← The evidence ledger
Evidence row 1048076
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-11-158
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 2b1e9fc6618eb0713a00a56ddfc30a978dbd5528a44c6c8b2d632f1278b9680d
- Leaf
- 0x793262c135ff8b66411483b6415d589754dd263e77375f4c7a80e831fe655fde
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-11-158"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-11-158",
"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": "Training assessments — Adjacent row changes + Two-measure correlation: Adjacent row changes + Two-measure correlation for supplied training assessments records (pre_score, post_score). 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": "pre_score",
"rows": [
{
"course_group": "group-a",
"date": "2026-10-01",
"post_score": 1,
"pre_score": 10,
"row_id": "row-1"
},
{
"course_group": "group-b",
"date": "2026-10-02",
"post_score": 2,
"pre_score": 20,
"row_id": "row-2"
},
{
"course_group": "group-a",
"date": "2026-10-03",
"post_score": 3,
"pre_score": 15,
"row_id": "row-3"
},
{
"course_group": "group-b",
"date": "2026-10-04",
"post_score": 4,
"pre_score": 30,
"row_id": "row-4"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-11-158"
},
"sku": "assistant-ib26-education-11-158",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"field": {
"default": "pre_score",
"enum": [
"pre_score",
"post_score"
],
"type": "string"
},
"rows": {
"default": [
{
"course_group": "group-a",
"date": "2026-10-01",
"post_score": 1,
"pre_score": 10,
"row_id": "row-1"
},
{
"course_group": "group-b",
"date": "2026-10-02",
"post_score": 2,
"pre_score": 20,
"row_id": "row-2"
},
{
"course_group": "group-a",
"date": "2026-10-03",
"post_score": 3,
"pre_score": 15,
"row_id": "row-3"
},
{
"course_group": "group-b",
"date": "2026-10-04",
"post_score": 4,
"pre_score": 30,
"row_id": "row-4"
}
],
"items": {
"additionalProperties": false,
"properties": {
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"post_score": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"pre_score": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"row_id",
"course_group",
"date",
"pre_score",
"post_score"
],
"type": "object"
},
"maxItems": 200,
"minItems": 1,
"type": "array"
}
},
"required": [
"rows",
"field"
],
"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": "2026-10-29T12:39:06.238Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-29T12:39:05.982Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-11-158",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Training assessments — Adjacent row changes + Two-measure correlation: Adjacent row changes + Two-measure correlation for supplied training assessments records (pre_score, post_score). 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":"2b1e9fc6618eb0713a00a56ddfc30a978dbd5528a44c6c8b2d632f1278b9680d","id":1048076,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793298824106695,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-11-158","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (242798 rows).
- 0x7932db11cf9ff4c55c29764b7674e43ccfd22ed9af0b2e4f44e0fabd9baa9b57
- 0x77f0f2a4f57765eeb2439fd590cb67764026b6829e726754299257453504a8b4
- 0xbe9dc3650fa8345cd4413cf2059a3bacb01ad04d02b2e9272904f1188f0d3ae0
- 0xb49f95d7da176a874434d96059204b3aaff1f46c4959b430f4bb81a7e436b865
- 0x50c504b6dbc36a0dbaab40924582775e9db46f5508f24b297f4096d2b2dd0703
- 0x90cd47ae44e98aa0883b0f70b2f5b18817472aac2cad72131ee8c60055cad308
- 0x1a37528088139acb2af61f8d659d4d2db5470006fddd202b53172d1379e6eb92
- 0x4b14b7f58261722d2cf3b9547cd474aa5a6bcf1721a9147dcea367c402f6248d
- 0x2c7642b2ffbaf6295e7bcf255d469e48ba006f2cc2e5072f2c3c5ecca7c5943b
- 0xb6eaad48ae8d4be6c9b7ee40e454a1090bd7a6ca0a36e5dadaaf635c8c9a493d
- 0x10b6c92b7ea53ddf3f32dd9e2330d3a7d884105a9494f0d76d5de4d68b01c6ac
- 0xb33c8d8eb61b63178379d33a21cf2dfb0b6166bb37b9efcaea908653da604f29
- 0x371e975f59480e46efd44f3f221eb1d427557cbd3e6d1512735d19d762778536
- 0x8ba80727225153704e2051c6b4fa52b7de16d7f5ad7fa0e39cd779b45b20814d
- 0xcf94ad18fb19d78b9bda4e21e2e80e6fbf3504f3f83fee3273c11933743525c4
- 0xe2d603cd6f987214550319ad4fa39952b6098bc5c1b20893b6b80e8d82a79934
- 0x91f12a2db1e2c1be07cbe4de3981a37a33051a36d3c3eee5a260804add6d1d75
- 0xd56e61af23709ed9f460471e3c08400c0142ee83e1fd9057e46350d12edf9c07
- Day root
- 0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c
- Chained
- 0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6
- Published
- On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1