← The evidence ledger
Evidence row 1038055
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/package/preflight
- Recorded
- Previous row
- #407185
- Body SHA-256
- 2fa555eeca7f56e4b8ef34be9ab27cf6082e2c5f3fb74e187df818153ac40b94
- Leaf
- 0x6d1cc4a2f982964ae76877f99ce08abcee176f588b6503b544a9f5cfcf403785
What was observed
{
"endpoints": [
[
"x402",
"https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/package/preflight"
]
],
"name": "Forest Packages",
"owner_address": "0xb48d918151311f982d542ef5c84cc1cd54cff7a9",
"raw": {
"accepts": [
{
"amount": "2000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xb48D918151311F982d542eF5C84cc1cd54CFf7a9",
"scheme": "exact"
}
],
"description": "Verify whether a specific npm or PyPI package version exists before installation, resolve the current/latest version, and report deprecation or yank state when available, plus license and runtime requirement. This is a public-registry package install preflight; it does not resolve dependency graphs or perform vulnerability analysis. Base mainnet USDC",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"ecosystem": "npm",
"package": "express",
"version": "5.1.0"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"capability": "package.preflight",
"data": {
"deprecated": false,
"ecosystem": "npm",
"exists": true,
"latest_version": "5.1.0",
"license": "MIT",
"outdated": false,
"package": "express",
"project_url": "https://expressjs.com/",
"registry_url": "https://registry.npmjs.org/express",
"requested_version": "5.1.0",
"requested_version_exists": true,
"requires_runtime": ">= 18",
"resolved_version": "5.1.0",
"yanked": null
},
"meta": {
"cache": "miss",
"checked_at": "2026-09-26T00:00:00.000Z",
"duration_ms": 25,
"provider": "npm"
},
"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": {
"ecosystem": {
"description": "Public ecosystem value used to scope this lookup.",
"enum": [
"npm",
"pypi"
]
},
"package": {
"description": "Public package name to inspect.",
"maxLength": 214,
"minLength": 1,
"type": "string"
},
"version": {
"description": "Package version whose public metadata should be checked.",
"maxLength": 128,
"minLength": 1,
"type": "string"
}
},
"required": [
"ecosystem",
"package"
],
"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": "package.preflight",
"description": "Public capability value used to scope this lookup."
},
"data": {
"additionalProperties": false,
"description": "Public data value used to scope this lookup.",
"properties": {
"deprecated": {
"description": "Public requested version exists value used to scope this lookup.",
"type": [
"boolean",
"null"
]
},
"ecosystem": {
"description": "Public ecosystem value used to scope this lookup.",
"enum": [
"npm",
"pypi"
]
},
"exists": {
"description": "Public exists value used to scope this lookup.",
"type": "boolean"
},
"latest_version": {
"description": "Public requested version value used to scope this lookup.",
"type": [
"string",
"null"
]
},
"license": {
"description": "Public requested version value used to scope this lookup.",
"type": [
"string",
"null"
]
},
"outdated": {
"description": "Public requested version exists value used to scope this lookup.",
"type": [
"boolean",
"null"
]
},
"package": {
"description": "Public package name to inspect.",
"type": "string"
},
"project_url": {
"description": "Public requested version value used to scope this lookup.",
"type": [
"string",
"null"
]
},
"registry_url": {
"description": "Public requested version value used to scope this lookup.",
"type": [
"string",
"null"
]
},
"requested_version": {
"description": "Public requested version value used to scope this lookup.",
"type": [
"string",
"null"
]
},
"requested_version_exists": {
"description": "Public requested version exists value used to scope this lookup.",
"type": [
"boolean",
"null"
]
},
"requires_runtime": {
"description": "Public requested version value used to scope this lookup.",
"type": [
"string",
"null"
]
},
"resolved_version": {
"description": "Public requested version value used to scope this lookup.",
"type": [
"string",
"null"
]
},
"yanked": {
"description": "Public requested version exists value used to scope this lookup.",
"type": [
"boolean",
"null"
]
}
},
"required": [
"ecosystem",
"package",
"exists",
"requested_version",
"requested_version_exists",
"resolved_version",
"latest_version",
"outdated",
"deprecated",
"yanked",
"license",
"requires_runtime",
"project_url",
"registry_url"
],
"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": "2026-10-25T23:19:02.112Z",
"quality": {
"l30DaysTotalCalls": 4,
"l30DaysUniquePayers": 3,
"lastCalledAt": "2026-10-25T23:19:01.922Z"
},
"resource": "https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/package/preflight",
"serviceName": "Forest Packages",
"tags": [
"package",
"npm",
"pypi",
"registry",
"package-version"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Verify whether a specific npm or PyPI package version exists before installation, resolve the current/latest version, and report deprecation or yank state when available, plus license and runtime requirement. This is a public-registry package install preflight; it does not resolve dependency graphs or perform vulnerability analysis. Base mainnet USDC"
}What the leaf hashes
{"body":"2fa555eeca7f56e4b8ef34be9ab27cf6082e2c5f3fb74e187df818153ac40b94","id":1038055,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793298249791500,"prev":407185,"subject":"x402_bazaar:https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/package/preflight","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (242798 rows).
- 0x6d1c791b7128db8fcaeff099a7c32b18a9f49ecf65366c7f15e2e13cd266059d
- 0x604e31ef732f10c42ea44b386c0bb66d0f5453c22f5f1d8d9324180aceefaa5e
- 0xe5ad0ad1fad6fe5e8d2196f2b6999c6774bfe69b531f3addae79b0b545a4bb82
- 0x346ec687bc7d708fa083c66e21341696d326b4f02b2e9fff871f141c1bcb7265
- 0xf9e1098db32491344b7dc55978629d39c474d3e0cb8e6e2fb916a611d54185b8
- 0x4aaf202d998fb400232f30c8c5c2157bdf6b4b2cb1584559f6d5d517395adfc7
- 0x714fc1d1422eccb7d324108ee7d78d0bea3c252858c7d2a656a37ac79ad22991
- 0x1b6618e1c950198cf62ac762f9dbe6a3aad34950f1e9bdb7fec450242bc3a0a1
- 0x0841aa6cf597ead92f4ace00e8df1ebcc5df1b3a515b51b83999a9418aefee3d
- 0x3119cac66fa2827870ee8a5d6342d0dd0ebbe08a57dd21c917f97934afc6c148
- 0x822b46313ff6103a9602f8c797065dfc8c0ea53c9389fd321d11aec4dfeee1e6
- 0x05fa5be9c2a66f331311f6f4dd73676013e74546ee5507619f9677a0ae066d84
- 0x5e082ba4c95cbcfbd572fafcdfd31d533e69877dbf53c456d3c5b2f727f18ffe
- 0xec2e740df411d32a080c5e65c8b0ca511ad665b213532cee58525a97aebd2893
- 0x60b5befbd81f025904c8a3936b7ba86e3245ad5b37c615d01d42aa3227e3ed2e
- 0xe2d603cd6f987214550319ad4fa39952b6098bc5c1b20893b6b80e8d82a79934
- 0x91f12a2db1e2c1be07cbe4de3981a37a33051a36d3c3eee5a260804add6d1d75
- 0xd56e61af23709ed9f460471e3c08400c0142ee83e1fd9057e46350d12edf9c07
- Day root
- 0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c
- Chained
- 0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6
- Published
- On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1