← The evidence ledger
Evidence row 257741
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-02-083
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 7e3a8e09736347aee6265bdcb364e85266be86f78a822a576b8f0a3ffc6aa731
- Leaf
- 0x8c2e3835ec904189bd944466c78b88418095e6c0a09d80f43096d93d7414fb09
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-02-083"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-02-083",
"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": "Assessment item observations — Numeric distribution + Date by category pivot: Numeric distribution + Date by category pivot for supplied assessment item observations records (correct_responses, attempts). 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": "correct_responses",
"rows": [
{
"attempts": 1,
"correct_responses": 10,
"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1"
},
{
"attempts": 2,
"correct_responses": 20,
"course_group": "group-b",
"date": "2026-10-02",
"row_id": "row-2"
},
{
"attempts": 3,
"correct_responses": 15,
"course_group": "group-a",
"date": "2026-10-03",
"row_id": "row-3"
},
{
"attempts": 4,
"correct_responses": 30,
"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-02-083"
},
"sku": "assistant-ib26-education-02-083",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"field": {
"default": "correct_responses",
"enum": [
"correct_responses",
"attempts"
],
"type": "string"
},
"rows": {
"default": [
{
"attempts": 1,
"correct_responses": 10,
"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1"
},
{
"attempts": 2,
"correct_responses": 20,
"course_group": "group-b",
"date": "2026-10-02",
"row_id": "row-2"
},
{
"attempts": 3,
"correct_responses": 15,
"course_group": "group-a",
"date": "2026-10-03",
"row_id": "row-3"
},
{
"attempts": 4,
"correct_responses": 30,
"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4"
}
],
"items": {
"additionalProperties": false,
"properties": {
"attempts": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"correct_responses": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"row_id",
"course_group",
"date",
"correct_responses",
"attempts"
],
"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": "2026-10-26T14:17:59.616Z",
"quality": {
"lastCalledAt": "2026-10-26T14:17:59.616Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-02-083",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Assessment item observations — Numeric distribution + Date by category pivot: Numeric distribution + Date by category pivot for supplied assessment item observations records (correct_responses, attempts). 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":"7e3a8e09736347aee6265bdcb364e85266be86f78a822a576b8f0a3ffc6aa731","id":257741,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793029769260196,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-02-083","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).
- 0x8c2e90626daa8c3bbe600f196d15d16ae81fe0329ed02d5091f6b1245c8ae4bd
- 0x44e379d9cc61fb2dddf3b508ed84454e0d86252f5321cc3faf10ed02ad672e6d
- 0xa0b2c18b622f441c79b4f65cff9776e70abf699caa2aa5224c7c2bcf239ae076
- 0x007971a0fc26de1640c2922f72a4ed188a84ba31cde547e39def9d68c97b2078
- 0xca77fe885e06bff5732082aabdae2f9520af790bf0d911c2c067d35c47f2228b
- 0x8bf7501c40113be46986d550f301d007f504f0f162edef30dd122ded10634ae5
- 0x20a6975a54843a54d47ab71d35295c72562d2325b08444f1d3dfd65f5e3eec4e
- 0x696af01180a57bc5cf2bd010e83796ec6871344fa987336d8139fcc51aa377de
- 0x6573f8056df2c62589b87d71ae7c8a6fcb4448cce7230c6b02f03eee6966fb0b
- 0xf37a2a30f04ffcfc24f46f4209ea65386afe8bdf9c467b02689e621d61bebaf5
- 0xc0c39d9d8be0b7d600d3badab7754e326243b0d4eb60c4b5cd965d7d764d1d04
- 0xfc86b2282cb8f91e68280efe01f3c50453c94fae2ef04af1a75d4b05d0af2b8f
- 0xd5ec7ffaecac790d8adfa0620b0a5494758f862e3090b49e556a6ecbad2f0782
- 0x78ac2b34737774659a6a411f4d10b8ba570d40699d9f277321c3a32ff03d1dc9
- 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
- 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
- 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae