← The evidence ledger
Evidence row 299104
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-08-013
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- f57327d955ae7d51c4a73b4606b1880c85458bc18f3c51663d1c47bd188f0f62
- Leaf
- 0x210f5dd534cdb5e0053b0169368487dd11934bc031e5090a8e1a13cfd82a7116
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-08-013"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-08-013",
"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": "Bibliography inventories — Record quality audit + Equal-width histogram: Record quality audit + Equal-width histogram for supplied bibliography inventories records (reference_count, verified_references). 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": "reference_count",
"rows": [
{
"course_group": "group-a",
"date": "2026-10-01",
"reference_count": 10,
"row_id": "row-1",
"verified_references": 1
},
{
"course_group": "group-b",
"date": "2026-10-02",
"reference_count": 20,
"row_id": "row-2",
"verified_references": 2
},
{
"course_group": "group-a",
"date": "2026-10-03",
"reference_count": 15,
"row_id": "row-3",
"verified_references": 3
},
{
"course_group": "group-b",
"date": "2026-10-04",
"reference_count": 30,
"row_id": "row-4",
"verified_references": 4
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-08-013"
},
"sku": "assistant-ib26-education-08-013",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"bins": {
"default": 5,
"maximum": 30,
"minimum": 1,
"type": "integer"
},
"field": {
"default": "reference_count",
"enum": [
"reference_count",
"verified_references"
],
"type": "string"
},
"rows": {
"default": [
{
"course_group": "group-a",
"date": "2026-10-01",
"reference_count": 10,
"row_id": "row-1",
"verified_references": 1
},
{
"course_group": "group-b",
"date": "2026-10-02",
"reference_count": 20,
"row_id": "row-2",
"verified_references": 2
},
{
"course_group": "group-a",
"date": "2026-10-03",
"reference_count": 15,
"row_id": "row-3",
"verified_references": 3
},
{
"course_group": "group-b",
"date": "2026-10-04",
"reference_count": 30,
"row_id": "row-4",
"verified_references": 4
}
],
"items": {
"additionalProperties": false,
"properties": {
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"reference_count": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
},
"verified_references": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
}
},
"required": [
"row_id",
"course_group",
"date",
"reference_count",
"verified_references"
],
"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": "2026-10-26T19:16:42.27Z",
"quality": {
"lastCalledAt": "2026-10-26T19:16:42.27Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-08-013",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Bibliography inventories — Record quality audit + Equal-width histogram: Record quality audit + Equal-width histogram for supplied bibliography inventories records (reference_count, verified_references). 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":"f57327d955ae7d51c4a73b4606b1880c85458bc18f3c51663d1c47bd188f0f62","id":299104,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793052602576460,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-08-013","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).
- 0x210fbe7cff20a286489599f371301cb6d1a2e3eef805205ee76e334f00ffd5a9
- 0x1ce3e532b92d75c3a8c0324adecbe067ee8371a970c0e67b15226d71d947f3f3
- 0x1516123bbd3f6723083c1b693c6eb8fcc4a1cd9f0f89f8ac27fb20eeefd14e3f
- 0x77c3611d517ef3472d040870d3e55fc543e5bdab32a8595d867b2787e1300c06
- 0x174334d5f6da5652af2f266939c49cf49eb0225f59dc63d1cf0e6e14f275e9cd
- 0xfa9e09c8e31a65ecfec6c5add30d585cd2efc0861a84f317221e2d2b1f103876
- 0xd67eadcb91527b5418f0eeaa4977cd2d3b5d0d0198fc1224906c61eba75fad6e
- 0x29e9eef9aea7129cdfe24183b1cce4c803503f07ab183501de9ff25bdbb86d4a
- 0x8ef6530824615af36b1bd7b35686e238ae98f9a507ea890d03e6d6b3df18d33c
- 0x6487a391c112421d6d0b92e0372d1e4a5fd6afe541f565a9dde5c636d1ae4643
- 0x71f472bb5c514dca2395c7842916e5cae63a9c622d8bc8f84b07a986c5ba91a1
- 0xfde157310fc8513767b162378ca9ceefb2937c374b7381a8887f7ccba8ab5a80
- 0x9d75d4d3ab6219edefa04be60b32fdd56be7a7672f370a5115f02f7b098ecd27
- 0x9dfd312f3d4937f7cb144cee3987e8516f222932b4ea286605236d73cfa1ed16
- 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
- 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae