Evidence row 70277

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.x402node.dev/chain/airdrop-check"
    ]
  ],
  "name": "api.x402node.dev/chain/airdrop-check",
  "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": "Check whether a wallet holds or has claimed a specific airdrop/token contract balance on EVM chains, with symbol and formatted amount. airdrop check, claim eligibility, token balance check, airdrop claimed, wallet holdings Accepts payment on Base or Solana — either network works.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "address": "string",
              "chain": "string",
              "contract": "string",
              "token": "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": {
                    "address": {
                      "description": "Wallet to check (required)",
                      "type": "string"
                    },
                    "chain": {
                      "description": "ethereum, base (default), arbitrum, optimism, polygon",
                      "type": "string"
                    },
                    "contract": {
                      "description": "Airdrop/token contract address (required)",
                      "type": "string"
                    },
                    "token": {
                      "description": "ERC20 contract address (optional)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "address",
                    "contract"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-23T18:24:57.547Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-23T18:24:57.257Z"
    },
    "resource": "https://api.x402node.dev/chain/airdrop-check",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Check whether a wallet holds or has claimed a specific airdrop/token contract balance on EVM chains, with symbol and formatted amount. airdrop check, claim eligibility, token balance check, airdrop claimed, wallet holdings Accepts payment on Base or Solana — either network works."
}

What the leaf hashes

{"body":"7402e333b91361771a7ea6bd1c97b0bb998d9e0d3be5a10f4ca3fbac615f325d","id":70277,"kind":"listing","method":"baseline/1","observed_us":1793025480113450,"prev":null,"subject":"x402_bazaar:https://api.x402node.dev/chain/airdrop-check","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. 0x52286d7d54fe1489e17efe50a3e193dd1a4e481a2c792584e4c07cb46b2c2730
2. 0x85f80fae04daff49d2e0904cc0b4b17deb0bd860fd8c8481b728102061138149
3. 0x6cf04f8e7f5f43d80f38b6d1562eec70ff0c4a0ddf74be1ef84c0a3f123fdf34
4. 0xd250c911506de068e5d58cdff9ffdaead216ed3526b7fe851dc31cd98a71571d
5. 0xfbd61b8dcc986247710986ced4aa295508073fc8abc41a861bc712f28223ecc0
6. 0x0f3af9e3cf3bc20df5bbb6aea4ad5c47579e6a63a1a4b2cd554a0ff9a66a4f4a
7. 0xd094e127579b814a8dc280ae79bd44442af94eddebf2a0bbe0d68d30ad570fa8
8. 0xb7443a0aa5d128394c74433b3ac1144198d700326910d491b0566f187db5ca61
9. 0xa3dfdb53c4025622d53d5fb988577d591f092d6645e1102bbe13e36e1a01dac1
10. 0x56c4b9a8339bbeb0ffca530ff47780ea20783ddd975fbd4877c1c5fd864229b0
11. 0xa5ad1076807e948ee46c6ef88026aa55418c25a28faa967ff0fc965aa97c5a48
12. 0x94dd4ed7cf198df741ccda83eacc422aadb31119fc6e84c4a6d2f023453b7960
13. 0xd830c52e1e8095e014510110592485afcb02b9c9a36f85653e4891a8de941246
14. 0x0733993143f0230e79482cef2c38e95d98f9eafbe64a43cdc74a4545938a4167
15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae