← The evidence ledger
Evidence row 91985
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-18-053
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- a1d58b20bc3c0cf4af1736fd3cbe8f2d3c3b0cfa4f45cbfc6134cc2744f861e3
- Leaf
- 0x131dc158f62be4810b5dc683011851c8a5a3e059a48a7ca487acec614a374141
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-18-053"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-18-053",
"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": "Question bank coverage — Exact row deduplication + Keyed dataset comparison: Exact row deduplication + Keyed dataset comparison for supplied question bank coverage records (item_count, objective_count). 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": {
"other": [
{
"course_group": "group-a",
"date": "2026-10-01",
"item_count": 10,
"objective_count": 1,
"row_id": "row-1"
},
{
"course_group": "group-b",
"date": "2026-10-02",
"item_count": 21,
"objective_count": 2,
"row_id": "row-2"
},
{
"course_group": "group-a",
"date": "2026-10-03",
"item_count": 17,
"objective_count": 3,
"row_id": "row-3"
},
{
"course_group": "group-b",
"date": "2026-10-04",
"item_count": 33,
"objective_count": 4,
"row_id": "row-4"
}
],
"rows": [
{
"course_group": "group-a",
"date": "2026-10-01",
"item_count": 10,
"objective_count": 1,
"row_id": "row-1"
},
{
"course_group": "group-b",
"date": "2026-10-02",
"item_count": 20,
"objective_count": 2,
"row_id": "row-2"
},
{
"course_group": "group-a",
"date": "2026-10-03",
"item_count": 15,
"objective_count": 3,
"row_id": "row-3"
},
{
"course_group": "group-b",
"date": "2026-10-04",
"item_count": 30,
"objective_count": 4,
"row_id": "row-4"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-18-053"
},
"sku": "assistant-ib26-education-18-053",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"other": {
"default": [
{
"course_group": "group-a",
"date": "2026-10-01",
"item_count": 10,
"objective_count": 1,
"row_id": "row-1"
},
{
"course_group": "group-b",
"date": "2026-10-02",
"item_count": 21,
"objective_count": 2,
"row_id": "row-2"
},
{
"course_group": "group-a",
"date": "2026-10-03",
"item_count": 17,
"objective_count": 3,
"row_id": "row-3"
},
{
"course_group": "group-b",
"date": "2026-10-04",
"item_count": 33,
"objective_count": 4,
"row_id": "row-4"
}
],
"items": {
"additionalProperties": false,
"properties": {
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"item_count": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"objective_count": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"row_id",
"course_group",
"date",
"item_count",
"objective_count"
],
"type": "object"
},
"maxItems": 200,
"minItems": 0,
"type": "array"
},
"rows": {
"default": [
{
"course_group": "group-a",
"date": "2026-10-01",
"item_count": 10,
"objective_count": 1,
"row_id": "row-1"
},
{
"course_group": "group-b",
"date": "2026-10-02",
"item_count": 20,
"objective_count": 2,
"row_id": "row-2"
},
{
"course_group": "group-a",
"date": "2026-10-03",
"item_count": 15,
"objective_count": 3,
"row_id": "row-3"
},
{
"course_group": "group-b",
"date": "2026-10-04",
"item_count": 30,
"objective_count": 4,
"row_id": "row-4"
}
],
"items": {
"additionalProperties": false,
"properties": {
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"item_count": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"objective_count": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"row_id",
"course_group",
"date",
"item_count",
"objective_count"
],
"type": "object"
},
"maxItems": 200,
"minItems": 1,
"type": "array"
}
},
"required": [
"rows",
"other"
],
"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": "2026-10-25T04:10:56.367Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-25T04:10:56.183Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-18-053",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Question bank coverage — Exact row deduplication + Keyed dataset comparison: Exact row deduplication + Keyed dataset comparison for supplied question bank coverage records (item_count, objective_count). 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":"a1d58b20bc3c0cf4af1736fd3cbe8f2d3c3b0cfa4f45cbfc6134cc2744f861e3","id":91985,"kind":"listing","method":"baseline/1","observed_us":1793025528224689,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-18-053","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).
- 0x131dce60fc3bf2d329fed39e8db8838de440c024c742ad01e760838646beb66f
- 0x6511c6e027ff4539b1156cc2fdaa4477a79045d86e6197815d2ce30f8d402075
- 0x1fb0125ad5f1455aedc3a0a9bad9634b336e1a6a70e6377d1338cc260a94a1b4
- 0x42add3861b27d67111fa701d3f854d7b531e32d40f0abca5075819e5841b1189
- 0x18ec081e8af1e1540401ff9ad64755f01ec415d90537b3d6fc36c2954b8d0aef
- 0xa146210e39c0f97c1769e3cba126ac214e5e4feddbbf66eaec7994e4172454e3
- 0xd90fe85596f430a2a7180841e1c21c624ed668ae50f8c5aa4e27473bac9d0f92
- 0xcd0edfb7d294a59b89e05ad155582f7bfe6ac8fa3205d0dd9ba65353423ac7ea
- 0x0b3c954c3d2b2159a2f05003f65c595ae6a417c5cf7233134f8877273a080450
- 0x82c27b8a0cc799b1b8e2ae127f363936ba1a6e1a5d43001849ff8f1e205dc950
- 0x9d19085bdd0cb9322cb235f88ed9fb666f1b60fe7afec1170ec05f633673830a
- 0x7e390200ea1ea25db5884cf05fa50ad599f0759b573f081e361cc22f7206133c
- 0xff1c28bdf595a3d1333e9915edc68e9c5fded7bd5923fa85870979af34cbc3b3
- 0xb49e8c2564256e5322e375cb619d9ac70fd17c1d1eba9c991bba4cb6428f45cc
- 0x60582ab4b41e72eb70eb0bce07fbf0fb4d2b62a8bad5be50f5d16d511adc746c
- 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae