← The evidence ledger
Evidence row 415024
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-11-156
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 5c41d561767b72b87849225abf73f35b579c1e0d06d2206f0e65928b21d4d1ec
- Leaf
- 0xd1e22d40f5593acdc6ad701281de6020d36b99547fc674e4708ffc47b71d1107
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-11-156"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-11-156",
"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 + Equal-width histogram: Adjacent row changes + Equal-width histogram 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": {
"bins": 5,
"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-11-156"
},
"sku": "assistant-ib26-education-11-156",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"bins": {
"default": 5,
"maximum": 30,
"minimum": 1,
"type": "integer"
},
"field": {
"default": "pre_score",
"enum": [
"pre_score",
"post_score"
],
"type": "string"
},
"rows": {
"default": [
{
"course_group": "group-a",
"date": "2026-10-01",
"post_score": 1,
"pre_score": 10,
"row_id": "row-1"
},
{
"course_group": "group-b",
"date": "2026-10-02",
"post_score": 2,
"pre_score": 20,
"row_id": "row-2"
},
{
"course_group": "group-a",
"date": "2026-10-03",
"post_score": 3,
"pre_score": 15,
"row_id": "row-3"
},
{
"course_group": "group-b",
"date": "2026-10-04",
"post_score": 4,
"pre_score": 30,
"row_id": "row-4"
}
],
"items": {
"additionalProperties": false,
"properties": {
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"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",
"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": "2026-10-27T04:58:17.21Z",
"quality": {
"lastCalledAt": "2026-10-27T04:58:17.21Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-11-156",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Training assessments — Adjacent row changes + Equal-width histogram: Adjacent row changes + Equal-width histogram 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":"5c41d561767b72b87849225abf73f35b579c1e0d06d2206f0e65928b21d4d1ec","id":415024,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793080778353822,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-11-156","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (273461 rows).
- 0xd1e2274c76671e58684d4e6c4b7fc6a16d4480aa97ff43db20f6bf4859c8ec08
- 0x102277e9a90e64fd29dd228d53c23514dd55289c93883e6c263f26a8c05a4055
- 0x58d0f9af864f7a9e7642ee4d9f7994475865fa87ca57083bd10eca882db840d4
- 0x1c48be4a85cdc00b92bb0451008f222574584e122b26807ca43519b8679d5977
- 0x98856992e355d276365ce53e2a22efeefdc7f6eb5616bc6da24756f8d7d5c119
- 0x525774825b77c03aa8294e959b02931a196d137596475645811739444a82813c
- 0x8a5090624de5ec676124c4b3599a629fc1de409b7a8cd1a7c7ae33144a7e6436
- 0xa68e0925ebd284f4116282dbc449a704e1559681a0dfa18eb93df61dd6c966b0
- 0x649d6704877b8faa02a60b2299d8c5d38a5b30939c2bf195ac13597faa26e4b8
- 0x6950799c5cde8ab6cd29ff662f5658cbc898f5308dd74e75195675e770eb09bf
- 0x17dc78b821725e8c90b54bb9b43579db49b460e76d0f7cc8a2a427dc1f9ea96e
- 0x171aeb7198e4c29bd794c75ee3b02f70c21f3caa4365d2b304c00b891f1bbc94
- 0xc66f83a1320fe7c1faf22674eeeb7fae22ecd2f0b102d9619a484291f2ce104a
- 0x8f676edfb4faaa290229d8f4f69ab721fc627424463d62f5146b3d1ca7f2f0c6
- 0x969cd44e5a4e8dc3110540398fbf689659eb51df735c1cda5d8f021ef9ff5683
- 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
- 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
- 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
- 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699
- Day root
- 0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795
- Chained
- 0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4
- Published
- On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4