← The evidence ledger
Evidence row 122406
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://tanod.dev/v1/x402/lint
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- f5045600be0b83592d05975bd997c9abe1f13b4c0b7cad3ef2ee850ad8fb8e0f
- Leaf
- 0x66c72d13e92c658262a9a02a7be5135f765a5744bf3d0bb6f7e9cea0a3217d96
What was observed
{
"endpoints": [
[
"x402",
"https://tanod.dev/v1/x402/lint"
]
],
"name": "Tanod utilpeek",
"owner_address": "0x593857a4a4f619543ea12394137c3004ce841720",
"raw": {
"accepts": [
{
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
"scheme": "exact"
},
{
"amount": "1000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
"scheme": "exact"
},
{
"amount": "1000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "RMk9k3VC8dr4hhjgFh88rGhjAbzfBzHxJJ5n2fTcqus",
"scheme": "exact"
}
],
"description": "utilpeek (Tanod) x402 listing lint: description, resource URL, schema and payment fields checked, with a suggested description. Use when an agent must lint an x402 listing, or check which of a seller's routes the Bazaar lists, before publishing.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"listing": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"network": "eip155:8453",
"payTo": "0x209693Bc6afc0C5328bA36FaF03C514EF312287C",
"scheme": "exact"
}
],
"resource": {
"description": "Weather forecast for a city.",
"mimeType": "application/json",
"url": "https://api.example.com/v1/weather"
},
"x402Version": 2
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"checked_at": "2026-10-09T08:00:00Z",
"checks_passed": 9,
"description_length": 28,
"errors": 0,
"note": "Automated checks of the listing rules Tanod knows (Coinbase CDP's 500-character description limit, the Bazaar's https requirement, required fields); the facilitator or catalog may apply others. The suggested description is a draft to review, not a rewrite of your meaning.",
"problems": [
{
"code": "missing_use_when",
"message": "When-to-use sentence: No \"use when\" sentence found. Fix: Add one, for example: \"Use when an agent needs X before doing Y.\" Curators look for it; 94% of Bazaar listings lack it.",
"severity": "warning"
}
],
"score": 95,
"source": "listing",
"suggested_description": "Weather forecast for a city. Use when an agent needs weather data from this endpoint.",
"suggested_length": 85,
"url": null,
"warnings": 1
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"host": {
"anyOf": [
{
"maxLength": 253,
"minLength": 4,
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"description": "Mode coverage: the seller's public host name (such as api.example.com, no scheme or path). Its /openapi.json and /.well-known/x402 are read. Send this or `openapi_url`."
},
"listing": {
"anyOf": [
{
"additionalProperties": true,
"type": "object"
},
{
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"description": "The listing to lint, as JSON: an x402 PaymentRequired object (v1 or v2), a bare accepts[] entry or a Bazaar discovery item. The JSON text or the base64 PAYMENT-REQUIRED header value of one is accepted as a string. At most 1 MB. Mode lint: send this or `url`."
},
"mode": {
"default": "lint",
"description": "`lint` (default, USD 0.001): lint one listing, send `listing` or `url`. `coverage` (USD 0.01): compare a seller's paid routes with the CDP Bazaar, send `host` or `openapi_url`.",
"enum": [
"lint",
"coverage"
],
"type": "string"
},
"openapi_url": {
"anyOf": [
{
"maxLength": 2048,
"minLength": 9,
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"description": "Mode coverage: an https URL of the seller's OpenAPI document (JSON, at most 2 MB). The seller host is the URL's host. Send this or `host`."
},
"url": {
"anyOf": [
{
"maxLength": 2048,
"minLength": 9,
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"description": "An https x402 endpoint: it is fetched once (GET, else POST if GET is 405) and its 402 response (PAYMENT-REQUIRED header, else body) is linted. Public https hosts only. Mode lint: send this or `listing`."
