← The evidence ledger
Evidence row 19938
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/commerce/changed
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 398e22a32200254c80136248e7cf49c97e879acbb6cc6bc4c0d6731a0f486e44
- Leaf
- 0x8f3772c33ee73004e16e9c593c45824afc15a18097d0284cda834365bdf3d6d9
What was observed
{
"endpoints": [
[
"x402",
"https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/commerce/changed"
]
],
"name": "Forest Commerce",
"owner_address": "0xb48d918151311f982d542ef5c84cc1cd54cff7a9",
"raw": {
"accepts": [
{
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xb48D918151311F982d542eF5C84cc1cd54CFf7a9",
"scheme": "exact"
}
],
"description": "Cheaply detect material public product changes in price, availability, selected variant or seller using a deterministic hash. Timestamps, images and analytics noise are excluded. Base mainnet USDC",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"previous_hash": "sha256:0000000000000000000000000000000000000000000000000000000000000000",
"url": "https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/products/forest-demo-widget"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"capability": "commerce.changed",
"data": {
"changed": false,
"changed_fields": [],
"current_summary": {},
"new_hash": "example",
"previous_hash": "example"
},
"meta": {
"cache": "miss",
"checked_at": "2026-01-01T00:00:00.000Z",
"duration_ms": 0,
"provider": "state-hash"
},
"ok": true,
"version": "1"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"previous_hash": {
"description": "Earlier result hash used to detect a material change.",
"pattern": "^sha256:[a-f0-9]{64}$",
"type": "string"
},
"url": {
"description": "Public HTTP(S) URL to inspect, resolve, or compare.",
"maxLength": 2048,
"pattern": "^https?://",
"type": "string"
}
},
"required": [
"url"
],
"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": {
"additionalProperties": false,
"properties": {
"capability": {
"const": "commerce.changed",
"description": "Public capability value used to scope this lookup."
},
"data": {
"additionalProperties": false,
"description": "Public data value used to scope this lookup.",
"properties": {
"changed": {
"description": "Public changed value used to scope this lookup.",
"type": [
"boolean",
"null"
]
},
"changed_fields": {
"description": "Public changed fields value used to scope this lookup.",
"type": "array"
},
"current_summary": {
"additionalProperties": true,
"description": "Public identifiers value used to scope this lookup.",
"type": "object"
},
"new_hash": {
"description": "Public new hash value used to scope this lookup.",
"type": "string"
},
"previous_hash": {
"description": "Earlier result hash used to detect a material change.",
"type": [
"string",
"null"
]
}
},
"required": [
"changed",
"previous_hash",
"new_hash",
"changed_fields",
"current_summary"
],
"type": "object"
},
"meta": {
"additionalProperties": false,
"description": "Public meta value used to scope this lookup.",
"properties": {
"cache": {
"description": "Public cache value used to scope this lookup.",
"enum": [
"hit",
"miss",
"bypass"
]
},
"checked_at": {
"description": "Public checked at value used to scope this lookup.",
"type": "string"
},
"duration_ms": {
"description": "Public duration ms value used to scope this lookup.",
"minimum": 0,
"type": "integer"
},
"provider": {
"description": "Public provider value used to scope this lookup.",
"type": [
"string",
"null"
]
}
},
"required": [
"provider",
"checked_at",
"cache",
"duration_ms"
],
"type": "object"
},
"ok": {
"const": true,
"description": "Public ok value used to scope this lookup."
},
"version": {
"const": "1",
"description": "Package version whose public metadata should be checked."
}
},
"required": [
"ok",
"capability",
"version",
"data",
"meta"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-26T00:44:37.019Z",
"quality": {
"l30DaysTotalCalls": 4,
"l30DaysUniquePayers": 3,
"lastCalledAt": "2026-10-26T00:44:36.823Z"
},
"resource": "https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/commerce/changed",
"serviceName": "Forest Commerce",
"tags": [
"commerce"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Cheaply detect material public product changes in price, availability, selected variant or seller using a deterministic hash. Timestamps, images and analytics noise are excluded. Base mainnet USDC"
}What the leaf hashes
{"body":"398e22a32200254c80136248e7cf49c97e879acbb6cc6bc4c0d6731a0f486e44","id":19938,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025332257434,"prev":null,"subject":"x402_bazaar:https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/commerce/changed","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).
- 0x8f381ed73cf974c59050b4f475767d7dbc56416341bf7ec23d4b9d3d0866159d
- 0xd38cb133398dc1c9dce54937262e4d9deb0de3d57a2e9acf18b965a554a3b631
- 0xbb7b61f19f7b547449fcdf30f705ae9b6fa8aaace4729a960553fa103894a12f
- 0xe12caa4d7e4ecc2cf51983ab16c93ff316bdad844a97104131bd9560c72f5168
- 0x692c9b279f001f1e16ccc9a665e17e21d38b635c7a7916e87273cb83ef711880
- 0x99af4e8bf7e4f5cf11335835174b478a28747f39ee6686e7257a872e0b9cbd8d
- 0xee1f1180acd696011a2141448143d95da3bbfa6ee9a2ccfc8f345b0c902239c8
- 0x6c41f999d5a97b210edf3ef302c8a1f9ec235fe16e4f052aa7a305e81e342f03
- 0xbe57338dc8e149be351285c9103096d4aed9ac5df806402b12630467ac57d26f
- 0x8665760a589b1324397302f9a49dc33b42b22f68a2e06cfa1d55ff2fcfa7305c
- 0x4ef4c3a70c6b26977cbaf534a1ab9edcc651b2d385e682cd5a3f54a060ec0018
- 0x4634efb8094d1dd2874013b832ad8653e49400f57bf98efdcc5f925ed08d0f5b
- 0xc0cb184c9bdf71abcf18fda97bd59289153d120dbf8fee9f517b63bf303deb95
- 0xf0edabbb9ba0d643e5505d19d07637eb6f6aed0a1c7356af43ae7d84ae9ef0c5
- 0xf0bd63870f0bb378fa300bd33563050dcb7b3e02b44eb3ee550c1c534ec4b246
- 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
- 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae