← The evidence ledger
Evidence row 90463
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-03-037
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 5aa5db6bfbb418e139acf2d7fb46ed150bca3992abda192bc400c15aa9514f34
- Leaf
- 0xbfa8e4862240d8985b7e560ea329af01ddaeda61b45eae126b205d8ac81a50c6
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-03-037"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-03-037",
"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": "Course completion — String normalisation + Explicit missing-value fill: String normalisation + Explicit missing-value fill for supplied course completion records (completions, enrolments). 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": "completions",
"method": "median",
"rows": [
{
"completions": 10,
"course_group": "group-a",
"date": "2026-10-01",
"enrolments": 1,
"row_id": "row-1"
},
{
"completions": 20,
"course_group": "group-b",
"date": "2026-10-02",
"enrolments": 2,
"row_id": "row-2"
},
{
"completions": 15,
"course_group": "group-a",
"date": "2026-10-03",
"enrolments": 3,
"row_id": "row-3"
},
{
"completions": 30,
"course_group": "group-b",
"date": "2026-10-04",
"enrolments": 4,
"row_id": "row-4"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-03-037"
},
"sku": "assistant-ib26-education-03-037",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"field": {
"default": "completions",
"enum": [
"completions",
"enrolments"
],
"type": "string"
},
"method": {
"default": "median",
"enum": [
"zero",
"mean",
"median"
],
"type": "string"
},
"rows": {
"default": [
{
"completions": 10,
"course_group": "group-a",
"date": "2026-10-01",
"enrolments": 1,
"row_id": "row-1"
},
{
"completions": 20,
"course_group": "group-b",
"date": "2026-10-02",
"enrolments": 2,
"row_id": "row-2"
},
{
"completions": 15,
"course_group": "group-a",
"date": "2026-10-03",
"enrolments": 3,
"row_id": "row-3"
},
{
"completions": 30,
"course_group": "group-b",
"date": "2026-10-04",
"enrolments": 4,
"row_id": "row-4"
}
],
"items": {
"additionalProperties": false,
"properties": {
"completions": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"enrolments": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"row_id",
"course_group",
"date",
"completions",
"enrolments"
],
"type": "object"
},
"maxItems": 200,
"minItems": 1,
"type": "array"
}
},
"required": [
"rows",
"field",
"method"
],
"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": "2026-10-25T14:28:23.65Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-25T14:28:23.418Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-03-037",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Course completion — String normalisation + Explicit missing-value fill: String normalisation + Explicit missing-value fill for supplied course completion records (completions, enrolments). 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":"5aa5db6bfbb418e139acf2d7fb46ed150bca3992abda192bc400c15aa9514f34","id":90463,"kind":"listing","method":"baseline/1","observed_us":1793025524638958,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-03-037","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).
- 0xbfa8d972bffc2c4a2925f0cd01eabc0b02442c6b36e74bc61b38b1f302f9e552
- 0x20b4ebd5616478c8436c09682b6468fe4330608d2e6d4bef4ba052d29d7d355a
- 0xc4af3596f49db0879502e4b9615dbf3b1e23043fcc30bdb0c20c5c7d1d94352f
- 0x3e62b46cc251bc539d43b12656722de3c2866e05fbdddd1c231f18b7bd442c4d
- 0xb1f5f130670d91448f4cab2e401824c9f985d1d0595a3c36ebfe8bb0e93e8429
- 0xf339da3324b6e0788e949de5e8d901c9b195d94493274bd526dfe09d888733d6
- 0x25c413f16f5959e32ca57f3b0545266c11c89aee2401871a6f9ded17e16f3ce8
- 0xa40caef605531919fff1a8fccf5f7453ee266234a3842eff0b8342aade4c73f2
- 0x2acb1759545dffd0f9d69f1505ae44a8b895f6571c40306d90c2f277ca0e6173
- 0x756a464688b460d8d275513c88e70a991307cf0931a5c4f982289e598f3c1b81
- 0x0decbdcd600e934c38d679c1b99f27ba6676644e856ed6ba36bca74feb432866
- 0xc520305226daa0caf1c2416854f726ec072c950c1903497b2a1e88b0c6f406da
- 0x96eae331a78c1c9248bc58130ff83d31b884760a51fe7191de2a39105ae7c072
- 0xdbe2e8dd65ea1248b2936612538f18268abd5cf27ebdab3737694571ad496004
- 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
- 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae