← The evidence ledger
Evidence row 553228
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-14-013
- Recorded
- Previous row
- #457427
- Body SHA-256
- fd79f1131f6cbb8d1bf64523fd0166081e4e70ce122ef827c5bc33fc4141d948
- Leaf
- 0x8ee50e742b8962dbadd5b35aa418d4f12418e58f0ee058d9f895c79f359b7de3
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-14-013"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-14-013",
"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": "Library circulation — Record quality audit + Equal-width histogram: Record quality audit + Equal-width histogram for supplied library circulation records (loan_count, available_copies). 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": "loan_count",
"rows": [
{
"available_copies": 1,
"course_group": "group-a",
"date": "2026-10-01",
"loan_count": 10,
"row_id": "row-1"
},
{
"available_copies": 2,
"course_group": "group-b",
"date": "2026-10-02",
"loan_count": 20,
"row_id": "row-2"
},
{
"available_copies": 3,
"course_group": "group-a",
"date": "2026-10-03",
"loan_count": 15,
"row_id": "row-3"
},
{
"available_copies": 4,
"course_group": "group-b",
"date": "2026-10-04",
"loan_count": 30,
"row_id": "row-4"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-14-013"
},
"sku": "assistant-ib26-education-14-013",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"bins": {
"default": 5,
"maximum": 30,
"minimum": 1,
"type": "integer"
},
"field": {
"default": "loan_count",
"enum": [
"loan_count",
"available_copies"
],
"type": "string"
},
"rows": {
"default": [
{
"available_copies": 1,
"course_group": "group-a",
"date": "2026-10-01",
"loan_count": 10,
"row_id": "row-1"
},
{
"available_copies": 2,
"course_group": "group-b",
"date": "2026-10-02",
"loan_count": 20,
"row_id": "row-2"
},
{
"available_copies": 3,
"course_group": "group-a",
"date": "2026-10-03",
"loan_count": 15,
"row_id": "row-3"
},
{
"available_copies": 4,
"course_group": "group-b",
"date": "2026-10-04",
"loan_count": 30,
"row_id": "row-4"
}
],
"items": {
"additionalProperties": false,
"properties": {
"available_copies": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"loan_count": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"row_id",
"course_group",
"date",
"loan_count",
"available_copies"
],
"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": "2026-10-27T09:05:18.543Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-27T09:05:18.33Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-14-013",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Library circulation — Record quality audit + Equal-width histogram: Record quality audit + Equal-width histogram for supplied library circulation records (loan_count, available_copies). 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":"fd79f1131f6cbb8d1bf64523fd0166081e4e70ce122ef827c5bc33fc4141d948","id":553228,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133589816958,"prev":457427,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-14-013","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).
- 0x8ee4a908ecef780b2cdb20437949ee65dede71d4aa4290d8ca9a75a6bbc91251
- 0x070feaebdb28b388f3ad5f609ea3ae6aa11f81e47c8045eb36cd20314c1eaebb
- 0x7a80ed5b9617239cb6276be21653002bc56b8dcbd0bf8e22e9131b83f6a3465a
- 0xa0ba30eaf6058501c3ba824f844b3e04582b50d376784e65de991829f16c6a27
- 0x288af83753029ae09729328e839f405447e72d7462b1696b5f0457ad78a905df
- 0x16633837bea82fc7a991cbdb6b01f437abe633e5436a2755d8a72bfbc341ada8
- 0x41562e0b9b482295c271d954020e335ea43f57dd2ddd0072125cff506c192a57
- 0x44758d84c05a9854f52ec256643aedf21de523296e2d67d9b13a1bd4cdac52a1
- 0x1ab401e7363f687eb461332f60d64256807cca0409ea49355d3d646cd63ae0ce
- 0xab0849bf1d37da0d1f88ac3ed4eed1e8f99d98cc43f4e48e236aef579a97190e
- 0xbff43d30538b90ef025129e8a238dc8959481edca06b37ecee4c2be1f617127d
- 0x3d13b6f855471289691a683ee58cac14977b2531dabc14f9c666e928df0908e6
- 0x5c9cbca5bb1d6be4d84e301b4e4c1a280536eb16ee98ed4add9057142c132dde
- 0x06e3b43165f5b3c31d850bc32f20b2e25b844564c4e042c141b9748c26a5a600
- 0xb4f7223140c8a36cb87a63d77cf617086d9968dc4658f03e102571ebe06e9ed6
- 0xfecf3d4646dd4984a13dd715499e842c3fde63692336d97394c2bfd8e877ca5d
- 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
- 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
- 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699
- Day root
- 0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795
- Chained
- 0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4
- Published
- On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4