← The evidence ledger
Evidence row 1526549
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-14-156
- Recorded
- Previous row
- #554765
- Body SHA-256
- a50c31d9cb64ee7a332c3ede39311af93339a0e937e4b04a4bdf6c1decedaf2f
- Leaf
- 0xd11e1d4a8fd56c1acccae12b985f436a2b33e3a9cbf4da953b9dae7f916943c4
What was observed
{
"endpoints": [
[
"x402",
"https://market.datapackvibe.com/x402/assistant-ib26-education-14-156"
]
],
"name": "market.datapackvibe.com/x402/assistant-ib26-education-14-156",
"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": "Library circulation — Adjacent row changes + Equal-width histogram: Adjacent row changes + Equal-width histogram for supplied library circulation records (loan_count, available_copies). 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": "loan_count",
"rows": [
{
"available_copies": 1,
"course_group": "group-a",
"date": "2026-10-01",
"loan_count": 10,
"row_id": "row-1"
},
{
"available_copies": 2,
"course_group": "group-b",
"date": "2026-10-02",
"loan_count": 20,
"row_id": "row-2"
},
{
"available_copies": 3,
"course_group": "group-a",
"date": "2026-10-03",
"loan_count": 15,
"row_id": "row-3"
},
{
"available_copies": 4,
"course_group": "group-b",
"date": "2026-10-04",
"loan_count": 30,
"row_id": "row-4"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"files": [],
"order_id": "ord_example",
"result": {
"completed": true,
"workflow": "ib26-education-14-156"
},
"sku": "assistant-ib26-education-14-156",
"status": "delivered"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"bins": {
"default": 5,
"maximum": 30,
"minimum": 1,
"type": "integer"
},
"field": {
"default": "loan_count",
"enum": [
"loan_count",
"available_copies"
],
"type": "string"
},
"rows": {
"default": [
{
"available_copies": 1,
"course_group": "group-a",
"date": "2026-10-01",
"loan_count": 10,
"row_id": "row-1"
},
{
"available_copies": 2,
"course_group": "group-b",
"date": "2026-10-02",
"loan_count": 20,
"row_id": "row-2"
},
{
"available_copies": 3,
"course_group": "group-a",
"date": "2026-10-03",
"loan_count": 15,
"row_id": "row-3"
},
{
"available_copies": 4,
"course_group": "group-b",
"date": "2026-10-04",
"loan_count": 30,
"row_id": "row-4"
}
],
"items": {
"additionalProperties": false,
"properties": {
"available_copies": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"course_group": {
"default": "",
"maxLength": 80,
"type": "string"
},
"date": {
"default": "",
"maxLength": 10,
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"loan_count": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": [
"number",
"null"
]
},
"row_id": {
"default": "",
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"row_id",
"course_group",
"date",
"loan_count",
"available_copies"
],
"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": "2026-10-31T04:14:40.071Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-31T04:14:39.772Z"
},
"resource": "https://market.datapackvibe.com/x402/assistant-ib26-education-14-156",
"tags": [
"ai",
"learning",
"workflow"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Library circulation — Adjacent row changes + Equal-width histogram: Adjacent row changes + Equal-width histogram for supplied library circulation records (loan_count, available_copies). 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":"a50c31d9cb64ee7a332c3ede39311af93339a0e937e4b04a4bdf6c1decedaf2f","id":1526549,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793473141465842,"prev":554765,"subject":"x402_bazaar:https://market.datapackvibe.com/x402/assistant-ib26-education-14-156","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (246033 rows).
- 0xd11e0c9fa6211bca5a7a72475390ea3c691b223e4d3caa49e6fa8003ade41346
- 0x017bd644e537e380566e48d8813678647141a94d1c83855f43581484bbad9035
- 0x0c7eaba4a3ece22f95399bbd2401c20216ac254048538809fbb028a45e6c8d7b
- 0x1efeabfbd7c1aecdaecd0a6cf3def3ac9dd193010c1150c5394f263cf21f9d48
- 0x804de2a098a8bd7d57cda2ea237b9e33ed806eb272dcc5bd83d6e64dcfca335b
- 0x4dac1f52950ca0e1e76761ca72138fa8ac324b4256ca18fe92ad3242da460028
- 0x39e3e8b192940904398184c6422eb8db4c75beead4b9dab4835007b65a13099c
- 0xfabe316c96b426850b3773e32a3e882b8d8023a200fb6f9c4a767b0f907831b4
- 0x7423dfd2eaa447fbb7b20c7f7350dc37ec09bfb35f94a2f2ae3c47020ccdb3f1
- 0x9c56db8a3f8a1207a6a89c6a4f4f238277a1d41d44e0a2fdca06e54d266de11c
- 0xd37c8a5b1d37509a367a85e6cb3febac7814625c21df64bd1ada17a71efcc82a
- 0xe245da4cab8fc7a4e377b9f0747cfd6766184747e99e82983be79847543a746a
- 0xded599ea8c32984a8ba2e27bc0d691c8ef093be011690001291a28bda5f984d0
- 0x0914258a3cd32c99db9301b59460f511f2cae6747f3045a418ce9caa1edb7ef9
- 0xad3f03d7f9e1b66264ddfca29446faf13bc0fee7d8eec5f018d0d45302d3f8fd
- 0x24f03354dcb3a621317889ed99048bdf74b380516ca991bfb585c751d5cc7dfd
- 0xa1146af524f673843507e7427a575964580eef01bc0e0eae466a7920df017ab2
- 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57
- Day root
- 0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab
- Chained
- 0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980
- Published
- On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0