addrbookFor publishers
← The evidence ledger

Evidence row 117611

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://onchaincheck.dev/eth/allowance
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
e9b797ada172c78d5dcd8cf6b6a666617cd1b1de70cccab8aaf30b758dce1259
Leaf
0x4ca091ef82909277bdde0e37979fa4705bc04a60ccbd29992b202bd740943fa1

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://onchaincheck.dev/eth/allowance"
    ]
  ],
  "name": "Ethereum 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 Ethereum: 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": "0x72aB1B98b60a9251Cc00ab1C3bBe9F48CdFdCA40",
              "spender": "0x1231DEB6f5749EF6cE6943a275A1D3E7486F4EaE",
              "token": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "allowance": "115792089237316195423570985008687907853269984665640564039457584007913032.819903",
              "chain": "eth",
              "owner": "0x72aB1B98b60a9251Cc00ab1C3bBe9F48CdFdCA40",
              "ownerBalance": "0",
              "raw": "115792089237316195423570985008687907853269984665640564039457584007913032819903",
              "spendableNow": "0",
              "spender": "0x1231DEB6f5749EF6cE6943a275A1D3E7486F4EaE",
              "symbol": "USDC",
              "token": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
              "unlimited": true
            },
            "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}$",
                      "type": "string"
                    },
                    "token": {
                      "description": "ERC-20 contract on Ethereum",
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "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": "2026-10-24T08:29:28.191Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-24T08:29:27.928Z"
    },
    "resource": "https://onchaincheck.dev/eth/allowance",
    "serviceName": "Ethereum Onchain Data",
    "tags": [
      "ethereum",
      "onchain",
      "erc20",
      "token",
      "wallet"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "ERC-20 allowance on Ethereum: 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":"e9b797ada172c78d5dcd8cf6b6a666617cd1b1de70cccab8aaf30b758dce1259","id":117611,"kind":"listing","method":"baseline/1","observed_us":1793025611678128,"prev":null,"subject":"x402_bazaar:https://onchaincheck.dev/eth/allowance","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).

  1. 0x4ca0a259b3a2bedcc436c518cc50f387e98d550929dfba60ac9f36233779cc91
  2. 0x66088a70df3e2e777c816f999bcf102e40478714435c14525ea70abee3633bc8
  3. 0xe62dd22f4338a9d90e019e7dd681be9b8661868137e00dbd48b9b1ed81bcc610
  4. 0xb12e7e6abcce1cd93a0d3343c356283f21de372899ea9eaff3f6bb26111428b3
  5. 0x9a03fd7f6a94b2bea3fa6faa62f12d47913f493e351ecf6dfe73234b9dc05369
  6. 0xdca96f0f19813588d9a30a3b30406b47a696703ce5fa3ba1e5f370ec3b7c8295
  7. 0xf82e95142bceddb6a1b7b5a691bdfd89ff51304a64cf6de36446fe335e295a40
  8. 0xbd6996e0eb4eaa2ab6f578aec862a64f65acf166174eeaa4a503a8c9809505aa
  9. 0x6343b8ef0eb054a517227007b1c394c007c9fd7fc50d7bd17f8b70d9a1250bca
  10. 0x32dd5960bea005a040bbd1369f1894182fe94230e0a86fab637abe9785a5b0d9
  11. 0x4a13cd2655a1d8b39528cfa63482483519544a5eb593623bd8ca3eb463e263b6
  12. 0x9c16024747eaca32d09963ccb001059f75dcd9bb8dfc221e5234d54d2b3388d9
  13. 0x1ffd24a0422348bb2305058cc138e276511e1c074bf8139af5b773941f0e5de2
  14. 0x88e326a39b26e2c125306c9d3805d14398ace088bba9a2a0aa376b811cfb201a
  15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
  16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
  17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON