Evidence row 407817

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.nexismvp.com/market/gas-decision"
    ]
  ],
  "name": "Kronos Gas Decision",
  "owner_address": "0x3b59f268ebc38c5f43b8b9be37238bf43378ad87",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x3B59f268EbC38c5F43B8B9bE37238bf43378Ad87",
        "scheme": "exact"
      }
    ],
    "description": "Real-time Base mainnet gas price signal (low/normal/high vs. recent average) — a recommendation on whether now is a cheap time to transact. Experimental/informational only — not financial advice.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "chain": "base",
              "current_base_fee_gwei": 0.005,
              "decision": "normal",
              "ratio_to_recent_avg": 1,
              "recent_avg_base_fee_gwei": 0.005
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {},
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "chain": {
                      "type": "string"
                    },
                    "current_base_fee_gwei": {
                      "type": "number"
                    },
                    "decision": {
                      "enum": [
                        "low",
                        "normal",
                        "high"
                      ],
                      "type": "string"
                    },
                    "ratio_to_recent_avg": {
                      "type": "number"
                    },
                    "recent_avg_base_fee_gwei": {
                      "type": "number"
                    }
                  },
                  "required": [
                    "current_base_fee_gwei",
                    "decision",
                    "chain"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-26T19:16:06.328Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-26T19:16:05.93Z"
    },
    "resource": "https://api.nexismvp.com/market/gas-decision",
    "serviceName": "Kronos Gas Decision",
    "tags": [
      "crypto",
      "gas",
      "base",
      "ethereum"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Real-time Base mainnet gas price signal (low/normal/high vs. recent average) — a recommendation on whether now is a cheap time to transact. Experimental/informational only — not financial advice."
}

What the leaf hashes

{"body":"d443280c552a4faebecb2600d2dbf24ae13e75ee8fb8f6808a28db83ed395ec2","id":407817,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793080252532321,"prev":283993,"subject":"x402_bazaar:https://api.nexismvp.com/market/gas-decision","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. 0x2c38d3698e80d9718cff6f4b8f7baac61267937ae964a5445d2ed40fa9fc2a7b
2. 0x96e410309117a92aef7f111509c79a722f312b526470badaf40f3e65d4389a66
3. 0x41a29463e2ddb43bbe52209efe213d1c66440a90f6bdbb67cdec1e77ac0e112a
4. 0xb5883a8ec24450714dd38564bbc18b8a7c63dc6620792d54fcf810b310b33181
5. 0xfa676f724a71bac1564599f40375ae1be3e26787f61b767ec0c2e44f2eae0e74
6. 0x75ea1c7bed089a95c9fc2ea256ef5093aa404c30df50d1b590b0b999f3b06c0f
7. 0xd73e53688222a11576cf49f4341c679257d67db022a519c49f43bc2b04e7bfb9
8. 0x371a93977ae9840c363827b601b6e52d13fe10e3c04d16f2d5b492fdec4d3935
9. 0x540c7b8a35bbad5de0469e2176313ac67073a2c15c35a52627e0f26bb0d11541
10. 0x9f38b2d0cdf030f1ca9ca51487a6c76c5a9623e4e45659d35a1fa1a6e036ec3c
11. 0x763c44f231f5e75793734fa25fb1791b7269f0745f8d34ba7ac82bc2806e3367
12. 0x7ba1b835277802a22a6f62a758420094404a75d3c14f34dd88b403fbf174b26b
13. 0xf9e544d10b80657275e1e196da89ba5336a7cc49eaa0d6d801fb5d632cf5deec
14. 0x8ff18b1523f9fbdd16a5796cbe184b46854c06256508af8de5509b598370c725
15. 0xa383a1cfe9b3f6af67eb4c7642564b9424d46d7fca90e7ba175d549f8b67dd0c
16. 0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4