← The evidence ledger
Evidence row 125374
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://x402-niche-briefs.fly.dev/v1/listing-quality-teaser
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- eec6889eda2f66c0af15ff6c19bc76e9a1dd57001dd7ff3471b0f18302fba277
- Leaf
- 0x2a19e744bb8ace11c8c6fe322f1189d3d8991a40a9fd8fcaa2491747e6b4f69f
What was observed
{
"endpoints": [
[
"x402",
"https://x402-niche-briefs.fly.dev/v1/listing-quality-teaser"
]
],
"name": "x402 Listing Quality Teaser",
"owner_address": "0x847f54ae8ddfd71ed7bc930c1f7a73576fab03a9",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x847f54ae8dDFD71ed7bC930C1f7a73576FAb03A9",
"scheme": "exact"
}
],
"description": "Top 3 x402 resources by heuristic calls-vs-unique-payers pattern score from the CDP Bazaar and PayAI catalogs, with host, resource, unique_payers, calls and wash_risk (a heuristic score, not a finding about any seller). No input. Full scored list: /v1/listing-quality ($0.01).",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {},
"type": "http"
},
"output": {
"example": {
"as_of": "2026-10-17T02:57:40.944Z",
"message": "Teaser only (truncated heuristic calls-vs-unique-payers sample). Full listing-quality report with all hosts: GET /v1/listing-quality at $0.01 USDC.",
"sample_size": 3,
"source": "cdp,payai",
"teaser": true,
"top_hosts": [
{
"calls": 4000,
"host": "api.seller.example",
"resource": "https://api.seller.example/v1/resource",
"unique_payers": 40,
"wash_risk": "high"
}
],
"total_items": 100,
"upsell_price": "$0.01",
"upsell_url": "https://x402-niche-briefs.fly.dev/v1/listing-quality"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"as_of": {
"type": "string"
},
"message": {
"type": "string"
},
"sample_size": {
"type": "number"
},
"source": {
"type": "string"
},
"teaser": {
"type": "boolean"
},
"top_hosts": {
"items": {
"properties": {
"calls": {},
"host": {
"type": "string"
},
"resource": {
"type": "string"
},
"unique_payers": {},
"wash_risk": {
"type": "string"
}
},
"required": [
"host",
"resource",
"wash_risk",
"unique_payers",
"calls"
],
"type": "object"
},
"type": "array"
},
"total_items": {
"type": "number"
},
"upsell_price": {
"type": "string"
},
"upsell_url": {
"type": "string"
}
},
"required": [
"as_of",
"teaser",
"source",
"sample_size",
"total_items",
"top_hosts",
"upsell_url",
"upsell_price",
"message"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-25T15:03:03.609Z",
"quality": {
"l30DaysTotalCalls": 5,
"l30DaysUniquePayers": 3,
"lastCalledAt": "2026-10-25T15:03:03.43Z"
},
"resource": "https://x402-niche-briefs.fly.dev/v1/listing-quality-teaser",
"serviceName": "x402 Listing Quality Teaser",
"tags": [
"x402",
"listing-quality",
"wash",
"unique-payers",
"discovery"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Top 3 x402 resources by heuristic calls-vs-unique-payers pattern score from the CDP Bazaar and PayAI catalogs, with host, resource, unique_payers, calls and wash_risk (a heuristic score, not a finding about any seller). No input. Full scored list: /v1/listing-quality ($0.01)."
}What the leaf hashes
{"body":"eec6889eda2f66c0af15ff6c19bc76e9a1dd57001dd7ff3471b0f18302fba277","id":125374,"kind":"listing","method":"baseline/1","observed_us":1793025626127946,"prev":null,"subject":"x402_bazaar:https://x402-niche-briefs.fly.dev/v1/listing-quality-teaser","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).
- 0x2a1a290538da1f1f154b0ef81fec969de64d0a1a611237b3ea7ebc6d2186a794
- 0x88d11a247bdee6247573a2f8178c572d9c806b470d58c22431517ab744b6d706
- 0x26eeea964c5960bbc90db04d29802ece323ce92f514539b675126ef95de072a1
- 0x1ead8cefc775ae751e24ce6340665ec8df8efe5b74e4b7eef84774e736523fe0
- 0xead3a95718199f2891577e98b3fce28ec3aba6f4c6b4d05e42482025e2e539ed
- 0xd6c59a493a70c4c8d7d609f83e1e726256b28677127cd4ad1df47009efc925f9
- 0x62acfcf481d9c821679c9b14911de0638d113ad423fd5e1fb863a54ee0326efc
- 0x5205bbc32da985975a6492607f06ab9df87c6633ad97705176f02f26c499f4f5
- 0x90cf978de7063c01f8056504e264fffe8b4dce6b7e0f25838ce2b901625136df
- 0xceecb11ae941a028ba38b36bebeaea0d1db672b60f285af8fdaeb552f5fba197
- 0x7b0bb4483af5e03d9f02e715a84d790ec3df1fc57d38f1d1a5ed296a7e822d7f
- 0xeab0020f03650c1a79ed79927ae9d808c59a41295a86d1285582516590c954e6
- 0x16a8fb19a5e4f4535e7cb3fce5c15ecfa188586bb74e347ee71164f8af27dfe1
- 0xd843afcced75dedd39194ff9bd12326b88099e6112686db2299392d022dc3146
- 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
- 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
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- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae