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Evidence row 550840

Observed , by sync.x402_bazaar/1.

Kind
listing
About
source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-07-184
Recorded
Previous row
#455146
Body SHA-256
0f4835d6d262ece8285b3f83c0bf1089498f39ef8d35ef7348d6984c760d2dee
Leaf
0xbbbd70e4d21f94b57620bd459339551ea6b0e95a3840a8adf033068963150d73

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://market.datapackvibe.com/x402/assistant-ib26-education-07-184"
    ]
  ],
  "name": "market.datapackvibe.com/x402/assistant-ib26-education-07-184",
  "owner_address": "0x8bc2aecdd86097f74a1a5fa17764108d9a683c8c",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x8bc2AECdD86097F74a1a5fa17764108D9a683C8C",
        "scheme": "exact"
      }
    ],
    "description": "Research samples — Two-measure correlation + Explicit missing-value fill: Two-measure correlation + Explicit missing-value fill for supplied research samples records (sample_value, sample_weight). Up to 200 rows; 2 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 2 supplied-data reports for up to 200 rows.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "field": "sample_value",
              "method": "median",
              "rows": [
                {
                  "course_group": "group-a",
                  "date": "2026-10-01",
                  "row_id": "row-1",
                  "sample_value": 10,
                  "sample_weight": 1
                },
                {
                  "course_group": "group-b",
                  "date": "2026-10-02",
                  "row_id": "row-2",
                  "sample_value": 20,
                  "sample_weight": 2
                },
                {
                  "course_group": "group-a",
                  "date": "2026-10-03",
                  "row_id": "row-3",
                  "sample_value": 15,
                  "sample_weight": 3
                },
                {
                  "course_group": "group-b",
                  "date": "2026-10-04",
                  "row_id": "row-4",
                  "sample_value": 30,
                  "sample_weight": 4
                }
              ]
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "files": [],
              "order_id": "ord_example",
              "result": {
                "completed": true,
                "workflow": "ib26-education-07-184"
              },
              "sku": "assistant-ib26-education-07-184",
              "status": "delivered"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "field": {
                      "default": "sample_value",
                      "enum": [
                        "sample_value",
                        "sample_weight"
                      ],
                      "type": "string"
                    },
                    "method": {
                      "default": "median",
                      "enum": [
                        "zero",
                        "mean",
                        "median"
                      ],
                      "type": "string"
                    },
                    "rows": {
                      "default": [
                        {
                          "course_group": "group-a",
                          "date": "2026-10-01",
                          "row_id": "row-1",
                          "sample_value": 10,
                          "sample_weight": 1
                        },
                        {
                          "course_group": "group-b",
                          "date": "2026-10-02",
                          "row_id": "row-2",
                          "sample_value": 20,
                          "sample_weight": 2
                        },
                        {
                          "course_group": "group-a",
                          "date": "2026-10-03",
                          "row_id": "row-3",
                          "sample_value": 15,
                          "sample_weight": 3
                        },
                        {
                          "course_group": "group-b",
                          "date": "2026-10-04",
                          "row_id": "row-4",
                          "sample_value": 30,
                          "sample_weight": 4
                        }
                      ],
                      "items": {
                        "additionalProperties": false,
                        "properties": {
                          "course_group": {
                            "default": "",
                            "maxLength": 80,
                            "type": "string"
                          },
                          "date": {
                            "default": "",
                            "maxLength": 10,
                            "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
                            "type": "string"
                          },
                          "row_id": {
                            "default": "",
                            "maxLength": 80,
                            "minLength": 1,
                            "type": "string"
                          },
                          "sample_value": {
                            "maximum": 1000000000000,
                            "minimum": -1000000000000,
                            "type": [
                              "number",
                              "null"
                            ]
                          },
                          "sample_weight": {
                            "maximum": 1000000000000,
                            "minimum": -1000000000000,
                            "type": [
                              "number",
                              "null"
                            ]
                          }
                        },
                        "required": [
                          "row_id",
                          "course_group",
                          "date",
                          "sample_value",
                          "sample_weight"
                        ],
                        "type": "object"
                      },
                      "maxItems": 200,
                      "minItems": 1,
                      "type": "array"
                    }
                  },
                  "required": [
                    "rows",
                    "field",
                    "method"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T09:39:01.099Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-27T09:39:00.89Z"
    },
    "resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-07-184",
    "tags": [
      "ai",
      "learning",
      "workflow"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Research samples — Two-measure correlation + Explicit missing-value fill: Two-measure correlation + Explicit missing-value fill for supplied research samples records (sample_value, sample_weight). Up to 200 rows; 2 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 2 supplied-data reports for up to 200 rows."
}

What the leaf hashes

{"body":"0f4835d6d262ece8285b3f83c0bf1089498f39ef8d35ef7348d6984c760d2dee","id":550840,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133425664105,"prev":455146,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-07-184","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (273461 rows).

  1. 0xbbbdccfea507ceb6185bc194b3b9d994708a62f8d705b2c57e5da3c3fba2885e
  2. 0xb746fad673f40ada66853c1206926b7ee666ae173aab8fd0be2cc2c456711db0
  3. 0x418c4cced8e8365bbd05087be6c228dd9bda1923f3d8ded61768ad908bbfceae
  4. 0x67ec88d4d2e54a16262753602b73efb9a8da7472ec798899f6edd47372834539
  5. 0x1ed0e2e17bc0933765f0a5a5b2ca97e8d3fee65dda6962ca85b5af006816e23a
  6. 0x4846fb9d41aa309749aad3d032673e58fd8669253cfe1e8aef195d793205d43d
  7. 0x0eb34f2c8e717bb9e53521961265cfac64ddc5b390b055eb3eed29b8c753fb92
  8. 0x1556d2f6f79c04f0b5fa50ada2033b0228834e508aeb24e18f190e061c747e80
  9. 0x4cfeadeeecd2a5e2849acf9efc5dc9f91138577e90ff85d67263f9faaec08f5d
  10. 0xafd6b70c1465b8a2427d47ea40632cde7a6907f32f64f887c4cb460e460f7fdd
  11. 0xaf79bfeaa8b78c501b6b72d2abd133b4a8958ea976a4458f01d1f54590268c1e
  12. 0x5942c2574ffacd0c039c3cd1147d5ab0b6d34e0278203065ce21c437ae2a392d
  13. 0xa4f69e2cf941a3f318d70734b59401dd27010a6bdffb5c32a28304db650a6f0b
  14. 0xa453d1738637a5c663802d07ce095aa340c80d53a4288ae277a72e265868ce4e
  15. 0x73341bb09dd901ca47f26173883431496e3d98d6b0fb5b89f36218126d46c5d4
  16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
  17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
  18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
  19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699
Day root
0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795
Chained
0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4
Published
On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4

How to check it · This row as JSON