← The evidence ledger
Evidence row 436276
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-22-205
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 25e162e1ac21c5ee3d1d63d31081307e6d990d92fcf2c7538dd2d6dd9e88bae3
- Leaf
- 0xd2b580114766236b2effe6da117f22dc7bff63188c7eb8a0631fd860982f50e6
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-22-205"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-22-205",
"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": "Data collection completeness — Record quality audit + String normalisation + Secondary-measure weighted mean: Record quality audit + String normalisation + Secondary-measure weighted mean for supplied data collection completeness records (observed_values, expected_values). Up to 200 rows; 3 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 3 supplied-data reports for up to 200 ",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"field": "observed_values",
"rows": [
{
"course_group": "group-a",
"date": "2026-10-01",
"expected_values": 1,
"observed_values": 10,
"row_id": "row-1"
},
{
"course_group": "group-b",
"date": "2026-10-02",
"expected_values": 2,
"observed_values": 20,
"row_id": "row-2"
},
{
"course_group": "group-a",
"date": "2026-10-03",
"expected_values": 3,
"observed_values": 15,
"row_id": "row-3"
},
{
"course_group": "group-b",
"date": "2026-10-04",
"expected_values": 4,
"observed_values": 30,
"row_id": "row-4"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-22-205"
},
"sku": "assistant-ib26-education-22-205",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"field": {
"default": "observed_values",
"enum": [
"observed_values",
"expected_values"
],
"type": "string"
},
"rows": {
"default": [
{
"course_group": "group-a",
"date": "2026-10-01",
"expected_values": 1,
"observed_values": 10,
"row_id": "row-1"
},
{
"course_group": "group-b",
"date": "2026-10-02",
"expected_values": 2,
"observed_values": 20,
"row_id": "row-2"
},
{
"course_group": "group-a",
"date": "2026-10-03",
"expected_values": 3,
"observed_values": 15,
"row_id": "row-3"
},
{
"course_group": "group-b",
"date": "2026-10-04",
"expected_values": 4,
"observed_values": 30,
"row_id": "row-4"
}
],
"items": {
"additionalProperties": false,
"properties": {
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"expected_values": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"observed_values": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"row_id",
"course_group",
"date",
"observed_values",
"expected_values"
],
"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": "2026-10-27T07:17:25.57Z",
"quality": {
"lastCalledAt": "2026-10-27T07:17:25.57Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-22-205",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Data collection completeness — Record quality audit + String normalisation + Secondary-measure weighted mean: Record quality audit + String normalisation + Secondary-measure weighted mean for supplied data collection completeness records (observed_values, expected_values). Up to 200 rows; 3 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 3 supplied-data reports for up to 200"
}What the leaf hashes
{"body":"25e162e1ac21c5ee3d1d63d31081307e6d990d92fcf2c7538dd2d6dd9e88bae3","id":436276,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793086731455366,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-22-205","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).
- 0xd2b54e9feac370fb93b3fb362f4b5ca2b7b0fb36e9d555d3076a0f39d73a4699
- 0xdc3d21afa4b935bc1b583a7f7108de79dadb7296431de064f296b01cb8cbedcb
- 0x2182c71b17d88a5d7a2879caa067b9c89f42b45df887d2729a4bb61ebf4fa9f1
- 0x22e9e5067c645e0cd4b2c05c309cc44c1fb184e83a6b24ede2c931c4b765a851
- 0xd820382272a6ccae1a3ba5a0f80dd5321830edcd9067d6b1556f996eb081ee26
- 0x1924ab9b156970c58426d22ec556e2ee8d1352f88f51cad061246c08b7043ff4
- 0x8dcb7c8fed1fd68f04bd8ddb7557ec7e76d94385210af3d93ebce115942c30ba
- 0xe4cb3be18e5ccaabb25ac24ddbf025d1a1c5711e3b3e82b16744d70c091c5f9f
- 0x6a0565ba2959414e9b67501ea93ad19dd12d1ba32108afd5fafba38aff3a5347
- 0x63fab591f55ad00bc0e680f7d7ae749a4bf51899db148b9197a165bd355e1eb9
- 0x621d4dbcfb70ab294046951fe2837a8b39f75c67fac3f911dfa479f7fb2b5b53
- 0x171aeb7198e4c29bd794c75ee3b02f70c21f3caa4365d2b304c00b891f1bbc94
- 0xc66f83a1320fe7c1faf22674eeeb7fae22ecd2f0b102d9619a484291f2ce104a
- 0x8f676edfb4faaa290229d8f4f69ab721fc627424463d62f5146b3d1ca7f2f0c6
- 0x969cd44e5a4e8dc3110540398fbf689659eb51df735c1cda5d8f021ef9ff5683
- 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
- 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
- 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
- 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699
- Day root
- 0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795
- Chained
- 0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4
- Published
- On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4