← The evidence ledger
Evidence row 218836
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-14-079
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 215356b52a39b5d0874c3ec30ed48540d4822996d4134382f6d2ee4ec9575a5b
- Leaf
- 0x851ee1cd5dfa0e3a22d25361cdc0ba0ebab7c6e749d310bbd0612fc84abedf87
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-14-079"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-14-079",
"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 — Numeric distribution + Equal-width histogram: Numeric distribution + 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-14-079"
},
"sku": "assistant-ib26-education-14-079",
"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": "2026-10-26T14:40:52.195Z",
"quality": {
"lastCalledAt": "2026-10-26T14:40:52.195Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-14-079",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Library circulation — Numeric distribution + Equal-width histogram: Numeric distribution + 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":"215356b52a39b5d0874c3ec30ed48540d4822996d4134382f6d2ee4ec9575a5b","id":218836,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793026654228833,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-14-079","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).
- 0x851f136bb68721b95714d5810c80fc4366fa6e1ca76492ccf27c2ee7d9c0cb8c
- 0xfab7b1a12d45e8886e50f4063cd421cc29bac46375bd26de2f2619ef3f07a90c
- 0xfb95fbb93dcc252cf901c1c81b10d21e436a34cba4903dddb666f3182aeda81c
- 0xab0020bf30462ac9097a637717626834c9d6bdba1f530f010d48ac2203923b09
- 0x7c2d8217a552b7cd2c3f24f77cc3405ddca842a65bdb02555de76a1ac8e0eeee
- 0xdf5079d80dca1fa1a156fa03078404cc9fcc5d935a180af8263af274239acc30
- 0xcda022d705d412c72f4be3aa454ee29839644269313c596d4b31cefcc13e74d7
- 0x32a3c1992d867a0f9299a0762c63c9dc796c23fd855c09f037288b83779774ef
- 0x58b7ee5b62b8ee6a0b2f7bc8a51622b7fa7a224885c3d1c4f768751b5f3bbec8
- 0x57cf22ad94c4fd01cd46cc494037c1e1c1e5762f276a703f5e957ef32ad4aa0a
- 0x147021357b2eb773d60db74f751316bfd367b06080320d378c0c402240e98d59
- 0x146f43471a3bde6d8a04e87b6afd3ee6860c6e38a009f86aee705ce722b67748
- 0x91c2ae93ec20c7fed5088112fe3941ca622dfb3f8f1022c4844726c361244bd4
- 0x0eff463856b0992d53ab7d8c0b97c71541413358bdd445710c1e4b6aeb4d8f78
- 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
- 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
- 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae