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Evidence row 119725

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/evm/arbitrum/contract/:address
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
0c0d49f172a834e08882b99262dbdff67e45238034ca543f28c465edbc9e3db8
Leaf
0x731b0aae46b3743ef9c33e692c398a44b7a745c04d84d8097061f37af84aadf7

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/evm/arbitrum/contract/:address"
    ]
  ],
  "name": "Saylor Innovations On-Chain Data",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:evm:contract:arbitrum/con",
          "name": "USD Coin",
          "note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:evm:contract:arbitrum/con",
          "name": "USD Coin",
          "note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:137",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:evm:contract:arbitrum/con",
          "name": "USD Coin",
          "note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:42161",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "memo": "saylor:evm:contract:arbitrum/con",
          "reference": "G36VokCGCNk7QNC4fpsNY1SXmr7GGGRmVPo8aPGhZDpZ",
          "session": "eyJhcnRpY2xlSWQiOiJldm06Y29udHJhY3Q6YXJiaXRydW0vY29udHJhY3QvMHhhZjg4ZDA2NWU3N2M4Y2MyMjM5MzI3YzVlZGIzYTQzMjI2OGU1ODMxIiwicmVmZXJlbmNlIjoiRzM2Vm9rQ0dDTms3UU5DNGZwc05ZMVNYbXI3R0dHUm1WUG84YVBHaFpEcFoiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjM2NjAxNDY5N30.ffwHrugQvm6pXLGIowiFJcI7nLOQF92i77vkO5SyrNI"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "memo": "saylor:evm:contract:arbitrum/con",
          "reference": "8ejqaENwhrrwieT3Lnyd1MqRtm9MMbv6K6WUD9Zhhvof",
          "session": "eyJhcnRpY2xlSWQiOiJldm06Y29udHJhY3Q6YXJiaXRydW0vY29udHJhY3QvMHhhZjg4ZDA2NWU3N2M4Y2MyMjM5MzI3YzVlZGIzYTQzMjI2OGU1ODMxIiwicmVmZXJlbmNlIjoiOGVqcWFFTndocnJ3aWVUM0xueWQxTXFSdG05TU1idjZLNldVRDlaaGh2b2YiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjM2NjAxNDY5N30.dRMnbZRb90JnFmL2sBGu4OF177N6LSbHryBNbfnryaM"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "93539",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:evm:contract:arbitrum/con",
          "native": true,
          "note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
          "quotedLamports": "96432",
          "reference": "3Jee6wxU9C6yMzA8a33DymNaGW6EJTo3CAt9gne8Cioj",
          "session": "eyJhcnRpY2xlSWQiOiJldm06Y29udHJhY3Q6YXJiaXRydW0vY29udHJhY3QvMHhhZjg4ZDA2NWU3N2M4Y2MyMjM5MzI3YzVlZGIzYTQzMjI2OGU1ODMxIiwicmVmZXJlbmNlIjoiM0plZTZ3eFU5QzZ5TXpBOGEzM0R5bU5hR1c2RUpUbzNDQXQ5Z25lOENpb2oiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTM1MzksImV4cCI6MTc5MjM2NjAxNDc1N30.A57CaJ8TlvRmNy8m-xdT6nhvuAJzmyN-ytQjllwv4o0",
          "solUsdPrice": 103.7
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Arbitrum contract introspection - wallet vs contract, proxy detection, bytecode size and ERC-20 name, symbol and supply",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "pathParams": {
              "address": "EVM wallet address (0x-prefixed, 40 hex characters)"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "bytecode_bytes": 1485,
              "chain": "base",
              "is_contract": true,
              "proxy": {
                "admin": null,
                "implementation": "0x3333333333333333333333333333333333333333",
                "is_proxy": true,
                "standard": "EIP-1967"
              },
              "token": {
                "decimals": 6,
                "name": "USD Coin",
                "symbol": "USDC",
                "total_supply": "4100000000"
              }
            },
            "type": "json"
          }
        },
        "routeTemplate": "/api/evm/arbitrum/contract/:address",
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "address": {
                      "description": "Account or contract address",
                      "type": "string"
                    },
                    "bytecode_bytes": {
                      "description": "Size of the contract bytecode in bytes",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "chain": {
                      "description": "Blockchain the data is for",
                      "type": "string"
                    },
                    "eip7702_delegate": {
                      "description": "Delegate contract address when the account uses an EIP-7702 delegation, otherwise null"
                    },
                    "is_contract": {
                      "description": "True when the address holds contract code",
                      "type": "boolean"
                    },
                    "proxy": {
                      "description": "Proxy pattern detected, if any",
                      "type": "object"
                    },
                    "token": {
                      "description": "Token the values refer to",
                      "type": [
                        "object",
                        "null"
                      ]
                    }
                  },
                  "required": [
                    "chain",
                    "address",
                    "is_contract"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "json",
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1790235422/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-18T23:24:54.834Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-18T23:24:54.562Z"
    },
    "resource": "https://saylorinnovations.com/api/evm/arbitrum/contract/:address",
    "serviceName": "Saylor Innovations On-Chain Data",
    "tags": [
      "evm",
      "arbitrum",
      "contract",
      "onchain"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Arbitrum contract introspection - wallet vs contract, proxy detection, bytecode size and ERC-20 name, symbol and supply"
}

What the leaf hashes

{"body":"0c0d49f172a834e08882b99262dbdff67e45238034ca543f28c465edbc9e3db8","id":119725,"kind":"listing","method":"baseline/1","observed_us":1793025616414117,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/evm/arbitrum/contract/:address","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. 0x731b00a71fed5f5e0feeaa89e8905b84f73c5a1f8c5e3508c5c82e67818d21a2
  2. 0xd8ab971cc6e4f93662416380922a320e8bfd9783a89e4fac89ff824b0844b8aa
  3. 0x574a2c838c2d1499d97f3cdba08a095171952721851c4f29ca955c5fa210bc9a
  4. 0xe5a3a783529c57689fbecd314592a55c9d3da9da9aae1d22a833f14be63edf86
  5. 0x0ac451219e35940ded39af91090ce346ad55de9819e00407e285908ce122069e
  6. 0x7ef333d62b48594414bbd5e5944cff5b952a456b9042d0c50f613a1ffb8a66c1
  7. 0xc293f50679ce126882c66f316b5f264a65c1665bdee0cf1f5648128e7565c405
  8. 0x4ae6b386d6523d591cd4dac22e5b121f2c3b8aff5de9c004b2c61c0c21720f1a
  9. 0x3535943122431e7c2826492f8dd76fcee69a4bf3bb60c7b87d7ed0ee4e0ea06a
  10. 0xc2fcd11ef5af6a59df481070e310192a7ac0d719b88489223003ed02d68e2c79
  11. 0x4ad1cba264cd30b4cce9fb7c52897b51c3d91649c3d00e37d10c56aed923e338
  12. 0x3f193b47c78cf4e7b9e4988cd716854b0e1011e5fcbca161f5a885f1aa02857d
  13. 0x06064dc1eb2363bec8c2a752e0a28aafc4bf0cb21d1b1b755821c1575bb77a96
  14. 0xc4fe2177880ea1b0e82b6fe4c270090fd0fbe5af3a42a8cbf6a6ba2fa35625f6
  15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
  16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
  17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
  18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON