Evidence row 120884

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

Kind: listing
About: source_record x402_bazaar:https://saylorinnovations.com/api/x402/ping
Recorded: 26 Oct 2026, 14:40 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 0da5680bd73e15cb7a339afddeaa348b4f97bbcbb317425f3520c12ffed2debb
Leaf: 0x1dba8c43c4c569c9b260568f039b2722a50f321f2fc7c3a284e96fd8314630b6

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/x402/ping"
    ]
  ],
  "name": "Saylor Innovations x402 Utilitie",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:x402util:ping",
          "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:x402util:ping",
          "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:x402util:ping",
          "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": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
          "memo": "saylor:x402util:ping",
          "reference": "32oVeaoC6zfTVy3MYGJToP7MMMb4B2KB1vqJbgXNEfwg",
          "session": "eyJhcnRpY2xlSWQiOiJ4NDAydXRpbDpwaW5nIiwicmVmZXJlbmNlIjoiMzJvVmVhb0M2emZUVnkzTVlHSlRvUDdNTU1iNEIyS0IxdnFKYmdYTkVmd2ciLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQwODEzMzU5OH0.AIK5nHPcL80g93uo2N4Ndjd3dRaZ5e2VZp41FrqiYR4"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
          "memo": "saylor:x402util:ping",
          "reference": "EjLnauMLwmggCm4yQkBkJj3qKY1jTDtWzqTnfVqAY76v",
          "session": "eyJhcnRpY2xlSWQiOiJ4NDAydXRpbDpwaW5nIiwicmVmZXJlbmNlIjoiRWpMbmF1TUx3bWdnQ200eVFrQmtKajNxS1kxalREdFd6cVRuZlZxQVk3NnYiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQwODEzMzU5OH0.5L9hnlBMM6TNgdDJ863yPXljUJTyueR7p7kXp8RI1sI"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "92627",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:x402util:ping",
          "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": "95492",
          "reference": "59YksyEM3fgJwNy7Fessy3SnzA9kXtySgXood3DyLpVy",
          "session": "eyJhcnRpY2xlSWQiOiJ4NDAydXRpbDpwaW5nIiwicmVmZXJlbmNlIjoiNTlZa3N5RU0zZmdKd055N0Zlc3N5M1NuekE5a1h0eVNnWG9vZDNEeUxwVnkiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTI2MjcsImV4cCI6MTc5MjQwODEzMzU5OH0.tjTAfm4o3wUvMikZrjAXCKtn7LD3QZjVk8tSilwFowc",
          "solUsdPrice": 104.72
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "x402 ping health check - a paid round trip that returns server time and a request id",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "ok": true,
              "pong": true,
              "request_id": "3f2a9c1e5b7d4a60",
              "server_time": "2026-10-11T12:00:00.000Z",
              "service": "saylorinnovations.com",
              "unix_ms": 1791720000000
            },
            "type": "json"
          }
        },
        "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": {
                    "ok": {
                      "description": "True when the check succeeded",
                      "type": "boolean"
                    },
                    "pong": {
                      "type": "boolean"
                    },
                    "request_id": {
                      "description": "Request id identifier",
                      "type": "string"
                    },
                    "server_time": {
                      "description": "Server time (UTC unless a time zone is given)",
                      "type": "string"
                    },
                    "service": {
                      "description": "Service name",
                      "type": "string"
                    },
                    "unix_ms": {
                      "description": "Unix, in milliseconds",
                      "type": "number"
                    }
                  },
                  "required": [
                    "ok",
                    "pong",
                    "server_time"
                  ],
                  "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": "2026-10-19T11:06:53.644Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-19T11:06:53.429Z"
    },
    "resource": "https://saylorinnovations.com/api/x402/ping",
    "serviceName": "Saylor Innovations x402 Utilitie",
    "tags": [
      "x402",
      "test",
      "utility",
      "ping"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "x402 ping health check - a paid round trip that returns server time and a request id"
}

What the leaf hashes

{"body":"0da5680bd73e15cb7a339afddeaa348b4f97bbcbb317425f3520c12ffed2debb","id":120884,"kind":"listing","method":"baseline/1","observed_us":1793025618966682,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/x402/ping","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