← The evidence ledger
Evidence row 90419
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-02-168
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 7a5c868f0db931ac7fb2ec24ade927de1ee8a363de46dba8fc8928c3b50a7e2f
- Leaf
- 0xb5b3e0a5b8ce24337fa345c8221f4dc4eef8d6cbf4487033a9f9615a2321c766
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-02-168"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-02-168",
"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 — Base-100 series + Keyed dataset comparison: Base-100 series + Keyed dataset comparison for supplied assessment item observations records (correct_responses, attempts). 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": {
"base_index": 0,
"field": "correct_responses",
"other": [
{
"attempts": 1,
"correct_responses": 10,
"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1"
},
{
"attempts": 2,
"correct_responses": 21,
"course_group": "group-b",
"date": "2026-10-02",
"row_id": "row-2"
},
{
"attempts": 3,
"correct_responses": 17,
"course_group": "group-a",
"date": "2026-10-03",
"row_id": "row-3"
},
{
"attempts": 4,
"correct_responses": 33,
"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4"
}
],
"rows": [
{
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"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"
},
{
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"correct_responses": 30,
"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-02-168"
},
"sku": "assistant-ib26-education-02-168",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
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},
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"enum": [
"correct_responses",
"attempts"
],
"type": "string"
},
"other": {
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{
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"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1"
},
{
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"course_group": "group-b",
"date": "2026-10-02",
"row_id": "row-2"
},
{
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"course_group": "group-a",
"date": "2026-10-03",
"row_id": "row-3"
},
{
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"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4"
}
],
"items": {
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"properties": {
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"type": [
"number",
"null"
]
},
"correct_responses": {
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"minimum": -1000000000000,
"type": [
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"null"
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},
"course_group": {
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},
"date": {
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"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
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}
},
"required": [
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"course_group",
"date",
"correct_responses",
"attempts"
],
"type": "object"
},
"maxItems": 200,
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"type": "array"
},
"rows": {
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{
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"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1"
},
{
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"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": {
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"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"correct_responses": {
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"minimum": -1000000000000,
"type": [
"number",
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]
},
"course_group": {
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"type": "string"
},
"date": {
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"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"row_id": {
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"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"row_id",
"course_group",
"date",
"correct_responses",
"attempts"
],
"type": "object"
},
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}
},
"required": [
"rows",
"field",
"base_index",
"other"
],
"type": "object"
},
"bodyType": {
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"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": "2026-10-26T05:44:32.019Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-26T00:14:27.421Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-02-168",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Assessment item observations — Base-100 series + Keyed dataset comparison: Base-100 series + Keyed dataset comparison for supplied assessment item observations records (correct_responses, attempts). 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":"7a5c868f0db931ac7fb2ec24ade927de1ee8a363de46dba8fc8928c3b50a7e2f","id":90419,"kind":"listing","method":"baseline/1","observed_us":1793025524576590,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-02-168","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).
- 0xb5b2a2405361ebfca099f380612c81d5ed87950a966df03c688eeb532b98a2a6
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- 0xe47385cb6f7557bda26eaeaadc06b9a73b85c080855b76644d93b0a96723c95c
- 0x8fe488545fa860b322546eb823c4502b6156ec058f8967711d1b89b0bde64254
- 0xcd38ad2c268e261e1645f54682d20428ce8db788240efc286045956f2393f74a
- 0xa96a1259630d6a381be9b64470d5c008be86aa599249e6467e88fecc99829bc7
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- 0x0f199646652e20987f8f0e4e8bd21993538b0737cd758d5cbc6ebcaaa02763a3
- 0x7a0f1751de1946feff7d8c8afc737dcc4d35f110809c15aa0fdb8363a9e31b2b
- 0x0d86419ca1dd0b62fd8b22ea2e8c74d441312cec3116a467bea429b43e026565
- 0x083427e39db4dd470662401f6db5db8fadf084fc4274cf8621b368416952b78b
- 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
- 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
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- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae