← The evidence ledger
Evidence row 1513143
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
- #753883
- Body SHA-256
- a545f822b93c1ddc77a8caeed83fa12260156b2e85d89dca1673968e2723cb2a
- Leaf
- 0xdb498026ea1b45b74194c83bae13c3a02303749b48a6e2b816e679485c80083e
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": "2026-10-31T09:45:43.739Z",
"quality": {
"l30DaysTotalCalls": 4,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-31T09:45:43.548Z"
},
"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":"a545f822b93c1ddc77a8caeed83fa12260156b2e85d89dca1673968e2723cb2a","id":1513143,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793472898209736,"prev":753883,"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 (246033 rows).
- 0xdb4966299ef7a2134c3adbc8ae2790826115bab345969806e8060bfc950ac6a3
- 0x6c33cb9e52fb7a580d20ed06499d09a25bd5d426239cbd65e40b7d1c5db1a2c1
- 0x0dc1834d9d5d9b6d1428cc45c784a474704b5efff8e7b82e8e249122783a8765
- 0x747ccc346803e126c15baedc59139bb707e69331b8096e3cf1cfc942659dbee4
- 0x907969cb758c7054628ed6586cf026ef60d03a9e677039219191d5de8ed58e49
- 0xdeda0ecbcf6ee5d8c8c021f19619fb6df00436d9ccbfe6abc0150cd41636351b
- 0xe04bfbf1ddf86afc478cb66ed1bb06d68a5f04691f551256a2b4bf318caf1c17
- 0x010876571d7fe0cd77585812ca5c82f7e8b11c3449b6a9f6b3da700f345e234e
- 0xeb17bc01c9fe7013173b877650fe8558d4bc588b0fb2a5cfd612d9887d386b62
- 0xf1b46df0172aee5a68012c8677ae075fea1a18962c62d08642b8af0b4f29f1d5
- 0x1b6bc9ab50690a64d6b4ff6944cb0ef973e19813671a631f7221a979fc869916
- 0x0c06adadf19f919a9d5dc3e0de4a333ea84b77c73233c4564014b6745a7cb638
- 0x38ff5931db651d605476dd5d3ea00904e0ec5807919810f7803011a660e48abe
- 0x33d6b05cf42539c0ad2d9f9d3b99e4003beca3e59b45affa3d20cf6d400d4bbf
- 0xad3f03d7f9e1b66264ddfca29446faf13bc0fee7d8eec5f018d0d45302d3f8fd
- 0x24f03354dcb3a621317889ed99048bdf74b380516ca991bfb585c751d5cc7dfd
- 0xa1146af524f673843507e7427a575964580eef01bc0e0eae466a7920df017ab2
- 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57
- Day root
- 0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab
- Chained
- 0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980
- Published
- On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0