Evidence row 218705

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.x402node.dev/chain/btc-fees"
    ]
  ],
  "name": "api.x402node.dev/chain/btc-fees",
  "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": "Bitcoin recommended fee rates (sat/vB) for fast/half-hour/hour/economy/minimum via mempool.space. Use no params. Built for AI agents constructing BTC transactions, fee estimation UIs. 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": "2026-10-26T05:52:17.032Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-26T05:52:16.752Z"
    },
    "resource": "https://api.x402node.dev/chain/btc-fees",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Bitcoin recommended fee rates (sat/vB) for fast/half-hour/hour/economy/minimum via mempool.space. Use no params. Built for AI agents constructing BTC transactions, fee estimation UIs. Accepts payment on Base or Solana — either network works."
}

What the leaf hashes

{"body":"840e9b053feb2f885a845276c2906cb7f10d385b51ff5eaeaa1cac39b5dac581","id":218705,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793026643189883,"prev":70282,"subject":"x402_bazaar:https://api.x402node.dev/chain/btc-fees","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. 0xafe8c2f1216b02d39ae97b727c196092f5ffd42a98705b06c7b47bccfed845b6
2. 0x3b3d76603bad84bdddc817e36738d4eac821a8b136b948e14ab59e4ba3323ad3
3. 0x54b3dd2ed67e27d189143e50f4d971509b6162b943e2cbdacb90097356eeb657
4. 0x7d3ea58a23cd6dbc5c097b5ddd2cdcb20ad4c7316a3c9dba95c0f9b2ab08b259
5. 0x131d54e9ed04a684487436b4642a87c1b8a7c1d4ee8ecbeb40427760dea8d58c
6. 0xd06d8396f24c4a954dca556bd75b51e3bf57103179aebba412b2a69b75e97b7d
7. 0x4f8ffc96f312291be1af5503a1f50719fe908eb90072e688bff6453ea1f4bbed
8. 0x8ecb8a2a82ac1cdbe71dadcceb250f92a19f382dcdd89f784e7e4fca6249fe8a
9. 0x093577cc3103152dbae7a3e2746efa7cf14907771bf3a1d81b476910716da144
10. 0x88e14554875d47fe3e9d547b6e116a59cb4b1bba1165fecb62ab9dc0789b5291
11. 0x3bebef69be15ae49fdf78639d05bdb957a983cd3565294a33f1d0a8a41913db8
12. 0xd17258d4f01d074dcaf38f36218b36058144c3d50c3b488953a815c54d6674d2
13. 0xe292b5a99219f136bce6647ce74b21240a1c7331d2475b1839220fd363c94217
14. 0x3b4dba7d874fc323b0a364140a9c60f37bf547fe671897653118a9873fe03420
15. 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae