← The evidence ledger
Evidence row 2640498
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-02-199
- Recorded
- Previous row
- #2213098
- Body SHA-256
- 49809e1a1152a6c229c4d94237d65a52c8ddc463bec6778131c25bc583f28d30
- Leaf
- 0xf396a04525823d34f0248b659031204a1abbd3004e78b27d2dc8ed3d11da41fa
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-02-199"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-02-199",
"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": "Assessment item observations — Record quality audit + String normalisation + Trailing mean series: Record quality audit + String normalisation + Trailing mean series for supplied assessment item observations records (correct_responses, attempts). Up to 200 rows; 3 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 3 supplied-data reports for up to 200 rows.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"field": "correct_responses",
"rows": [
{
"attempts": 1,
"correct_responses": 10,
"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1"
},
{
"attempts": 2,
"correct_responses": 20,
"course_group": "group-b",
"date": "2026-10-02",
"row_id": "row-2"
},
{
"attempts": 3,
"correct_responses": 15,
"course_group": "group-a",
"date": "2026-10-03",
"row_id": "row-3"
},
{
"attempts": 4,
"correct_responses": 30,
"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4"
}
],
"window": 2
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-02-199"
},
"sku": "assistant-ib26-education-02-199",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"field": {
"default": "correct_responses",
"enum": [
"correct_responses",
"attempts"
],
"type": "string"
},
"rows": {
"default": [
{
"attempts": 1,
"correct_responses": 10,
"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1"
},
{
"attempts": 2,
"correct_responses": 20,
"course_group": "group-b",
"date": "2026-10-02",
"row_id": "row-2"
},
{
"attempts": 3,
"correct_responses": 15,
"course_group": "group-a",
"date": "2026-10-03",
"row_id": "row-3"
},
{
"attempts": 4,
"correct_responses": 30,
"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4"
}
],
"items": {
"additionalProperties": false,
"properties": {
"attempts": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"correct_responses": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"row_id",
"course_group",
"date",
"correct_responses",
"attempts"
],
"type": "object"
},
"maxItems": 200,
"minItems": 1,
"type": "array"
},
"window": {
"default": 2,
"maximum": 200,
"minimum": 2,
"type": "integer"
}
},
"required": [
"rows",
"field",
"window"
],
"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": "2026-11-03T09:41:41.929Z",
"quality": {
"l30DaysTotalCalls": 8,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-03T09:41:41.56Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-02-199",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Assessment item observations — Record quality audit + String normalisation + Trailing mean series: Record quality audit + String normalisation + Trailing mean series for supplied assessment item observations records (correct_responses, attempts). Up to 200 rows; 3 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 3 supplied-data reports for up to 200 rows."
}What the leaf hashes
{"body":"49809e1a1152a6c229c4d94237d65a52c8ddc463bec6778131c25bc583f28d30","id":2640498,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793734659044393,"prev":2213098,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-02-199","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (425475 rows).
- 0xf396b13e5e5e0a04eea4fbcf941572067b2c8fcd304415db255d4f75cbd91c04
- 0x0bf81257d01ad439042f3fcbc45809eae1cf94053cfbc9b0b42b5d27e2438ff4
- 0x45edc111d7a655f758f8ad7f7a9627133da0b901176075f3a0db2f64bc16f307
- 0xc246e8127f44980155d3eec934589a2b8ab5ab02b550dce654adee306be3a759
- 0x08309d36faeec0389ede659b159b77faeb3272d99b4f9cb47b1fe8d9f441b789
- 0x4a0fd4a401a759c9a6805ad594425b07c0df5eab6fb49b8684e3565da8d1f00e
- 0xc6dbcdac725ad452ac7bf70817ce32a545b5087c6a94aadd4f1ebe2be3e7937f
- 0xa2d6e3ec8c2f90fe33dd0ad2070b0b7d41baebca905bbf5367bae78754de91d4
- 0x592a47336c4adf3d987763dddaed8b6321f1ebba437a8782c3cbc4024b79ced8
- 0x6a1ed1655b43773458abff9a8a2f785ece6ab31f7bf6d685a48b15a9ca67fee3
- 0x447c0c370405a7cd5bae61ede97226fee9e3daec26fe4914c576f16c9a3cada8
- 0x0d5cfc88bbad0c4b40a561ea1060fb7093bbc663a0c9b1ac75a449bd2a0fe549
- 0x0ea954b95dc4e26bb21744a0d424db9da57e2da18185ea0406675355cc4a2429
- 0xc456b1c820d564945f129896256bb07afc74e79940a2da0ea6e9440718d856c7
- 0xa29933ab8020ad948edbcf3e65194e73a6b113a0063231c1105b56c2d59ab97d
- 0xd60b16e6a71fbffc93a233ee89f916e50c0206a56f52c852b85e5a246b6b417c
- 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a
- Day root
- 0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
- Chained
- 0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
- Published
- On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7