}
},
"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": {
"properties": {
"checked_at": {
"type": "string"
},
"checks_passed": {
"type": "integer"
},
"description_length": {
"type": "integer"
},
"discovery_url": {
"type": [
"string",
"null"
]
},
"errors": {
"type": "integer"
},
"host": {
"type": "string"
},
"http_status": {
"type": "integer"
},
"method": {
"type": "string"
},
"mode": {
"enum": [
"coverage"
],
"type": "string"
},
"note": {
"type": "string"
},
"openapi_url": {
"type": [
"string",
"null"
]
},
"problems": {
"items": {
"properties": {
"code": {
"type": "string"
},
"message": {
"type": "string"
},
"severity": {
"enum": [
"error",
"warning"
],
"type": "string"
}
},
"required": [
"code",
"severity",
"message"
],
"type": "object"
},
"type": "array"
},
"read_from": {
"enum": [
"header",
"body"
],
"type": "string"
},
"routes": {
"items": {
"type": "object"
},
"type": "array"
},
"score": {
"maximum": 100,
"minimum": 0,
"type": "integer"
},
"snapshot": {
"type": [
"string",
"null"
]
},
"source": {
"enum": [
"listing",
"url",
"coverage"
],
"type": "string"
},
"sources": {
"type": "object"
},
"suggested_description": {
"type": "string"
},
"suggested_length": {
"type": "integer"
},
"summary": {
"type": "object"
},
"traps": {
"items": {
"type": "object"
},
"type": "array"
},
"truncated": {
"type": "boolean"
},
"url": {
"type": [
"string",
"null"
]
},
"warnings": {
"type": "integer"
}
},
"required": [
"source",
"checked_at",
"note"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"builder-code": {
"info": {
"a": "bc_h7pxv14u"
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"a": {
"description": "App builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"s": {
"description": "Service builder codes",
"items": {
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"maxItems": 11,
"type": "array"
},
"w": {
"description": "Wallet builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
}
},
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791364949/bazaar-icons/d8143c9bc952f5cd.png",
"lastUpdated": "2026-10-10T23:40:42.152Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-10T23:40:41.462Z"
},
"resource": "https://tanod.dev/v1/x402/lint",
"serviceName": "Tanod utilpeek",
"tags": [
"utilpeek",
"x402",
"lint",
"fx-rates",
"qr-code"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "utilpeek (Tanod) x402 listing lint: description, resource URL, schema and payment fields checked, with a suggested description. Use when an agent must lint an x402 listing, or check which of a seller's routes the Bazaar lists, before publishing."
}What the leaf hashes
{"body":"f5045600be0b83592d05975bd997c9abe1f13b4c0b7cad3ef2ee850ad8fb8e0f","id":122406,"kind":"listing","method":"baseline/1","observed_us":1793025621582944,"prev":null,"subject":"x402_bazaar:https://tanod.dev/v1/x402/lint","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).
- 0x66c76e5cb8d02f4dd0599fdadb410501d36fca69f1647492f17ab6ededeb7917
- 0xcdb136122685e88a1891f4939eeca6487b4dc3d156609cb163d21db180fab4d5
- 0x7d170aa10cc19c70b3710373e9c899d37738c42285a194ae5a3d808245fb1300
- 0x8de6645b12f2d63f177490b7fb6b95cfe22486c6651e731a51616167dfa961ee
- 0x811ca9d548106547e1fc7358aff80e3ee09c4f3b72f89d8c94802d05623de549
- 0x3abd554c7e5e42e25b92f69dd2b80f9065d9b9c7aacae6daf4449576c296c426
- 0xf319a9e5c61670796190c68219c087f06563995b90450f9963fda003324d7855
- 0xa0c12f38e9ff53def5906e2a34fff4fd2a0a0c81fa8cbb0be9cd38898fed6962
- 0x4f258e530d6d1a372b1d75127867f481897f7af6e258525d28b09bb88a6f65a6
- 0x1532666d1a6a9b626e54c3e93335a185ec833ad947243bdea3c723654b68d9f4
- 0x13951c97c827e2025801573dada28cfb5f8038c9b4de741f9d526cb67b3fe605
- 0x260682fd6ecd274e73505c5e0bd798abdd0e702afca4f8eebd4331b607a6b175
- 0x5f350d70c252ff1169c0210fd45fce1b0ab8d7316f048741a9e90a6c8cb65dcf
- 0x9a79c65e077cd9da9d436b3ade6f5ddc0d244510c4d5903ef2f02d81205f7666
- 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
- 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae