← The evidence ledger
Evidence row 1268563
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-01-181
- Recorded
- Previous row
- #1043442
- Body SHA-256
- a2eab636f574968a494123797fec4980ad3bf78fe35d92d87b314b216a048466
- Leaf
- 0x04c66d2466d3b9e56389f1c2cc024662202e0fda30561c7e11811b76444bacf1
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-01-181"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-01-181",
"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": "Lesson attendance — Two-measure correlation + Secondary-measure weighted mean: Two-measure correlation + Secondary-measure weighted mean for supplied lesson attendance records (attendees, registered_students). 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": "attendees",
"rows": [
{
"attendees": 10,
"course_group": "group-a",
"date": "2026-10-01",
"registered_students": 1,
"row_id": "row-1"
},
{
"attendees": 20,
"course_group": "group-b",
"date": "2026-10-02",
"registered_students": 2,
"row_id": "row-2"
},
{
"attendees": 15,
"course_group": "group-a",
"date": "2026-10-03",
"registered_students": 3,
"row_id": "row-3"
},
{
"attendees": 30,
"course_group": "group-b",
"date": "2026-10-04",
"registered_students": 4,
"row_id": "row-4"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-01-181"
},
"sku": "assistant-ib26-education-01-181",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"field": {
"default": "attendees",
"enum": [
"attendees",
"registered_students"
],
"type": "string"
},
"rows": {
"default": [
{
"attendees": 10,
"course_group": "group-a",
"date": "2026-10-01",
"registered_students": 1,
"row_id": "row-1"
},
{
"attendees": 20,
"course_group": "group-b",
"date": "2026-10-02",
"registered_students": 2,
"row_id": "row-2"
},
{
"attendees": 15,
"course_group": "group-a",
"date": "2026-10-03",
"registered_students": 3,
"row_id": "row-3"
},
{
"attendees": 30,
"course_group": "group-b",
"date": "2026-10-04",
"registered_students": 4,
"row_id": "row-4"
}
],
"items": {
"additionalProperties": false,
"properties": {
"attendees": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"registered_students": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"row_id",
"course_group",
"date",
"attendees",
"registered_students"
],
"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": "2026-10-30T10:14:27.54Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-30T10:14:27.311Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-01-181",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Lesson attendance — Two-measure correlation + Secondary-measure weighted mean: Two-measure correlation + Secondary-measure weighted mean for supplied lesson attendance records (attendees, registered_students). 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":"a2eab636f574968a494123797fec4980ad3bf78fe35d92d87b314b216a048466","id":1268563,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385737589109,"prev":1043442,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-01-181","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (243099 rows).
- 0x04c65d9a36be2bca27a37d6ac27d8e1d38a48cdd10c3122b98cd1442b023b660
- 0x5813d59ab58bd5ddd92c823db8b04be8dbcbb823a846208bc3f226328a900cae
- 0xfd504cbde94638b3fa439d1306847c09f9f67615715d5267fa54154778994009
- 0x606691dd213cd27b13c203acf9158fce750144954affb29e2158937c62fe437a
- 0xe2e6ccf41f63d41c801eaead12850edaec840d8d780a2ca6527558d75e479920
- 0xaa7f7d3f7687caff32a1e66ce4708fd259d3c53b3701d53ab559c8492dc87ca4
- 0xde41871ec1efbfa0131022f2de0070f5e09c1a838d8f1f347feed5b7f52e0fd2
- 0xdf2ff35bef81e6b3e00062d7ac835dced663c8b61149a776d471e0ab037f1937
- 0x612deb50e233863e019003de63da8e55319f31310573f4f3fa51282c737e2305
- 0x04bbe7e109b78f471f62085dd7e030ff7a4f9a00f3b42cb512760963f3b609d4
- 0x0f8fc28d693d68f9b35611b6ac0fff77345b25013aae5f12a6e1950c53ba5950
- 0x4588a56123dd48dd025eb0cba6684201f8e98429c9b6b7d1cbe4920b3fc8e8b3
- 0x287d3fb38960cf3c4d3356b0e6240c982ffcd471f4e9b7f7d550363c3483d375
- 0xa0c9900ba7512d3a576c15bf6cc53f55a0645d9bf9b4e2e4c1760d00af98e761
- 0x2b7a05865245feaf40ea40b73e02d86357af2dcbac9c7b992f1420f5eaa15246
- 0xe2a9872e1b6a01c55a7a8cc5c05c61f3933255db5c26b9c79be4011d28685b52
- 0xb0c9ef42e725578748f3119c9dbebf2fc437266bda013df29f98ed3ebe621403
- 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147
- Day root
- 0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875
- Chained
- 0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822
- Published
- On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861