← The evidence ledger
Evidence row 91821
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-16-121
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 3c8c9a366a724419f8d79efde9c78ddb95d30d856e8f804331999c7be0cd215b
- Leaf
- 0xd639d8767aaf4fe480960cafc44e95ceed9acd37dab5d3085419b0ef6b3d3373
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-16-121"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-16-121",
"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": "Tutoring sessions — Numeric row ordering + Secondary-measure weighted mean: Numeric row ordering + Secondary-measure weighted mean for supplied tutoring sessions records (session_minutes, session_count). 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": "session_minutes",
"rows": [
{
"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1",
"session_count": 1,
"session_minutes": 10
},
{
"course_group": "group-b",
"date": "2026-10-02",
"row_id": "row-2",
"session_count": 2,
"session_minutes": 20
},
{
"course_group": "group-a",
"date": "2026-10-03",
"row_id": "row-3",
"session_count": 3,
"session_minutes": 15
},
{
"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4",
"session_count": 4,
"session_minutes": 30
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-16-121"
},
"sku": "assistant-ib26-education-16-121",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"field": {
"default": "session_minutes",
"enum": [
"session_minutes",
"session_count"
],
"type": "string"
},
"rows": {
"default": [
{
"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1",
"session_count": 1,
"session_minutes": 10
},
{
"course_group": "group-b",
"date": "2026-10-02",
"row_id": "row-2",
"session_count": 2,
"session_minutes": 20
},
{
"course_group": "group-a",
"date": "2026-10-03",
"row_id": "row-3",
"session_count": 3,
"session_minutes": 15
},
{
"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4",
"session_count": 4,
"session_minutes": 30
}
],
"items": {
"additionalProperties": false,
"properties": {
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
},
"session_count": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"session_minutes": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
}
},
"required": [
"row_id",
"course_group",
"date",
"session_minutes",
"session_count"
],
"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": "2026-10-22T09:43:01.722Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-22T09:42:57.526Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-16-121",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Tutoring sessions — Numeric row ordering + Secondary-measure weighted mean: Numeric row ordering + Secondary-measure weighted mean for supplied tutoring sessions records (session_minutes, session_count). 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":"3c8c9a366a724419f8d79efde9c78ddb95d30d856e8f804331999c7be0cd215b","id":91821,"kind":"listing","method":"baseline/1","observed_us":1793025527978724,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-16-121","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).
- 0xd639da08360ba699b6678e760e23c52aa833d49a82eb72c94d57c4508d3c285a
- 0xf688ebd78582bbff68f230780bc5233616ff14db3df05ff3e3c6102840003445
- 0x6417f556f5c6f8a9309793cdcb97494b9decbf188d4a8ebdb9319421de91fc7f
- 0xe185c2aaa3f78d756d67ba7d13761440a3c36eceb4778f8f475fe8e473d5bbca
- 0xa32b2223e390d7e8c96f60d314896cd502e7ff4e92178d1ed61e74fe319fe595
- 0xd9424256adee8026cc38e803f26b0373e6a886472ba140df5dca8f9644ff0cfb
- 0x4da8ae7950d3468c307b2d1b239f4265cbbf1950d8a76cd25437be7107364aae
- 0x17324359bf2d3bac8e81ff01cea68bb4c4e927c359ea7ba27b7aa263e03f8220
- 0xf18069e17c709278da28b5dbf32fb020e6f8de9fcde781a4053c6d11a6187ed2
- 0xd674ac2fe1839ab692c41b1af133cd0e1cb5d650355a3245c77aea56bcfe188f
- 0x993ee5fd278bf116928331fbf1ccabe7ebb40d4f5e12235f09eee4dcb29676aa
- 0x39d84ffb833c94bfff15760ea7da987f5303e407884de386d5a33b2328c7d785
- 0x3199db04c2c73c3483386a86bf503eafde5af103465608156e2e5f42e72a6fbe
- 0x6b927d53caa5125cdba9255612d524976c691f8672796c3f0885ba2c5b3af1ad
- 0x6dc40f983a3840a0ad927a9ca17f4ff1e3b649a6c735e2a09b140db7c2caf13b
- 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae