← The evidence ledger
Evidence row 417463
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-07-121
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 27ef609c7dffd485f31f2f815fc5ccec7e65a9d59bedf2a52954bf73ee0ff149
- Leaf
- 0x47169ba175e7c7d6f973351be89ac46fcd694911157988d6939459c7b422dc52
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-07-121"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-07-121",
"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": "Research samples — Numeric row ordering + Secondary-measure weighted mean: Numeric row ordering + Secondary-measure weighted mean for supplied research samples records (sample_value, sample_weight). 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": "sample_value",
"rows": [
{
"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1",
"sample_value": 10,
"sample_weight": 1
},
{
"course_group": "group-b",
"date": "2026-10-02",
"row_id": "row-2",
"sample_value": 20,
"sample_weight": 2
},
{
"course_group": "group-a",
"date": "2026-10-03",
"row_id": "row-3",
"sample_value": 15,
"sample_weight": 3
},
{
"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4",
"sample_value": 30,
"sample_weight": 4
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-07-121"
},
"sku": "assistant-ib26-education-07-121",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"field": {
"default": "sample_value",
"enum": [
"sample_value",
"sample_weight"
],
"type": "string"
},
"rows": {
"default": [
{
"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1",
"sample_value": 10,
"sample_weight": 1
},
{
"course_group": "group-b",
"date": "2026-10-02",
"row_id": "row-2",
"sample_value": 20,
"sample_weight": 2
},
{
"course_group": "group-a",
"date": "2026-10-03",
"row_id": "row-3",
"sample_value": 15,
"sample_weight": 3
},
{
"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4",
"sample_value": 30,
"sample_weight": 4
}
],
"items": {
"additionalProperties": false,
"properties": {
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
},
"sample_value": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"sample_weight": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
}
},
"required": [
"row_id",
"course_group",
"date",
"sample_value",
"sample_weight"
],
"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": "2026-10-27T01:57:27.142Z",
"quality": {
"lastCalledAt": "2026-10-27T01:57:27.142Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-07-121",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Research samples — Numeric row ordering + Secondary-measure weighted mean: Numeric row ordering + Secondary-measure weighted mean for supplied research samples records (sample_value, sample_weight). 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":"27ef609c7dffd485f31f2f815fc5ccec7e65a9d59bedf2a52954bf73ee0ff149","id":417463,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793080848863181,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-07-121","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).
- 0x4716ad35fdd7532ee36178b71f317fe2b53389e6cf07905df20298cf5f00ff41
- 0xd1d4240e9201822a95cdd171b216c1c96bceb951d6b41b88027fd6ea0672b8a6
- 0x36815dae0d9f451d201d9bdbabbfb5acc720a616010cf5ec34a4931b71d0132d
- 0xa114cca5a15d44f42a855104b3dec0c529d5efbdf5dba1c2f83d1af3ae8a318a
- 0xdae83538d66d68da662c2a0a7721bddf4583c3fa44e863e0ee1f83809f02179d
- 0x716786118c1a125fd0068467d73f373f815b1daf8f38e99587f5412a58a3eef6
- 0x1cc9d35b11eef870246980c62e5daee3c8649885ee90696f0f543ccf1c743e4b
- 0xf202294191a95e73a55388db120f3352a01f9e28a5188482eef48e52af31a94d
- 0xbb95480555cc75ab19ac06e6443d19b29613d87c5a3a1415887af60aa89d0eca
- 0xe7dfb7a86983e740df392c84ac033dd18d0cec373e6d2f712a12e52185b672f4
- 0x6ed6652c0a61c43ddac9d506feb91d6c0a14dfe1cb98614f64edec2e4d6f5a91
- 0x92473b1fa79263164c4ce7d79f93b1dc8a85f63587b51a81433d1ad19b285a90
- 0x836e1796750a28d286ffaa8d273d250fe348c563336bf2d30cfaf1001d95f677
- 0x80ede9e5d428e39db26928b1d08254ff1241f1d7e091fd2e57130fbb4423162b
- 0x2c117b27721eea45f6590fbccb471d21a7b0b079a53f089ecb300c63bdb3aebf
- 0x3ed50f053eca72dfd3a9d45a11935240bfe691e57835c367ddebe2cbc49efe9d
- 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
- 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
- 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699
- Day root
- 0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795
- Chained
- 0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4
- Published
- On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4