← The evidence ledger
Evidence row 90864
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-07-013
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 13e60e79c963c68f9be172bad9b599400c9977bc92e632e7c0dbdb0cf009fe58
- Leaf
- 0x477994be4a2c37b18958517dba455bdfa4c552cdd93336c5bdf754d941951418
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-07-013"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-07-013",
"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 — Record quality audit + Equal-width histogram: Record quality audit + Equal-width histogram 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": {
"bins": 5,
"field": "sample_value",
"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-07-013"
},
"sku": "assistant-ib26-education-07-013",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"bins": {
"default": 5,
"maximum": 30,
"minimum": 1,
"type": "integer"
},
"field": {
"default": "sample_value",
"enum": [
"sample_value",
"sample_weight"
],
"type": "string"
},
"rows": {
"default": [
{
"course_group": "group-a",
"date": "2026-10-01",
"row_id": "row-1",
"sample_value": 10,
"sample_weight": 1
},
{
"course_group": "group-b",
"date": "2026-10-02",
"row_id": "row-2",
"sample_value": 20,
"sample_weight": 2
},
{
"course_group": "group-a",
"date": "2026-10-03",
"row_id": "row-3",
"sample_value": 15,
"sample_weight": 3
},
{
"course_group": "group-b",
"date": "2026-10-04",
"row_id": "row-4",
"sample_value": 30,
"sample_weight": 4
}
],
"items": {
"additionalProperties": false,
"properties": {
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"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",
"bins"
],
"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": "2026-10-25T02:14:30.817Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-25T02:14:30.624Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-07-013",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Research samples — Record quality audit + Equal-width histogram: Record quality audit + Equal-width histogram 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":"13e60e79c963c68f9be172bad9b599400c9977bc92e632e7c0dbdb0cf009fe58","id":90864,"kind":"listing","method":"baseline/1","observed_us":1793025525498275,"prev":null,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-07-013","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).
- 0x4779b1696ce4c94c4245a032db2bd7f4c423c05d923ff9e919a2bd47e1b8bf92
- 0x0c39702e47e50db70862257ae8147cfe96fbf8438d07139a01767e44c65745f6
- 0xb8ded0810bb4570b3d3e34a3feb1d0a77eed8561a38c8106c3827a34c33abdcd
- 0xf85725415c568af8337e08e931acfb292a044ffc0792f1713059c3aa275c9c18
- 0xa48277a81b357b02b711395dd24c559747549a028d9ec535cf168849b3b1b9ad
- 0xeb5ac4ced5f73d70e0c4a3cd1ffcfde6c2c62b154094003a739029cdd06d4d76
- 0x808500243c9e40261a62cde7208acff22a0c2535e43753abe372e06aea5555b3
- 0x726b9406fc32b7caa77379b07cd192bb19566fe59071714e9c06f97df9d0e61d
- 0x9f42dbb02295635e04223e4a7dac5552fc990eefdd9476cc0141288133086af6
- 0x67d81f51788e4acdc8f36ca9346a133b005814670585625cf73534b4509e188a
- 0x263cc8bcddc70acc00ef06b84397a006a822410dc2b18b714a0be72a820c5b17
- 0xae3550e71ca4b0f0b86c9905b234388d6bc01a22e52324fb1ee62a553273a1fe
- 0xb86fa861d04737cb507e721eefbb066d26528fdb6017b1145c18d1223b93ee21
- 0x88e326a39b26e2c125306c9d3805d14398ace088bba9a2a0aa376b811cfb201a
- 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
- 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae