Evidence row 71389

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://automaton-tx-explainer.vercel.app/v1/base/tx"
    ]
  ],
  "name": "Base Tx Explainer",
  "owner_address": "0x679af3a893edd0aef4ac4c7776ba581b238c0717",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x679af3a893eDd0AeF4ac4c7776Ba581b238C0717",
        "scheme": "exact"
      }
    ],
    "description": "Explain a Base transaction: status, fee, decoded method + args (openchain signature DB), and ERC-20 transfers with symbols and human amounts.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "hash": "0x45be0cb297d8e90038b2113ea608e7a80d84c5e8d9e9b649a2d1f027e9243d6e"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "chain": "base",
              "fee": "0.00000027",
              "method": "transfer(address,uint256)",
              "status": "success",
              "summary": "success · transfer · 1 token transfer(s)",
              "tokenTransfers": [
                {
                  "amount": "1.028272",
                  "from": "0x...",
                  "symbol": "USDC",
                  "to": "0x..."
                }
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "hash": {
                      "description": "Base transaction hash",
                      "pattern": "^0x[0-9a-fA-F]{64}$",
                      "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": "2026-10-15T14:53:38.461Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-15T14:53:38.325Z"
    },
    "resource": "https://automaton-tx-explainer.vercel.app/v1/base/tx",
    "serviceName": "Base Tx Explainer",
    "tags": [
      "base",
      "onchain",
      "evm",
      "crypto"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Explain a Base transaction: status, fee, decoded method + args (openchain signature DB), and ERC-20 transfers with symbols and human amounts."
}

What the leaf hashes

{"body":"9a583bfe44113cf496772dbcf9cbdf3bb1d7ff8da2ffa11a3cafc1ccae2b95cb","id":71389,"kind":"listing","method":"baseline/1","observed_us":1793025482089584,"prev":null,"subject":"x402_bazaar:https://automaton-tx-explainer.vercel.app/v1/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. 0x67259313b1e447b7f56dbc0c92e8ce3b8b5d8eaa7a2d4c3ba80784d58688cdae
2. 0x82d300dc8185e31ac5eba61d1d352caa500896288a325b32bdf7df01d67c533e
3. 0x10a4460c27f52b4277a30923c4624bd11244db1eb9f11c1db6c1cc078ba69dae
4. 0xc8f3cefc10044d652c91539f4a48c1f0b1bd790ecb21cd94729d3225aafd42aa
5. 0x4067fef30a37c1371dc84a6442b4256093d2e6fdb38c8d8fb300dd63345cad72
6. 0xad200d8512115e808b7bb5ae4b4a53b030d82f4489f787c06026f812072d4cd9
7. 0xa0ecd2c10dab1f3dc3204bdcd5410373a28256b20449616f8798f89ff5938a72
8. 0x51cf0851546fe88aabbf15ff3cd5ec59da268f44404d0a2b987fbe7f721fb7a3
9. 0xe49cd474b6e588aa72674a2bd7fec0e694068e34c3a0dac8b4f6322f24150951
10. 0x8abff743dd157f0225d59527cbd5a558fe9044a13b8251e90cdf945d405603a0
11. 0x13951c97c827e2025801573dada28cfb5f8038c9b4de741f9d526cb67b3fe605
12. 0x260682fd6ecd274e73505c5e0bd798abdd0e702afca4f8eebd4331b607a6b175
13. 0x5f350d70c252ff1169c0210fd45fce1b0ab8d7316f048741a9e90a6c8cb65dcf
14. 0x9a79c65e077cd9da9d436b3ade6f5ddc0d244510c4d5903ef2f02d81205f7666
15. 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae