Evidence row 555304

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.x402node.dev/chain/base-gas"
    ]
  ],
  "name": "api.x402node.dev/chain/base-gas",
  "owner_address": "0x4466d4a84b7c49a6a094ec6eef4a0712d6dd125e",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
        "scheme": "exact"
      },
      {
        "amount": "5000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
        "scheme": "exact"
      }
    ],
    "description": "Base L2 mainnet current gas price (gwei) via LlamaRPC eth_gasPrice. Use no params. Built for AI agents pricing Base swaps, x402 settlements, and L2 deploy costs, base gas fee estimate Accepts payment on Base or Solana — either network works.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {},
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T10:04:19.345Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 5,
      "lastCalledAt": "2026-10-27T10:04:19.187Z"
    },
    "resource": "https://api.x402node.dev/chain/base-gas",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Base L2 mainnet current gas price (gwei) via LlamaRPC eth_gasPrice. Use no params. Built for AI agents pricing Base swaps, x402 settlements, and L2 deploy costs, base gas fee estimate Accepts payment on Base or Solana — either network works."
}

What the leaf hashes

{"body":"59027da60bf8722cdec48da33daf7cd3b43788e9d6866c3754cd7062991702b8","id":555304,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133787248492,"prev":456372,"subject":"x402_bazaar:https://api.x402node.dev/chain/base-gas","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xae7ea16955036f29d5842d029742f765e1d43f7fadbc6aad5a604ebcbf7c8cc8
2. 0xd4e51d058bce06856184e29a47efa364c5ea211bbe990dab9b1486073af9f1c4
3. 0xd5b9702e4797f778d991af2be71e22a84ed22f58a51f5765f174b1f0ba3b7e62
4. 0x1c7fcb7de73e5eb2a29119d1bb53c82b421ed717bb8abae8afd5fc00ec27fbc0
5. 0xfc505218fa2d9c204c01200183ca04a7c362bd1b698563bb61cb7ad5f1f38c42
6. 0xd9e0d2093c6c16894e4fd133df68e34279316710afdc8dcd2a267d505258e247
7. 0x2260fbafc1f624ab2811131cf975f33cd55088f6fe8384031bf2e50473543db5
8. 0x26df752ed65e73709e1de1b425146065a783ab5e5a0b5c49b7358c73a5f3b8a1
9. 0x2a6886d857530986010d0f8798901a9e4e142d06674a631b21ef7d530d80fcda
10. 0xa5ffb5d829e35abb8a7024770bc45faaca823f74fa12f80132d8795a4fb4ea63
11. 0x1554a869917424e4ca64b7d38e6ca6cacdec1cf2cb654fa2dcd18eed4dcb9776
12. 0x4cddbeeac8c1524fc617036c97fadc68ab084810bb271f11ef4210796d067f9d
13. 0x4c82d20074b9d7d77e728b0250a2c662412d8d0f7eccff2d8100bfcc4434597f
14. 0x98c6ed3e7b5bb7f1757a8660af410226a11dd563bf83010040c2ce059ab45e54
15. 0xec7bb68216a4deb1960acfbbd75da88f7e468b58adb9cf3ec62f2790e46508b3
16. 0x64c405a28e8819716221eb2529fe4ce277ab08025e17e685cbd5ece75ceb75c7
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4