Evidence row 548450

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.x402node.dev/chain/gas-oracle"
    ]
  ],
  "name": "api.x402node.dev/chain/gas-oracle",
  "owner_address": "0x4466d4a84b7c49a6a094ec6eef4a0712d6dd125e",
  "raw": {
    "accepts": [
      {
        "amount": "6000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
        "scheme": "exact"
      },
      {
        "amount": "6000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
        "scheme": "exact"
      }
    ],
    "description": "Live gas oracle with slow, standard and fast fee tiers computed from recent block fee history - current base fee plus recommended priority fees and the cost of a standard transfer, so agents can set the right gas price and decide when to submit transactions. gas oracle, gas price, recommended gas, gas fee tiers, optimal gas, priority fee, gas estimate, when to transact Accepts payment on Base or Solana — either network works.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "chain": "string"
            },
            "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": "base (default), eth, arbitrum, optimism, polygon, bsc",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T08:48:11.825Z",
    "quality": {
      "l30DaysTotalCalls": 101,
      "l30DaysUniquePayers": 21,
      "lastCalledAt": "2026-10-27T08:48:11.584Z"
    },
    "resource": "https://api.x402node.dev/chain/gas-oracle",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Live gas oracle with slow, standard and fast fee tiers computed from recent block fee history - current base fee plus recommended priority fees and the cost of a standard transfer, so agents can set the right gas price and decide when to submit transactions. gas oracle, gas price, recommended gas, gas fee tiers, optimal gas, priority fee, gas estimate, when to transact Accepts payment on Base or Solana — either network works."
}

What the leaf hashes

{"body":"3db933a50c9c096ec462aca65aa865edac4de82e80c66963f67f6dfa0e68d835","id":548450,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133306101356,"prev":453269,"subject":"x402_bazaar:https://api.x402node.dev/chain/gas-oracle","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. 0x056a4376de80f95c8ec79655edd1b1cfea64020af9f293f75c9457b17d43e66f
2. 0xeafc0ab667fa1bd0162b7f8889e217b5457b4b1aa5af657e6a07015128ba3f0f
3. 0xa1048191f0a1e022b1a238b423b847e059c23c37b0bf53da2b593046527b8958
4. 0xd09fb95fd7acd8e6fa79d2e463cfe59eac3f86efd4c8e499940dab5228c5c710
5. 0x3c0eea5dacdd10e0306698d11a78d333316269175c7453057c9146d7105263f2
6. 0xbe3e14dd723c9597168473b81897f6a5c2bf5734653d04497b9be258aefa965c
7. 0x360ea31602ed8ec035df7d240ae3e7afc73fb71d78cb581f87c1b9844851ce62
8. 0xed967c253b07aeaa4e800ab0c9b05993add9521e8a18e55608eb2ffc2091aebc
9. 0xeb2472852a1eafedb3bccd80440f3908fac207a9c436bf33562f30396a727475
10. 0xb27ac0d01327baad8d269ce2b075ef31dd979ff9449edcae844018feed87c9f6
11. 0xe9db0158b4c259b87fc427fe2d76b9a481e59053039dd07a06261cfea061d5f8
12. 0x6d7e35c9db9477d49c0dca0654b8a6378e19a394f96efba2061b6ef0ea5355fe
13. 0x7e8c79bd0dee073006d03de64eaf1047d3bfd30041ac4fc765479ffd5a092e62
14. 0x29e12cb67839430fa64ab8bd05d52bab606f2978d9e6d2fb094fece9438fd4de
15. 0x2cf27e8a181d60d0dd27c186c2eddfcbb4e8fa71cf66feeb55a4d730e15ee8c4
16. 0x518b93854db03dc9fc938883abf30da6eaae5ae0d4336903968fd32a7df8c71b
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4