← The evidence ledger
Evidence row 91155
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-09-174
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 204db293ef94d95308a1d6553ddb126f835882ec45653aa8438e9f67d90878d9
- Leaf
- 0xe4bbcca3374e0009e78716e440a4bb8ae97d0e47aa9d330f4a0b916367813081
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-09-174"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-09-174",
"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": "Study recruitment — Equal-width histogram + Keyed dataset comparison: Equal-width histogram + Keyed dataset comparison for supplied study recruitment records (eligible_candidates, enrolled_candidates). 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": {
"bins": 5,
"field": "eligible_candidates",
"other": [
{
"course_group": "group-a",
"date": "2026-10-01",
"eligible_candidates": 10,
"enrolled_candidates": 1,
"row_id": "row-1"
},
{
"course_group": "group-b",
"date": "2026-10-02",
"eligible_candidates": 21,
"enrolled_candidates": 2,
"row_id": "row-2"
},
{
"course_group": "group-a",
"date": "2026-10-03",
"eligible_candidates": 17,
"enrolled_candidates": 3,
"row_id": "row-3"
},
{
"course_group": "group-b",
"date": "2026-10-04",
"eligible_candidates": 33,
"enrolled_candidates": 4,
"row_id": "row-4"
}
],
"rows": [
{
"course_group": "group-a",
"date": "2026-10-01",
"eligible_candidates": 10,
"enrolled_candidates": 1,
"row_id": "row-1"
},
{
"course_group": "group-b",
"date": "2026-10-02",
"eligible_candidates": 20,
"enrolled_candidates": 2,
"row_id": "row-2"
},
{
"course_group": "group-a",
"date": "2026-10-03",
"eligible_candidates": 15,
"enrolled_candidates": 3,
"row_id": "row-3"
},
{
"course_group": "group-b",
"date": "2026-10-04",
"eligible_candidates": 30,
"enrolled_candidates": 4,
"row_id": "row-4"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-09-174"
},
"sku": "assistant-ib26-education-09-174",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"bins": {
"default": 5,
"maximum": 30,
"minimum": 1,
"type": "integer"
},
"field": {
"default": "eligible_candidates",
"enum": [
"eligible_candidates",
"enrolled_candidates"
],
"type": "string"
},
"other": {
"default": [
{
"course_group": "group-a",
"date": "2026-10-01",
"eligible_candidates": 10,
"enrolled_candidates": 1,
"row_id": "row-1"
},
{
"course_group": "group-b",
"date": "2026-10-02",
"eligible_candidates": 21,
"enrolled_candidates": 2,
"row_id": "row-2"
},
{
"course_group": "group-a",
"date": "2026-10-03",
"eligible_candidates": 17,
"enrolled_candidates": 3,
"row_id": "row-3"
},
{
"course_group": "group-b",
"date": "2026-10-04",
"eligible_candidates": 33,
"enrolled_candidates": 4,
"row_id": "row-4"
}
],
"items": {
"additionalProperties": false,
"properties": {
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"eligible_candidates": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"enrolled_candidates": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"row_id",
"course_group",
"date",
"eligible_candidates",
"enrolled_candidates"
],
"type": "object"
},
"maxItems": 200,
"minItems": 0,
"type": "array"
},
"rows": {
"default": [
{
"course_group": "group-a",
"date": "2026-10-01",
"eligible_candidates": 10,
"enrolled_candidates": 1,
"row_id": "row-1"
},
{
"course_group": "group-b",
"date": "2026-10-02",
"eligible_candidates": 20,
"enrolled_candidates": 2,
"row_id": "row-2"
},
{
"course_group": "group-a",
"date": "2026-10-03",
"eligible_candidates": 15,
"enrolled_candidates": 3,
"row_id": "row-3"
},
{
"course_group": "group-b",
"date": "2026-10-04",
"eligible_candidates": 30,
"enrolled_candidates": 4,
"row_id": "row-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"
},
"eligible_candidates": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"enrolled_candidates": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"row_id",
"course_group",
"date",
"eligible_candidates",
"enrolled_candidates"
],
"type": "object"
},
"maxItems": 200,
"minItems": 1,
"type": "array"
}
},
"required": [
"rows",
"field",
"bins",
"other"
],
"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": "2026-10-25T01:47:00.898Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-25T01:47:00.707Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-09-174",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Study recruitment — Equal-width histogram + Keyed dataset comparison: Equal-width histogram + Keyed dataset comparison for supplied study recruitment records (eligible_candidates, enrolled_candidates). 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":"204db293ef94d95308a1d6553ddb126f835882ec45653aa8438e9f67d90878d9","id":91155,"kind":"listing","method":"baseline/1","observed_us":1793025526363491,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-09-174","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).
- 0xe4bb97e42f8431d3cc9c6fd1dbc78708a1b952b036284bd60d5de6abeea52ed7
- 0x5e6ad2b0a48e772f0482ec54947d0d727d5917652d82d7b8ff9480309d302c12
- 0xfe3a621464c392e81b1d6bffb05b307767261184a73641f0595eb46f2a3ae087
- 0xb9e05e781c5948550a0b2b87930b8ac730525bb1f3a052cf2ee71e847628c99e
- 0x3ba8078d90905657efc8125f6a86885654a7ffe6fb580490e5fdc1adc5cbfc79
- 0x6cedbec4374ca96becf94f5b1e22b90c0cdb86afd724e2217e796bae53de3c22
- 0xed7136319304cb1cf503c415be2b74a2444c9a326932c9c49ddd5d57a6f68afa
- 0x1058456db6e26487146924ad2b7ce065484fbaae1bfd327e211937d249c64754
- 0xf74f0470949b1ad4e69af8b6fc272a2e62927750b38e88b6d8d884b99b022b4e
- 0x86c56520a247c0dd1499f40b00669d0f980768d7f2c1c990aed4a43e7b31c44a
- 0x162e0da99198c9cdc9c43bf4626e85f4a7092fdb31ea15c7126e1f98b20eaa56
- 0x2fc38b57208d692aab1ee89b6e26917df292126314027c27360c5644a63fd0bc
- 0xc0924a0807e534382f518663123231c317124338831a2b310de2c17b09677086
- 0x9bc5fc98278b9f6dc18c66c6e162aefd5244be03170d41bc5161f58ad11beed7
- 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
- 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
- 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae