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Evidence row 120251

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/kb/python-dateutil-parse-ambiguity-dayfirst-relativedelta-month-end
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
912eea11ab760584d403222bd40b7e9cf7f18433d8f7ae9c24ccd04b7e1ba40a
Leaf
0xa3f938676e9c1a405ec5fd7d69539f19b01b67facd9863f4a7150da5cbf9ef6a

What was observed

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  "name": "Saylor Innovations Guide Library",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
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          "facilitatorOnly": true,
          "memo": "saylor:python-dateutil-parse-amb",
          "name": "USD Coin",
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          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:python-dateutil-parse-amb",
          "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",
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      },
      {
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        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
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        "scheme": "exact"
      },
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        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
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      {
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        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:python-dateutil-parse-amb",
          "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": "95767",
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    ],
    "description": "dateutil.parser gotchas - ambiguous 10/11/12 and dayfirst, naive vs tz-aware, default fills, ParserError, relativedelta Jan 31 plus month",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "body": "Executed with python-dateutil: 10/11/12 as 2012-10-11 or 2012-11-10, Z suffix giving tzutc, 3pm parsing, default date filling, ParserError for text and for February 30, and relativedelta adding a month to January 31.",
              "c": "Self-Hosting & Infra",
              "id": "python-dateutil-parse-ambiguity-dayfirst-relativedelta-month-end",
              "t": "dateutil.parser Gotchas: Ambiguous Dates, dayfirst, Missing Fields, Invalid Dates and relativedelta Month Ends"
            },
            "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": {
                    "body": {
                      "description": "Main body text",
                      "type": "string"
                    },
                    "c": {
                      "description": "Category of the guide",
                      "type": "string"
                    },
                    "id": {
                      "description": "Identifier of the record",
                      "type": "string"
                    },
                    "license": {
                      "description": "License identifier",
                      "type": "string"
                    },
                    "price": {
                      "description": "Price",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "t": {
                      "description": "Title of the guide",
                      "type": "string"
                    }
                  },
                  "required": [
                    "id",
                    "t",
                    "c",
                    "body"
                  ],
                  "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/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-20T12:54:36.044Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-20T12:54:35.86Z"
    },
    "resource": "https://saylorinnovations.com/api/kb/python-dateutil-parse-ambiguity-dayfirst-relativedelta-month-end",
    "serviceName": "Saylor Innovations Guide Library",
    "tags": [
      "python",
      "dateutil",
      "dates",
      "parsing",
      "timezone"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "dateutil.parser gotchas - ambiguous 10/11/12 and dayfirst, naive vs tz-aware, default fills, ParserError, relativedelta Jan 31 plus month"
}

What the leaf hashes

{"body":"912eea11ab760584d403222bd40b7e9cf7f18433d8f7ae9c24ccd04b7e1ba40a","id":120251,"kind":"listing","method":"baseline/1","observed_us":1793025617545006,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/kb/python-dateutil-parse-ambiguity-dayfirst-relativedelta-month-end","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. 0xa3f933102a78ac8bccfb7d0344a304811a62bc1f514e5e29a09f5f362f3cea93
  2. 0x9ff05d3b0e7c9f1ba2c64412ad5c57bc7dd4543cef6140e8c1fe748003dead22
  3. 0xdea93fc0248b20fec15b874b049f2a0029bca1c6c044715428e33dab542147a9
  4. 0x85a1b31721665240196772e19528715ec6ce67deac880054b3b0529eda8719ff
  5. 0x168cdab381bb2356b310fd974ef30d9f1294d28b1004a6dd4b1b7ad7573e503d
  6. 0xa108baa901567f55a76fc8074a3e4a352ea15a0b5cdfdabaead39a5316c7af35
  7. 0x90dfd2a653b064311a40cec82f09d77330c867a47113baa0d8c64d5769c449e4
  8. 0xd68bee0ee8f154a93b6d52b3ee6042a27cdb9950b4de7b95e08495c51b7bed8c
  9. 0x78fde7b709e6e55ad9a4e9212d8138abddd3ae38821487602e87956fa71abd08
  10. 0x98005a23cbe74a9cdea08497a91d96ddecf46b8942b406963266e78529eea12d
  11. 0xf02ec0f13d875e636ca9d24097cc2a185cdb09429c8c4ade598b8089f42bb140
  12. 0x19537c574979327583a539261287714af2eee831125de819abab0f155acd3a75
  13. 0xc34c13c58ba9c342ea1b833ac1882a4aea22777c4fd1092b2f83d3bac6b9f845
  14. 0x428106f4ae4ec142f17aebf6fa50935242f8d3f1c211cf95d6351d03d11da2b7
  15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
  16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
  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