← The evidence ledger
Evidence row 90541
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-03-208
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 9e223e1eb83942ee61929fab2209413a95ee95c9eaec671361ef58a9aa5b536b
- Leaf
- 0x3dffe5e56bac1b2d62e34a8a1440c741aebc90482f6635e238a7765e438264aa
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-03-208"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-03-208",
"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": "Course completion — Record quality audit + String normalisation + Explicit missing-value fill: Record quality audit + String normalisation + Explicit missing-value fill for supplied course completion records (completions, enrolments). Up to 200 rows; 3 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 3 supplied-data reports for up to 200 rows.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"field": "completions",
"method": "median",
"rows": [
{
"completions": 10,
"course_group": "group-a",
"date": "2026-10-01",
"enrolments": 1,
"row_id": "row-1"
},
{
"completions": 20,
"course_group": "group-b",
"date": "2026-10-02",
"enrolments": 2,
"row_id": "row-2"
},
{
"completions": 15,
"course_group": "group-a",
"date": "2026-10-03",
"enrolments": 3,
"row_id": "row-3"
},
{
"completions": 30,
"course_group": "group-b",
"date": "2026-10-04",
"enrolments": 4,
"row_id": "row-4"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-03-208"
},
"sku": "assistant-ib26-education-03-208",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"field": {
"default": "completions",
"enum": [
"completions",
"enrolments"
],
"type": "string"
},
"method": {
"default": "median",
"enum": [
"zero",
"mean",
"median"
],
"type": "string"
},
"rows": {
"default": [
{
"completions": 10,
"course_group": "group-a",
"date": "2026-10-01",
"enrolments": 1,
"row_id": "row-1"
},
{
"completions": 20,
"course_group": "group-b",
"date": "2026-10-02",
"enrolments": 2,
"row_id": "row-2"
},
{
"completions": 15,
"course_group": "group-a",
"date": "2026-10-03",
"enrolments": 3,
"row_id": "row-3"
},
{
"completions": 30,
"course_group": "group-b",
"date": "2026-10-04",
"enrolments": 4,
"row_id": "row-4"
}
],
"items": {
"additionalProperties": false,
"properties": {
"completions": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"enrolments": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"row_id",
"course_group",
"date",
"completions",
"enrolments"
],
"type": "object"
},
"maxItems": 200,
"minItems": 1,
"type": "array"
}
},
"required": [
"rows",
"field",
"method"
],
"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": "2026-10-24T23:05:48.16Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-24T23:05:47.966Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-03-208",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Course completion — Record quality audit + String normalisation + Explicit missing-value fill: Record quality audit + String normalisation + Explicit missing-value fill for supplied course completion records (completions, enrolments). Up to 200 rows; 3 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 3 supplied-data reports for up to 200 rows."
}What the leaf hashes
{"body":"9e223e1eb83942ee61929fab2209413a95ee95c9eaec671361ef58a9aa5b536b","id":90541,"kind":"listing","method":"baseline/1","observed_us":1793025524745604,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-03-208","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).
- 0x3dffa356d7c4cec910d6371744329704ef8f4548e9e00b42aa37569fd0ac5f33
- 0x57db8dd5f4c670174efa279eeb7a8bb94cf7405359a8cfa33e42001ddd7170f4
- 0x22853cd0c0552d5c8a1f5647b856f03dda4276dded02b1c06990e54585e93faa
- 0x81753733ab49013df2e62c3deedf69961b0b756654b29aafc3fd40518efea963
- 0xc1e45cb34813f87d8d39b7a69c8cf95db4a075e2d490d5407860f8f9802b0933
- 0x98f44216bbfef79297d172101618749dace811ab1ea35a15d8bba6d1102870b0
- 0xeeab856ba1102df60dbb7bf8906514f0991509992b9f7f0cf555858e61621136
- 0xec67cf26667d74b64178007209112e61c88f6197a3034a10c9d767847f86ff34
- 0x6ee75bec467137d3dd8fbeb6a0a73db534b8fad2ed1c71dda0cb5e575c756de2
- 0x45253cd85fd280590cc755c7157b670bb65655451b61e792fbe381fa2fd7507d
- 0xc900cc76dc3702a3e60eaef3577f119464a6a90c3e2b646253f2ba09c089de97
- 0xd04df0f7f3be4d014b4cea8172ada286fbcf5bcb32ae1b281704fd75627b661b
- 0x215f432600b78f2e7c9629cd10ce6ce4b7f3351b0b71f3f2c7dcb8e650f6cd63
- 0x7f594f5609f388d64d3cda87b5631d393ee8300bb09bad71f150113a5886ee33
- 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
- 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae