← The evidence ledger
Evidence row 211034
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-20-106
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 82861cde83e35da98d8678cd642176bbd66b6fcf32b530ff64e7c01f43351517
- Leaf
- 0xd0daa968a6a7a4b3b2b1431d1887912ac2f40f3778459fb3f350567cf9fd75c1
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-20-106"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-20-106",
"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": "Research grant spending — Category frequencies + Equal-width histogram: Category frequencies + Equal-width histogram for supplied research grant spending records (budget_amount, spend_amount). 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": {
"bins": 5,
"field": "budget_amount",
"rows": [
{
"budget_amount": 10,
"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1",
"spend_amount": 1
},
{
"budget_amount": 20,
"course_group": "group-b",
"date": "2026-10-02",
"row_id": "row-2",
"spend_amount": 2
},
{
"budget_amount": 15,
"course_group": "group-a",
"date": "2026-10-03",
"row_id": "row-3",
"spend_amount": 3
},
{
"budget_amount": 30,
"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4",
"spend_amount": 4
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-20-106"
},
"sku": "assistant-ib26-education-20-106",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"bins": {
"default": 5,
"maximum": 30,
"minimum": 1,
"type": "integer"
},
"field": {
"default": "budget_amount",
"enum": [
"budget_amount",
"spend_amount"
],
"type": "string"
},
"rows": {
"default": [
{
"budget_amount": 10,
"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1",
"spend_amount": 1
},
{
"budget_amount": 20,
"course_group": "group-b",
"date": "2026-10-02",
"row_id": "row-2",
"spend_amount": 2
},
{
"budget_amount": 15,
"course_group": "group-a",
"date": "2026-10-03",
"row_id": "row-3",
"spend_amount": 3
},
{
"budget_amount": 30,
"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4",
"spend_amount": 4
}
],
"items": {
"additionalProperties": false,
"properties": {
"budget_amount": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
},
"spend_amount": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
}
},
"required": [
"row_id",
"course_group",
"date",
"budget_amount",
"spend_amount"
],
"type": "object"
},
"maxItems": 200,
"minItems": 1,
"type": "array"
}
},
"required": [
"rows",
"field",
"bins"
],
"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": "2026-10-26T10:14:33.727Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-26T10:14:33.545Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-20-106",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Research grant spending — Category frequencies + Equal-width histogram: Category frequencies + Equal-width histogram for supplied research grant spending records (budget_amount, spend_amount). 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":"82861cde83e35da98d8678cd642176bbd66b6fcf32b530ff64e7c01f43351517","id":211034,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793026459519744,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-20-106","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).
- 0xd0dad6be6b1e2098ebdc4af0ed78559d349831b75ff0f4fe2f566f1598079388
- 0x52fd7bada187bdde4c4730bb75d4267fe0e665cec337f9f66ad4f45f83bcc8ba
- 0x207c1108feaf5d1108da80d7aa09dd103e1f168bfa8a45e940dd28019286cfc2
- 0x7fb7dbf115314c493d40758376d266310816734560c02e2ff5b571a05cfa116f
- 0xbc46f813a28703b75e1d38d3ed2e4494a10820dc3a9890c1e83495e2da5d6ce6
- 0x656067906a463c2af39abd3b9629e3f2ff6752525ce66d58ae9f35fd7fde1705
- 0x991acb495e2124a496c36fecd11d032666c324d44d7f1b9fb0e69099e71779f5
- 0x8c07613dfd8b3193c4d7b936a874cb0cd9b5662865d9e87e795a38c3ae52ca03
- 0x139ecf4c5f2cb4700abfd1855d00c8b563d745d67c3f27c3e21380f2fbb4cf8e
- 0x0f53b93a25a2f186fd221bd4e152ef492b0cc841c0b870210a5fd6038ba3602e
- 0xcbb746ffeda31ff1f1b0d9f74705fed23a3c2abac5d325d65e8e867a7b5e6307
- 0xa4ec009cd8db00b48fa2e4df84088950b4d34c37254de09f5e3789441c0c5e73
- 0x889eefefef2d4457fe6114f397df813a5cbb85011a6f40309b54ddcd4aba3bd1
- 0xefabf1105e09cf52c12c58e60cbb5048b9ac3f02631d1816a926e14bdd86fbdf
- 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
- 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae