← The evidence ledger
Evidence row 90563
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-04-028
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 01e39c36aafc4629442b5d0d847dcd972e3233f87afde6f415d0ccb95c4365d9
- Leaf
- 0xf7eea42100235d1c24bb7d2f9e30a7616833133a1453d943d8ce5987a7ae20b5
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-04-028"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-04-028",
"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": "Reading activity — String normalisation + Trailing mean series: String normalisation + Trailing mean series for supplied reading activity records (pages_read, reading_minutes). 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": {
"field": "pages_read",
"rows": [
{
"course_group": "group-a",
"date": "2026-10-01",
"pages_read": 10,
"reading_minutes": 1,
"row_id": "row-1"
},
{
"course_group": "group-b",
"date": "2026-10-02",
"pages_read": 20,
"reading_minutes": 2,
"row_id": "row-2"
},
{
"course_group": "group-a",
"date": "2026-10-03",
"pages_read": 15,
"reading_minutes": 3,
"row_id": "row-3"
},
{
"course_group": "group-b",
"date": "2026-10-04",
"pages_read": 30,
"reading_minutes": 4,
"row_id": "row-4"
}
],
"window": 2
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-04-028"
},
"sku": "assistant-ib26-education-04-028",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"field": {
"default": "pages_read",
"enum": [
"pages_read",
"reading_minutes"
],
"type": "string"
},
"rows": {
"default": [
{
"course_group": "group-a",
"date": "2026-10-01",
"pages_read": 10,
"reading_minutes": 1,
"row_id": "row-1"
},
{
"course_group": "group-b",
"date": "2026-10-02",
"pages_read": 20,
"reading_minutes": 2,
"row_id": "row-2"
},
{
"course_group": "group-a",
"date": "2026-10-03",
"pages_read": 15,
"reading_minutes": 3,
"row_id": "row-3"
},
{
"course_group": "group-b",
"date": "2026-10-04",
"pages_read": 30,
"reading_minutes": 4,
"row_id": "row-4"
}
],
"items": {
"additionalProperties": false,
"properties": {
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"pages_read": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"reading_minutes": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"row_id",
"course_group",
"date",
"pages_read",
"reading_minutes"
],
"type": "object"
},
"maxItems": 200,
"minItems": 1,
"type": "array"
},
"window": {
"default": 2,
"maximum": 200,
"minimum": 2,
"type": "integer"
}
},
"required": [
"rows",
"field",
"window"
],
"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": "2026-10-23T14:44:47.065Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-23T14:44:42.466Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-04-028",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Reading activity — String normalisation + Trailing mean series: String normalisation + Trailing mean series for supplied reading activity records (pages_read, reading_minutes). 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":"01e39c36aafc4629442b5d0d847dcd972e3233f87afde6f415d0ccb95c4365d9","id":90563,"kind":"listing","method":"baseline/1","observed_us":1793025524779380,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-04-028","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).
- 0xf7ef0573111d216791fab0a17620cf4454be2e886c56a5ceb6b128857389d77c
- 0xe2d088281a3903b3442c5fc19006f0d7ec65294b616abbcc671fdca343947499
- 0xae95c2eea36dd7ea82bb8995197e150892650f0bd959822bb514050c0599a0c2
- 0x2b639ea6167f207f8ce0127210033745cf2cb481c069e9017c80bc50167c7dc8
- 0xa5d3c74133510d75732ae42dbf9d36393604ebd1721384f3627d669c58c1ac68
- 0x7880e323ecb383dfdf7fdc484f4902395ab46230ef150c336078561feb472226
- 0x2a75549819cb715f5adffc90c25794eb0d4488d6ddad90b2a7dd069f2d4d982a
- 0xe3fffb73f407f55e96a151d19eef431947596762924128695f39b11c524db0e9
- 0x2346b54e8961351591237aa6905edcee2e14f9d9d4a3f3ccc65c57e060aad838
- 0x0eea714eaa5097f3236c62c5eab0dbd64a4b080a83c9a924990a89ae274e7c4e
- 0x0836eb686ada9beddba0f76357ec59493359d2a7c51aa5c4a31d3cfe9873ea74
- 0xf7eba200f6f1012d700fcc53fc6d57dcafd1019c920b1030d42fa21d4af95d94
- 0x694eb701ea36a0e3dcde192253ab85a618738bdc1e3a6e582e6f8bf9647f7a6a
- 0x44945ea9ad8b24e723ad5a8fd6d014024a49531783f74ff9229c2ab6930e84c8
- 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
- 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
- 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae