← The evidence ledger
Evidence row 759834
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-01-181
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- baecba2ed266392a141a0483a96211f85b5842325cdea11c6b4584ed27f792b6
- Leaf
- 0xd874582abc6ba2254cccc3fcbc58d757020c3ee533848b860dd9a0f7823e765f
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-01-181"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-01-181",
"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": "Lesson attendance — Two-measure correlation + Secondary-measure weighted mean: Two-measure correlation + Secondary-measure weighted mean for supplied lesson attendance records (attendees, registered_students). 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": "attendees",
"rows": [
{
"attendees": 10,
"course_group": "group-a",
"date": "2026-10-01",
"registered_students": 1,
"row_id": "row-1"
},
{
"attendees": 20,
"course_group": "group-b",
"date": "2026-10-02",
"registered_students": 2,
"row_id": "row-2"
},
{
"attendees": 15,
"course_group": "group-a",
"date": "2026-10-03",
"registered_students": 3,
"row_id": "row-3"
},
{
"attendees": 30,
"course_group": "group-b",
"date": "2026-10-04",
"registered_students": 4,
"row_id": "row-4"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-01-181"
},
"sku": "assistant-ib26-education-01-181",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"field": {
"default": "attendees",
"enum": [
"attendees",
"registered_students"
],
"type": "string"
},
"rows": {
"default": [
{
"attendees": 10,
"course_group": "group-a",
"date": "2026-10-01",
"registered_students": 1,
"row_id": "row-1"
},
{
"attendees": 20,
"course_group": "group-b",
"date": "2026-10-02",
"registered_students": 2,
"row_id": "row-2"
},
{
"attendees": 15,
"course_group": "group-a",
"date": "2026-10-03",
"registered_students": 3,
"row_id": "row-3"
},
{
"attendees": 30,
"course_group": "group-b",
"date": "2026-10-04",
"registered_students": 4,
"row_id": "row-4"
}
],
"items": {
"additionalProperties": false,
"properties": {
"attendees": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"registered_students": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"row_id",
"course_group",
"date",
"attendees",
"registered_students"
],
"type": "object"
},
"maxItems": 200,
"minItems": 1,
"type": "array"
}
},
"required": [
"rows",
"field"
],
"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": "2026-10-28T05:40:56.432Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-28T05:40:56.178Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-01-181",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Lesson attendance — Two-measure correlation + Secondary-measure weighted mean: Two-measure correlation + Secondary-measure weighted mean for supplied lesson attendance records (attendees, registered_students). 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":"baecba2ed266392a141a0483a96211f85b5842325cdea11c6b4584ed27f792b6","id":759834,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793179070507815,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-01-181","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (231336 rows).
- 0xd87411f261d32a30d22f4848b7cfffe3123d80d3df351766861f95e7c960ba3a
- 0x20ca46f037bf70707d35bd123747f837f9f637ce2be6c1cf276cf73eb679ea12
- 0x537700272f17fdf11dcf100963b9aa2d2b7b4f53ce272d07e13a3113f6391f10
- 0xca05c3c6cb079e85a179d442fcad79a22e03138901f13a7a279b426074c8b318
- 0x3e9ab2ccc68a086ec6f601778bbbe3c7c149d20fc48c07c53785f8b4f1012ba4
- 0x93435f216c38ef25092b7615a2c4e3fef35f543141b327742b1e8d196ba5f870
- 0x332602294f0d052d0c296e82631255fb57fb2b58be2d705d73a759f8627409eb
- 0xb0d12586af181ddcf6b06eb9bfbabbc2cdb7a51438fb33177e2e150c63e7f868
- 0x0f4226652dc389e85bf665d9aa6b4e613f40fd734fe5ffa8bd5b62af113af0fc
- 0x8e6eacff0f976563e787be09e1e3f6f19e9c3caed97a58d60c14a3dc14024d28
- 0x902424ae88ef8e095e423ed445103e5a15f76116005bd6790222a56f2321d12e
- 0xed9d37e957bb716a0d33a583ec62f34e409c2e192849ba62bdf9d0a1bc739dd1
- 0x0ec75adbdda764cd96393994f2e5fc25831c6c05bfcdf872e01ed5389eb9261b
- 0xf6b8c3d6b5a76cd63c41fa19fc59bcc627a6c650fd84130c55cbc9251f9ffdd9
- 0x6d86d2282dd724b1b80d031e4e3cf9ed095b746e38c9e58d933efb597daff87f
- 0x32beeeb960280bc48748681cb10297ede9403461fe9c8143fdf946548e552926
- 0xe08e8bd91858a8a10c46ecde9c29a6288b960987303173c5e882afb46ce91fa0
- 0xe6cfe00ae4e02bc12327e45b5f3334ea5850ba3bcc8e3101d30a8189856a95af
- Day root
- 0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e
- Chained
- 0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be
- Published
- On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae