Evidence row 119580

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/cron/next"
    ]
  ],
  "name": "Saylor Innovations Dev Tools",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:devkit:cron-next",
          "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:devkit:cron-next",
          "reference": "51vtnb3uxrUqxYrSBd7F8GonmwcFtgU5hpaZapkreXw9",
          "session": "eyJhcnRpY2xlSWQiOiJkZXZraXQ6Y3Jvbi1uZXh0IiwicmVmZXJlbmNlIjoiNTF2dG5iM3V4clVxeFlyU0JkN0Y4R29ubXdjRnRnVTVocGFaYXBrcmVYdzkiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjE2NTI0NjQ4N30.najUKFFx2EqIV72p_E3czYIBKqteSGMBcfBjVshf5mk"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Cron expression explained in plain English with the next run times in any time zone - validates a 5-field cron and handles DST",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "count": "3",
              "expr": "30 9 * * mon-fri",
              "from": "2026-10-12T12:00:00Z",
              "tz": "America/New_York"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "count": 3,
              "description": "At 09:30 on Monday, Tuesday, Wednesday, Thursday, Friday",
              "expression": "30 9 * * mon-fri",
              "from": "2026-10-12T12:00:00.000Z",
              "next_runs": [
                {
                  "local": "2026-10-12T09:30",
                  "utc": "2026-10-12T13:30:00.000Z",
                  "weekday": "mon"
                },
                {
                  "local": "2026-10-13T09:30",
                  "utc": "2026-10-13T13:30:00.000Z",
                  "weekday": "tue"
                },
                {
                  "local": "2026-10-14T09:30",
                  "utc": "2026-10-14T13:30:00.000Z",
                  "weekday": "wed"
                }
              ],
              "semantics": "standard 5-field cron; when both day-of-month and day-of-week are restricted a day matches if EITHER does (POSIX); local times skipped by a DST gap do not run",
              "timezone": "America/New_York"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "POST",
                    "PUT",
                    "PATCH",
                    "DELETE",
                    "HEAD"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "count": {
                      "default": "5",
                      "description": "How many upcoming run times to return, 1 to 20 (default 5)",
                      "pattern": "^[0-9]{1,2}$",
                      "type": "string"
                    },
                    "expr": {
                      "description": "Standard 5-field cron (minute hour day-of-month month day-of-week) or @hourly, @daily, @weekly, @monthly, @yearly; names like mon-fri and jan are accepted",
                      "examples": [
                        "30 9 * * mon-fri",
                        "*/15 * * * *",
                        "@daily"
                      ],
                      "type": "string"
                    },
                    "from": {
                      "description": "ISO 8601 instant to start from (default: now)",
                      "examples": [
                        "2026-10-12T12:00:00Z"
                      ],
                      "type": "string"
                    },
                    "tz": {
                      "default": "UTC",
                      "description": "IANA time zone the schedule is evaluated in (default UTC)",
                      "examples": [
                        "America/New_York",
                        "Europe/London",
                        "Asia/Tokyo"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "expr"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "checked_at": {
                      "description": "Time the check was run (UTC)",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "count": {
                      "description": "Number of run times returned",
                      "type": "number"
                    },
                    "description": {
                      "description": "Plain-English reading of the schedule",
                      "type": "string"
                    },
                    "expression": {
                      "description": "The normalised cron expression",
                      "type": "string"
                    },
                    "from": {
                      "description": "Start of the range",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "next_runs": {
                      "description": "Upcoming run times in order",
                      "items": {
                        "properties": {
                          "local": {
                            "description": "Run time in the requested time zone",
                            "type": "string"
                          },
                          "utc": {
                            "description": "Run time in UTC (ISO 8601)",
                            "type": "string"
                          },
                          "weekday": {
                            "description": "Weekday of the local run time",
                            "type": "string"
                          }
                        },
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "semantics": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "timezone": {
                      "description": "Time zone the schedule was evaluated in",
                      "type": "string"
                    }
                  },
                  "required": [
                    "expression",
                    "description",
                    "next_runs"
                  ],
                  "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": "2026-10-16T15:38:46.563Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-16T15:38:46.136Z"
    },
    "resource": "https://saylorinnovations.com/api/cron/next",
    "serviceName": "Saylor Innovations Dev Tools",
    "tags": [
      "cron",
      "cron expression",
      "schedule",
      "next run",
      "timezone"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Cron expression explained in plain English with the next run times in any time zone - validates a 5-field cron and handles DST"
}

What the leaf hashes

{"body":"abfca4067c923507c9141d0614a84a505ca2934b1f3c290d04ec1bb96d878662","id":119580,"kind":"listing","method":"baseline/1","observed_us":1793025615989279,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/cron/next","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).

1. 0x30769250d81f4820a33eac34d2222a59f296df042ffd44f30b14f7d9cca107af
2. 0x0a1d32ce11b619c2de5b0c44a799927577f3aaa466a2aa766d0671eaac1fea85
3. 0xbddad52a909166b2183bc63e453580959cd21367a571858c28958d95fd88c49b
4. 0xb7ab0d66b7033f1e3adb668e1743f4e376162f19511c87e84cb09c26e2190ffd
5. 0x9afa63bad39ff2307491b10e62626a718283458a68e6eff212b7c5b26164c77e
6. 0xf390920874e50289841ec6020b93de2a905dd9532162e74a40941545b0c9f202
7. 0xa766937fc4acfc2cae57704db6315b36b8026667206f6b466641dc6d150b265a
8. 0x1166de3cc8bfc240064a6da9eceb2c9566c0286bb709385f7ffd36fc3930327c
9. 0x0873cae3f9ee0333b9da41ab852b9038c536f7405fd7f4e58870bb84e7a9fa75
10. 0x0886695ce8b00ff9cb3b286883a23d258a3fbdfe296f9e24a8b5f848bccd41cb
11. 0x66b4d790d6ae725a0af009d5a6edacaec5a6147d597bc8410a97be11d56a00d1
12. 0xd85c7204d76d26255c94ef4caa12c05addd08238caa5cdc3888ea60b74e6b940
13. 0x36a44931b230976c04691d90bf3a25ed4111d74c78b672850d8025a911ca88dd
14. 0x683955a5b2250ad50568d022a6580d8739b6aff1356779d72a773b088e7c289c
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae