← The evidence ledger
Evidence row 413487
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-07-184
- Recorded
- Previous row
- #298843
- Body SHA-256
- de79d3cc0944eebdda6fa5fdbf7ab401a182471a831274809db6f32aa967e93f
- Leaf
- 0x42a6a618849d97b99b5cc43964dc1e807eda3e37316078c2e349d35bf9bb69be
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-07-184"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-07-184",
"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": "Research samples — Two-measure correlation + Explicit missing-value fill: Two-measure correlation + Explicit missing-value fill for supplied research samples records (sample_value, sample_weight). 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": "sample_value",
"method": "median",
"rows": [
{
"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1",
"sample_value": 10,
"sample_weight": 1
},
{
"course_group": "group-b",
"date": "2026-10-02",
"row_id": "row-2",
"sample_value": 20,
"sample_weight": 2
},
{
"course_group": "group-a",
"date": "2026-10-03",
"row_id": "row-3",
"sample_value": 15,
"sample_weight": 3
},
{
"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4",
"sample_value": 30,
"sample_weight": 4
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-07-184"
},
"sku": "assistant-ib26-education-07-184",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"field": {
"default": "sample_value",
"enum": [
"sample_value",
"sample_weight"
],
"type": "string"
},
"method": {
"default": "median",
"enum": [
"zero",
"mean",
"median"
],
"type": "string"
},
"rows": {
"default": [
{
"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1",
"sample_value": 10,
"sample_weight": 1
},
{
"course_group": "group-b",
"date": "2026-10-02",
"row_id": "row-2",
"sample_value": 20,
"sample_weight": 2
},
{
"course_group": "group-a",
"date": "2026-10-03",
"row_id": "row-3",
"sample_value": 15,
"sample_weight": 3
},
{
"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4",
"sample_value": 30,
"sample_weight": 4
}
],
"items": {
"additionalProperties": false,
"properties": {
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
},
"sample_value": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"sample_weight": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
}
},
"required": [
"row_id",
"course_group",
"date",
"sample_value",
"sample_weight"
],
"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": "2026-10-26T20:09:06.157Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-26T20:09:05.926Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-07-184",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Research samples — Two-measure correlation + Explicit missing-value fill: Two-measure correlation + Explicit missing-value fill for supplied research samples records (sample_value, sample_weight). 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":"de79d3cc0944eebdda6fa5fdbf7ab401a182471a831274809db6f32aa967e93f","id":413487,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793080586011513,"prev":298843,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-07-184","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).
- 0x42a64a2fce27a454d7f0eb135d3829b402b7b028ae62c1f1ce344aec3fc835ca
- 0xcff98f650f19128d990017f8c84c83f608b24d9ad1d7422af99f02bc00dd721f
- 0xa6e2b14da71a723ee4920ab96e9245728b6fa542a0b95b410e8c19158d717841
- 0x7c051c15422d75c62f4d06e38a321fb583bb6827187d79f8710c06e5064e2202
- 0xd30554bc9cc8cf7ebe18f7d2fa4bb3a4561e609510e4b7b6f2d78fad410e98f3
- 0xb7239c7bf129e5f04678fc23a1ccc2f2a3ce50db5b174567a2575cf136c7b5d8
- 0xa69f95787cf1168528d41b6973ce109a8c88275f168a0fc0585d8c1c3381bab2
- 0x176b76379006eed27cc0f0bc7e189df6be578044c63fb49a4158aa6ed43e9e87
- 0x0310936c50b27ba23c9bcce20272c0f438deeeaddc62c421997a931ba0cd321e
- 0x232611ceb41528cfb1bfaa047a8b5dd62cbd5c10b827e3aac64ba02d97562966
- 0xb0dc7eed01b5a695ca9cedf0d1edb8657bace4dd0c8093d1309bd503047ae4e7
- 0xc897d71d9632ce913abe93619ab42cfbeb45fae1da80e2533fb77a3b950138a9
- 0x4b4a1e815a33d351cc45dfa35f97aef5faf461590a54756a40dc36a0bbabf04b
- 0x1de9caca1fa6dbbe090ee48dad5f962bbfd09856fd897edc8c3c110272d35c56
- 0x2c117b27721eea45f6590fbccb471d21a7b0b079a53f089ecb300c63bdb3aebf
- 0x3ed50f053eca72dfd3a9d45a11935240bfe691e57835c367ddebe2cbc49efe9d
- 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
- 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
- 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699
- Day root
- 0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795
- Chained
- 0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4
- Published
- On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4