Evidence row 65632

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.checkpoint402.com/v1/tx-explain"
    ]
  ],
  "name": "Checkpoint402 Tx Explainer",
  "owner_address": "0x739e2381939f558046e6041e1853b49b8033db6e",
  "raw": {
    "accepts": [
      {
        "amount": "30000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x739E2381939F558046E6041e1853B49B8033DB6e",
        "scheme": "exact"
      }
    ],
    "description": "Explains any Base or Ethereum transaction in plain English: who sent what to whom, which tokens/NFTs moved, the function called, success/failure and fee — plus the structured decoded data.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "chain": "base",
              "hash": "0xcbb626797fd53a67c9342c1541bc5e56a447b77a3efe490b5d7b2876be3b7205"
            },
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "chain": {
                      "description": "Chain (default base)",
                      "enum": [
                        "base",
                        "ethereum"
                      ],
                      "type": "string"
                    },
                    "hash": {
                      "description": "Transaction hash (0x + 64 hex chars)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "hash"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-23T23:31:19.176Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-23T23:31:18.919Z"
    },
    "resource": "https://api.checkpoint402.com/v1/tx-explain",
    "serviceName": "Checkpoint402 Tx Explainer",
    "tags": [
      "blockchain",
      "transaction",
      "explainer",
      "base",
      "ethereum"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Explains any Base or Ethereum transaction in plain English: who sent what to whom, which tokens/NFTs moved, the function called, success/failure and fee — plus the structured decoded data."
}

What the leaf hashes

{"body":"62defba9810ab969cb69b87cd8c4b4fb5f2648393a8cb12918f4c72e92a67948","id":65632,"kind":"listing","method":"baseline/1","observed_us":1793025458745890,"prev":null,"subject":"x402_bazaar:https://api.checkpoint402.com/v1/tx-explain","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. 0x90df0f0e5b1aa82eb9df43d66e04bad2b6b766377593957020795f6da96449f5
2. 0x2c4731d7a2d918cabeac6beeacbfd4a821363fdd611ce2757d268f8dea3c3bb2
3. 0xce27e301955b727bebd321324a49ad7fe8e8d16eecd032b016ccb2a6af99663b
4. 0x48ff47ecf342ffd406c4795c3080002fb0a128ef225a57657ec9031cf49c92c2
5. 0x61fa0caff1a2464fa9b8fd7b03265f929f9b4f6742b938ce2664a99c7712094e
6. 0x87c77dcee5ec7542bf1b8ae5e271484d3c71266733a62e548204f5b643431ac5
7. 0x80f35866fc44a5e06bb5750c617a781822c601219a93350dc388c53976409eb2
8. 0xef2b384a41940ec300e4d41620bf7c313b2f28094838f19e9346d5c682b39b4f
9. 0xd6cb299383c65630bd27f540514dc02fdf258e87279dfa074726ec00f5cb65df
10. 0x5d6495469a224b0c8739fabdb7652717dcf778029d8f8eb34051fdf9d5ed5ee5
11. 0x6c9f1a764b7efa4ca549bf1cbbf8b397ce3c92cc35a0932f2dbf0706ae892c07
12. 0xe131b224ee3c295dfa790b458d9daa11e2a32e6131c280c6be7d92190c756a88
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