Evidence row 117626

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://onchaincheck.dev/optimism/allowance"
    ]
  ],
  "name": "OP Mainnet Onchain Data",
  "owner_address": "0x2ecb9e1fcca7a62758c679f11bc3241466d181d8",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x2ECB9E1fcca7A62758c679F11bC3241466d181d8",
        "scheme": "exact"
      }
    ],
    "description": "ERC-20 allowance on OP Mainnet: how much a spender may transfer from an owner, whether the approval is effectively unlimited, the owner's balance, and the amount the spender could move right now.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "owner": "0x9B1e7350517c2C94a990e55aC6c20De37675c703",
              "spender": "0xFb4e4811C7A811E098A556bD79B64c20b479E431",
              "token": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "allowance": "60",
              "chain": "optimism",
              "owner": "0x9B1e7350517c2C94a990e55aC6c20De37675c703",
              "ownerBalance": "66.148476",
              "raw": "60000000",
              "spendableNow": "60",
              "spender": "0xFb4e4811C7A811E098A556bD79B64c20b479E431",
              "symbol": "USDC",
              "token": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
              "unlimited": false
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {
                    "owner": {
                      "description": "Address that granted the approval",
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "type": "string"
                    },
                    "spender": {
                      "description": "Address allowed to spend",
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "type": "string"
                    },
                    "token": {
                      "description": "ERC-20 contract on OP Mainnet",
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "type": "string"
                    }
                  },
                  "required": [
                    "token",
                    "owner",
                    "spender"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-24T09:09:48.683Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-24T09:09:48.544Z"
    },
    "resource": "https://onchaincheck.dev/optimism/allowance",
    "serviceName": "OP Mainnet Onchain Data",
    "tags": [
      "optimism",
      "onchain",
      "erc20",
      "token",
      "wallet"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "ERC-20 allowance on OP Mainnet: how much a spender may transfer from an owner, whether the approval is effectively unlimited, the owner's balance, and the amount the spender could move right now."
}

What the leaf hashes

{"body":"3ec39933b39ced52dfe47922700b5e9a4a09b694f8f0993a7495d4618aec003d","id":117626,"kind":"listing","method":"baseline/1","observed_us":1793025611694379,"prev":null,"subject":"x402_bazaar:https://onchaincheck.dev/optimism/allowance","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. 0x83a1b5ff339cd2bd49463556721f505c31b196a1b18a176e19509fe09f34ff9e
2. 0xb72953a79f1877b71e41d97f87d019f028a6b92debe9a135ddb1ca8bcbaddb8e
3. 0xab5369b6e88343a3b664ec4815a9943765e9eff0e58b928b4b3ba6c337def6c5
4. 0x8b42bd0f3d0254aad521b0f1c6f57b70212b95f6cb88a3ea4e7792249c464b9a
5. 0x761129751276b6caaf0c9ef3db6e79620426279ca1702a262f192a130a2dd124
6. 0x32c1043beee4d6eda818ffa72bfdd5f3e43e524caccd686ee8b9c9f78b109f69
7. 0xb6f02b777fe4bb0c98ac159ef7a29f9bc625a0f28e56ef63f4382a6759200489
8. 0x88f430c9019a7c1b044367d50abf45f9e1a5a5150b95a4ba120f9a9c7dce608f
9. 0x084ded26d514a29921994ce7190e842f169857c96b5278a12360e5d0e47c3360
10. 0xee19b1ec06299bfa7d1996bbbc62f4c302304457b0e425812bc2df6d4ce7c782
11. 0x6e037384448a2bbd201b4e7e9e6e447d7254d0d2926b3fd2e81fdf99eae4a06b
12. 0xfdaa032291ded0df2cf35d6e9dc6e7a2643d0fe027dd3ab321971f1f7bf69147
13. 0x91c2ae93ec20c7fed5088112fe3941ca622dfb3f8f1022c4844726c361244bd4
14. 0x0eff463856b0992d53ab7d8c0b97c71541413358bdd445710c1e4b6aeb4d8f78
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae