← The evidence ledger
Evidence row 555979
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-02-091
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 32341e37607c32685b11fd5983c9048b74b9711f0305f6cf9f70bff0654610da
- Leaf
- 0xf9f1a6545a6143b42194b3620d28687b8f2e10e48a702ad5f01b13288bdd8c87
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-02-091"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-02-091",
"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 — Grouped numeric summary + Adjacent row changes: Grouped numeric summary + Adjacent row changes 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": {
"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"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-02-091"
},
"sku": "assistant-ib26-education-02-091",
"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"
}
},
"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": "2026-10-27T19:35:00.918Z",
"quality": {
"lastCalledAt": "2026-10-27T19:35:00.918Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-02-091",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Assessment item observations — Grouped numeric summary + Adjacent row changes: Grouped numeric summary + Adjacent row changes 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":"32341e37607c32685b11fd5983c9048b74b9711f0305f6cf9f70bff0654610da","id":555979,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133803435736,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-02-091","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (273461 rows).
- 0xf9f1a8e8e0ad18eb490673354d328fffd5e4b2c7a2601c2245cae8518f358f92
- 0x6399aa9de19fd4f862d704a52af3193e3cc05632db04ff57ff55369d5c3e977a
- 0xd1e4953515154c381363b70d002bc22c8b4da8885f695446834115ace53b88dc
- 0x68687c222bd914d9666d480056f1f11d86729f90a61745587ab907c310f9d18e
- 0x0376c9b14f2d99560894c5e0ed9f2c97ce0a3dbf93de1d4520c0729ea61545a3
- 0x79de79c793335d97406aa79ddde022f91496e48771328b8a1de34f91294a0e7a
- 0x61c1b82a45911b7236d88e18a7fc3c9599ff2ec8d8a6162ab3ccbd4c5a0cbbd9
- 0x00baaad2db6bc987e4ca7f34dc517e8a438c90d84212b3ae7a8f79bc535c8a71
- 0x22296b59060147fa326ef487e78840aa7a3beca9a9fa418f2f5e7009c14947c5
- 0x3f753238d34d960f4019aebe8c972d7e10ee2d26eea6fcefef5aba9b96cf5fed
- 0x38d8d177d48b033acf33474f44cf1a36a3cfaa58563d48c7d92671c34bb12589
- 0x58215df828d47943a710362ab6e17ad0eb4a7c42a13dbec3ab2635d1abf3945f
- 0xf24b37f8ac293f5328e3e6b28cf868989fe99debf025c153c0d9a1698e846e25
- 0x94d3785ce9330e4580bccada5459380aa2aac76a0bf11354d1353b375afc17d2
- 0xb5b652bba4a5afca56c21031d89b1c06361563aaf54ccc8541c296ceeb2b66fa
- Day root
- 0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795
- Chained
- 0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4
- Published
- On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4