheme": "exact"
      }
    ],
    "description": "Human-readable summary of a Base transaction: status, block and time, sender and recipient, ETH value, gas used and fee, method selector, and decoded ERC-20 transfers with token symbols and amounts.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "hash": "0xff80142e4591e95e4088a7f37838e359843151633209f62a3b39f85402cc7d06"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "blockNumber": 52946833,
              "chain": "base",
              "contractCreated": null,
              "fee": "0.000001440003084728",
              "from": "0xf87F67497C535f856670518a3577b2bfC1bEE976",
              "gasUsed": 130678,
              "hash": "0xff80142e4591e95e4088a7f37838e359843151633209f62a3b39f85402cc7d06",
              "methodSelector": "0x3593564c",
              "nativeSymbol": "ETH",
              "status": "success",
              "timestamp": "2026-10-22T15:30:13.000Z",
              "to": "0xd6145b2D3F379919E8CdEda7B97e37c4b2Ca9c40",
              "tokenTransfers": [
                {
                  "amount": "1.198173",
                  "from": "0x1C450D7d1FD98A0b04E30deCFc83497b33A4F608",
                  "raw": "1198173",
                  "symbol": "USDC",
                  "to": "0xf87F67497C535f856670518a3577b2bfC1bEE976",
                  "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                },
                {
                  "amount": "0.0005",
                  "from": "0xd6145b2D3F379919E8CdEda7B97e37c4b2Ca9c40",
                  "raw": "500000000000000",
                  "symbol": "WETH",
                  "to": "0x1C450D7d1FD98A0b04E30deCFc83497b33A4F608",
                  "token": "0x4200000000000000000000000000000000000006"
                }
              ],
              "value": "0.0005"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {
                    "hash": {
                      "description": "Transaction hash on Base",
                      "pattern": "^0x[0-9a-fA-F]{64}$",
                      "type": "string"
                    }
                  },
                  "required": [
                    "hash"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-23T08:36:19.54Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-23T08:36:19.421Z"
    },
    "resource": "https://ca-tax-api-mainnet.lxtap.workers.dev/base/tx",
    "serviceName": "Base Onchain Data",
    "tags": [
      "base",
      "onchain",
      "erc20",
      "token",
      "wallet"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Human-readable summary of a Base transaction: status, block and time, sender and recipient, ETH value, gas used and fee, method selector, and decoded ERC-20 transfers with token symbols and amounts."
}

What the leaf hashes

{"body":"b2aae2a0f15d77aaba9ca888029f783bc76547bee24eb503a1307836366507b5","id":72059,"kind":"listing","method":"baseline/1","observed_us":1793025485219916,"prev":null,"subject":"x402_bazaar:https://ca-tax-api-mainnet.lxtap.workers.dev/base/tx","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. 0x7aacfa4b3b5c07350610b8d3e87ebbaf50f77736acc427136d1199924ef74c58
2. 0xde3efe32d4f20ad86477b59b2594763012fca853eb61e57474d2c25f5889bc58
3. 0x03d2d54ede59cfb456c7d5668d656e3e38e8d78fd836a178ad08d5b466ce8742
4. 0x4c2e7ad32ca6e9592dff671ca1eebb1b9d2bd0d8701a430e4ab94e50c88dc425
5. 0xc88b10ea873ea48cc3faa637ee4100005bdc3d6a1d68e91c0dee2b25232c9137
6. 0x199864b8d8b2fe45d081143793ab410a9852b94449dc2a3e7b1a5e85218b967f
7. 0x2e0a4ef638659a5f1d7a0f9493e0af7fbe1e6adeaef5d4de831c28d2d442ddd3
8. 0xda5dbea28c9d4fca8e466b041ea2667b84525618b6b004f830505d2fd0758b8e
9. 0x34ef0eafe8a19be079847713fba11d65e6ba0dd49a522368ade2cd52bd35f7bc
10. 0x72004cfd0b5574eac5ee651ce41187d0c3a331b4bdf0bdb385f7d93decec1860
11. 0x1474b20023ac420a3be8200f14f9ac14f1ee93ff05411fa3760c28b2e50fb3dd
12. 0xa6406b1a5540d26e0cbd03bb274a01c10968fadb17913a6043bb9427ddfb71ba
13. 0x01c95624b1f2385ef774ee258a9ae58a4df07a1bdaa829de84e1d5201f3f39c2
14. 0x7721d38652b6444b18e1193824e50490ade04851ce6221771f6e374c4527d80f
15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae