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Evidence row 3968301

Observed , by sync.x402_bazaar/1.

Kind
listing
About
source_record x402_bazaar:https://agent402.tools/api/chain/total-supply
Recorded
Previous row
#1507570
Body SHA-256
70ec6e869d663e17486a33cb62b975f0899f4eb813e83ab8af89f8321dc00368
Leaf
0x3f8cb99915bdc9361b61e2b7337dd35b05c819734e8f58d0cb76bb5352d09047

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agent402.tools/api/chain/total-supply"
    ]
  ],
  "name": "Token total supply",
  "owner_address": "0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "outputSchema": {
          "properties": {
            "contract": {
              "type": "string"
            },
            "decimals": {
              "type": "integer"
            },
            "network": {
              "type": "string"
            },
            "totalSupply": {
              "type": "string"
            },
            "totalSupplyFormatted": {
              "type": "string"
            }
          },
          "required": [
            "contract",
            "network",
            "totalSupply",
            "decimals",
            "totalSupplyFormatted"
          ],
          "type": "object"
        },
        "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
        "extra": {
          "name": "USDC",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:143",
        "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:43114",
        "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392",
        "extra": {
          "name": "USDC",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:1329",
        "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:10",
        "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
        "scheme": "exact"
      },
      {
        "amount": "5000",
        "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
        "extra": {
          "name": "Global Dollar",
          "version": "1"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:4663",
        "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0xcebA9300f2b948710d2653dD7B07f33A8B32118C",
        "extra": {
          "name": "USDC",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42220",
        "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0x3600000000000000000000000000000000000000",
        "extra": {
          "name": "USDC",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:5042",
        "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "permit2",
          "facilitatorAddress": "0x14fDa13953Fc30428938E6BF950d036e77214e52",
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
        "scheme": "upto"
      },
      {
        "amount": "1000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "J7aN3PLJnTCF5qpEnvJHJsnCjcGuqC2rYtEM8Gv3xwg",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "CCW67TSZV3SSS2HXMBQ5JFGCKJNXKZM7UQUWUZPUTHXSTZLEO7SJMI75",
        "extra": {
          "areFeesSponsored": true
        },
        "maxTimeoutSeconds": 300,
        "network": "stellar:pubnet",
        "payTo": "GDNJXCKW7ZM7GEEVP674TWPU26YJNBQ2FI4ZIPRKTPTNUEJMDHFJWWRL",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "31566704",
        "extra": {
          "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
          "tag": "x402-global-challenge"
        },
        "maxTimeoutSeconds": 300,
        "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
        "payTo": "C7IIHG7SPLPZ5H7ZT6HW3UV2OQMQQE6Y2HBNGZXSLRJULE42BEE2OY2XIE",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "GatewayWalletBatched",
          "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
          "version": "1"
        },
        "maxTimeoutSeconds": 604900,
        "network": "eip155:8453",
        "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0x3600000000000000000000000000000000000000",
        "extra": {
          "name": "GatewayWalletBatched",
          "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
          "version": "1"
        },
        "maxTimeoutSeconds": 604900,
        "network": "eip155:5042",
        "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
        "scheme": "exact"
      }
    ],
    "description": "The circulating total supply of an ERC-20, read from the token contract itself rather than from an aggregator, so it is the number the chain holds at the block you asked for. Returns the raw uint256 and the same figure formatted with the token's own decimals. A contract that does not implement totalSupply answers 422 rather than a fabricated zero. EVM chains: ethereum, base, polygon, arbitrum, optimism.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "network": "base"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "contract": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
              "decimals": 6,
              "network": "base",
              "totalSupply": "4182993441205067",
              "totalSupplyFormatted": "4182993441.205067"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "contract": {
                      "description": "0x ERC-20 token contract address",
                      "type": "string"
                    },
                    "network": {
                      "description": "ethereum | base | polygon | arbitrum | optimism (default base)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "contract"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "contract": {
                      "type": "string"
                    },
                    "decimals": {
                      "type": "integer"
                    },
                    "network": {
                      "type": "string"
                    },
                    "totalSupply": {
                      "type": "string"
                    },
                    "totalSupplyFormatted": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "contract",
                    "network",
                    "totalSupply",
                    "decimals",
                    "totalSupplyFormatted"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "builder-code": {
        "info": {
          "a": "bc_b4aw4uzd"
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": false,
          "properties": {
            "a": {
              "description": "App builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            },
            "s": {
              "description": "Service builder codes",
              "items": {
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "maxItems": 11,
              "type": "array"
            },
            "w": {
              "description": "Wallet builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "payment-identifier": {
        "info": {
          "required": false
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "id": {
              "maxLength": 128,
              "minLength": 16,
              "pattern": "^[a-zA-Z0-9_-]+$",
              "type": "string"
            },
            "required": {
              "type": "boolean"
            }
          },
          "required": [
            "required"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1788138502/bazaar-icons/478aced8e219894c.png",
    "lastUpdated": "2026-10-27T11:56:07.815Z",
    "quality": {
      "l30DaysTotalCalls": 9,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-27T11:56:07.626Z"
    },
    "resource": "https://agent402.tools/api/chain/total-supply",
    "serviceName": "Token total supply",
    "tags": [
      "crypto",
      "evm",
      "erc20",
      "supply",
      "token"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "The circulating total supply of an ERC-20, read from the token contract itself rather than from an aggregator, so it is the number the chain holds at the block you asked for. Returns the raw uint256 and the same figure formatted with the token's own decimals. A contract that does not implement totalSupply answers 422 rather than a fabricated zero. EVM chains: ethereum, base, polygon, arbitrum, optimism."
}

What the leaf hashes

{"body":"70ec6e869d663e17486a33cb62b975f0899f4eb813e83ab8af89f8321dc00368","id":3968301,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1794083490443825,"prev":1507570,"subject":"x402_bazaar:https://agent402.tools/api/chain/total-supply","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (195826 rows).

  1. 0x3f8cbe72838554fa434932cf253c5f1e4c468682d226b4eef39d066ad764d9c8
  2. 0xb465ecbb4c9c5925639d7b3c7efdc900c682ed36303b247366c8383f8d3f8d91
  3. 0xf8a2813b47d95edfe6330d00dc130c21f6c6f0d6cc7c74fab96f3a9fc67a5932
  4. 0xb1267b7ddbe50add3e7c19c9ca597edc7f9f2091c5fea3e66a7c9f092c885093
  5. 0x45597a16922caca86f9083d8421b605c0f663f581260a22bcc664f3b6fafbe08
  6. 0xcd41045161da48953e0ba11b4feb821af0556850613ca48af4365597f5bf91ad
  7. 0x538bb6f9683acae350fcd6fd2fbd893ec70e6c03e044821b12ea1205c5817943
  8. 0x051b7332a7274e7f994e41e15b619ab56ed81a3c554324541dc5dc4a0d1d2159
  9. 0xc9f82946bc1feb328766160bca287b5ba1f82bc0441eefa57b28d55c9313c4a3
  10. 0xf2803866e1eca47fc170b1a26490fac16f45e3937d4a0787cb2a771ea7e012e4
  11. 0xeee038d5bb7358cad1a0bd21293a1bdf485a966e2aa263884f2cc5f8feb2cb39
  12. 0x65fc922d0b91781f23bddd8b4a42519f2ec42aa86118bd94ccdd851356893820
  13. 0xa5a96e20a466cfec764384073f0fea792307c8ff464b459bce5b293e61ff85a4
  14. 0xb96cde31376f2620034d37eacb768d6239f6799d719ac01516ef133c0df4dda5
  15. 0xa3ca92229f3aac0e9b561aaa066ca1907adc3f0b1685587fa30369d41cf66004
  16. 0xf0a56561418cd0342a328707933cc222d8fa725efff7ffd081e0226ee8c46c0b
  17. 0x54292a94f447f1fd33c01b5c99da465043f11022958626a2ea562c457fef697a
  18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c
Day root
0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d
Chained
0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb
Published
On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa

How to check it · This row as JSON