← The evidence ledger
Evidence row 1047043
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-13-033
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- fa2f37f7a9cdd1e27484e1b66739694a5fa28bae9c0e867db41edcfcc64b6bbf
- Leaf
- 0x30163e8941d4298ed99a2ba9a553d0e7d72678886446699195a5d246d518be53
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-13-033"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-13-033",
"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": "Experiment run timing — String normalisation + Two-measure correlation: String normalisation + Two-measure correlation for supplied experiment run timing records (run_seconds, sample_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": {
"rows": [
{
"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1",
"run_seconds": 10,
"sample_count": 1
},
{
"course_group": "group-b",
"date": "2026-10-02",
"row_id": "row-2",
"run_seconds": 20,
"sample_count": 2
},
{
"course_group": "group-a",
"date": "2026-10-03",
"row_id": "row-3",
"run_seconds": 15,
"sample_count": 3
},
{
"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4",
"run_seconds": 30,
"sample_count": 4
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-13-033"
},
"sku": "assistant-ib26-education-13-033",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"rows": {
"default": [
{
"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1",
"run_seconds": 10,
"sample_count": 1
},
{
"course_group": "group-b",
"date": "2026-10-02",
"row_id": "row-2",
"run_seconds": 20,
"sample_count": 2
},
{
"course_group": "group-a",
"date": "2026-10-03",
"row_id": "row-3",
"run_seconds": 15,
"sample_count": 3
},
{
"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4",
"run_seconds": 30,
"sample_count": 4
}
],
"items": {
"additionalProperties": false,
"properties": {
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
},
"run_seconds": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"sample_count": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
}
},
"required": [
"row_id",
"course_group",
"date",
"run_seconds",
"sample_count"
],
"type": "object"
},
"maxItems": 200,
"minItems": 1,
"type": "array"
}
},
"required": [
"rows"
],
"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": "2026-10-29T15:29:06.769Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-29T15:29:06.521Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-13-033",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Experiment run timing — String normalisation + Two-measure correlation: String normalisation + Two-measure correlation for supplied experiment run timing records (run_seconds, sample_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":"fa2f37f7a9cdd1e27484e1b66739694a5fa28bae9c0e867db41edcfcc64b6bbf","id":1047043,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793298812224032,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-13-033","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (242798 rows).
- 0x3015d563f3bf5eb6a326f9c5a3ae42782d036af99be468b80148935ba55c97e0
- 0x386ce441e6de56ed140bbe560a158410ba29f5114e72889917345cd4afc57036
- 0x39e7b4fb5e5d994d5f579006b390f64bee1712e116a92fe792caceffc5e0bfdc
- 0xd20172e7924a793010e3d138b7adae41f726e75b15c0a7630b8faebb7d9bd0d3
- 0x661cb13fca00a4bd6fc3ef9f41da67ae08a830bfd7017679f04bb2ff89e715a1
- 0x3c2792d61308dabc69c40187593724c36020655ee911e239e886f65870cbfe83
- 0x9ae566dbd061235bd0e503e66f7e5d831bccc1a40b6fbb083a353f50c4384abc
- 0xa5b0e52368223466242af8d3ca4828e36e0e83f3d0156f008547a620d736f0d1
- 0xcf3928212c1a27dfd874e71507694db3816e754684e0742d36d4c7381ab7a4bc
- 0x2a94d00923ccd7d22e9744ff4df9a3cd9bb6a740b22b565181b3982abb8a8aeb
- 0xc7966c4724bd031b58dc5793f26a63926e16d6dcaef5439651b2d76e0d9810be
- 0x77cc691d6e181a284660f8c49d2c4b7f8c2e147cdd84b4b364121a76c825bb3e
- 0x15a9e69ec55b3b3b0172aac34642cd2d4dd9a7825683c77c1f52fbc1dc101637
- 0xcaae1928370ce22d2a564247e7948dcda78bb8c3ef9a7d8bdfa6e00f84c1e28c
- 0x00268e62f7d5ca6313e0e60afdc2bd4f52c6dbdb3b4b4d27e01e634b4bcb1d2c
- 0x1c3764b490d23b94e5ac838c89f8d3850dedb0819196f367da2479c7a88bf2c0
- 0xd76435ead496863d8b0bfab3434f54cd11da3c49d104fc4064b9cb3381567bbd
- 0xd56e61af23709ed9f460471e3c08400c0142ee83e1fd9057e46350d12edf9c07
- Day root
- 0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c
- Chained
- 0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6
- Published
- On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1