Evidence row 119729

Observed 26 Oct 2026, 14:40 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://saylorinnovations.com/api/evm/arbitrum/nonce/:address
Recorded: 26 Oct 2026, 14:40 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 1bc360ccc924f6b5e908021ee3dd3b21fbe40a45853ef9e1a53645c657836443
Leaf: 0x717fa967fe70b9943b89a11b4174fe6de4477888de425ffac0e07021e6bf270b

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/evm/arbitrum/nonce/:address"
    ]
  ],
  "name": "Saylor Innovations On-Chain Data",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:evm:nonce:arbitrum/nonce/",
          "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": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
          "memo": "saylor:evm:nonce:arbitrum/nonce/",
          "reference": "4cMe6U6vp7katE966GcU1kiaY4eis46gMNXcbRuBvvZh",
          "session": "eyJhcnRpY2xlSWQiOiJldm06bm9uY2U6YXJiaXRydW0vbm9uY2UvMHg4MmFmNDk0NDdkOGEwN2UzYmQ5NWJkMGQ1NmYzNTI0MTUyM2ZiYWIxIiwicmVmZXJlbmNlIjoiNGNNZTZVNnZwN2thdEU5NjZHY1Uxa2lhWTRlaXM0NmdNTlhjYlJ1QnZ2WmgiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MTgxMDA2ODM5OH0.qB3pc52Uw3kdKLIiFK4f1R2UiABJI0mOfwpo35IsY9M"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Arbitrum account nonce - confirmed and pending transaction count for any address",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "pathParams": {
              "address": "EVM wallet address (0x-prefixed, 40 hex characters)"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "address": "0x1111111111111111111111111111111111111111",
              "chain": "base",
              "nonce": 42,
              "pending_nonce": 43
            },
            "type": "json"
          }
        },
        "routeTemplate": "/api/evm/arbitrum/nonce/:address",
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "POST",
                    "PUT",
                    "PATCH",
                    "DELETE",
                    "HEAD"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "address": {
                      "type": "string"
                    },
                    "chain": {
                      "type": "string"
                    },
                    "nonce": {
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "pending_nonce": {
                      "type": [
                        "number",
                        "null"
                      ]
                    }
                  },
                  "required": [
                    "chain",
                    "address",
                    "nonce"
                  ],
                  "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": "2026-10-12T12:59:08.457Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-12T12:59:08.002Z"
    },
    "resource": "https://saylorinnovations.com/api/evm/arbitrum/nonce/:address",
    "serviceName": "Saylor Innovations On-Chain Data",
    "tags": [
      "evm",
      "arbitrum",
      "nonce",
      "onchain"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Arbitrum account nonce - confirmed and pending transaction count for any address"
}

What the leaf hashes

{"body":"1bc360ccc924f6b5e908021ee3dd3b21fbe40a45853ef9e1a53645c657836443","id":119729,"kind":"listing","method":"baseline/1","observed_us":1793025616420871,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/evm/arbitrum/nonce/:address","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).
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Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON