← The evidence ledger
Evidence row 76444
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/mcp/preflight
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 892b3471438dd1c92181967a48c0f293ed729c6426511cb2a2f31bcd2d593149
- Leaf
- 0x6d7fda79b9dbe0e883fcea4cd5500a687c595842b8c46b09b3226665b8221f0b
What was observed
{
"endpoints": [
[
"x402",
"https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/mcp/preflight"
]
],
"name": "Forest Agent Tools",
"owner_address": "0xb48d918151311f982d542ef5c84cc1cd54cff7a9",
"raw": {
"accepts": [
{
"amount": "4000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xb48D918151311F982d542eF5C84cc1cd54CFf7a9",
"scheme": "exact"
}
],
"description": "Read-only MCP handshake/tools-list preflight; no destructive tool calls. Base mainnet USDC",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"url": "https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/fixtures/mcp"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"capability": "mcp.preflight",
"data": {
"auth_required": false,
"latency_ms": 1,
"negotiated_protocol_version": "2025-03-26",
"protocol_version": "2025-03-26",
"reachable": true,
"tool_count": 0,
"tools": [],
"url": "https://mcp.example.com/mcp"
},
"meta": {
"cache": "miss",
"checked_at": "2026-01-01T00:00:00.000Z",
"duration_ms": 1,
"provider": "mcp-client"
},
"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": {
"protocol_version": {
"description": "Public protocol version value used to scope this lookup.",
"maxLength": 32,
"type": "string"
},
"url": {
"description": "Public HTTP(S) URL to inspect, resolve, or compare.",
"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": "mcp.preflight",
"description": "Public capability value used to scope this lookup."
},
"data": {
"additionalProperties": false,
"description": "Public data value used to scope this lookup.",
"properties": {
"auth_required": {
"description": "Public auth required value used to scope this lookup.",
"type": "boolean"
},
"latency_ms": {
"description": "Public latency ms value used to scope this lookup.",
"type": "integer"
},
"negotiated_protocol_version": {
"description": "Public negotiated protocol version value used to scope this lookup.",
"type": [
"string",
"null"
]
},
"protocol_version": {
"description": "Public protocol version value used to scope this lookup.",
"type": [
"string",
"null"
]
},
"reachable": {
"description": "Public reachable value used to scope this lookup.",
"type": "boolean"
},
"tool_count": {
"description": "Public tool count value used to scope this lookup.",
"type": "integer"
},
"tools": {
"description": "Public tools value used to scope this lookup.",
"type": "array"
},
"url": {
"description": "Public HTTP(S) URL to inspect, resolve, or compare.",
"type": "string"
}
},
"required": [
"url",
"reachable",
"protocol_version",
"negotiated_protocol_version",
"tool_count",
"tools",
"auth_required",
"latency_ms"
],
"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": "2026-10-25T18:17:59.149Z",
"quality": {
"l30DaysTotalCalls": 5,
"l30DaysUniquePayers": 3,
"lastCalledAt": "2026-10-25T18:17:58.761Z"
},
"resource": "https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/mcp/preflight",
"serviceName": "Forest Agent Tools",
"tags": [
"mcp",
"agent"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Read-only MCP handshake/tools-list preflight; no destructive tool calls. Base mainnet USDC"
}What the leaf hashes
{"body":"892b3471438dd1c92181967a48c0f293ed729c6426511cb2a2f31bcd2d593149","id":76444,"kind":"listing","method":"baseline/1","observed_us":1793025492278404,"prev":null,"subject":"x402_bazaar:https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/mcp/preflight","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).
- 0x6d7fd8125beb7f8ca6f372f7d7d290cc090527c0f2a5f98534fbb45de530a475
- 0xa185f855bba32c61cb826416fcf843476ec360d07664373db2564ca68111db44
- 0xba95ccad0f9b4d7ccae451546bb94307534ed9b8a973d94a3061e9ddc8eb1cf2
- 0x82788a96e7e193d8d3217d17a072e7aaa17f30835d0b2c84fd9c8a3adc1a47ba
- 0xb1dea938aeb1a03bf3cb3974dfdef686f7e49953dc3a1f2d67bd1669c5dd9b97
- 0xca37e3e5958ddd887f3ea36cabb96b3f0e7dea7f01a47c6d0e4f72903e20f3c5
- 0x7167f508c4d8c7dd6bb9277ab9a58228b066e90f31f319cccc4c6e30f70c3972
- 0x4873a57a6faa91626104adfce665f79879f8eea2f59fcc39e77d709d4da1bdd1
- 0x187cd02fc25d83259144a0d1b67cedaf83d9da8a9bc14e7630ca58c5be1f6be9
- 0xd436881f2f0c7eba4a0a8b847ff798d53394f793d9cffd7bdf04f6a3d5c2f8be
- 0x82b0a13483194285c0c386d5ad47eb953493b28955a9a8e58da3a2e6e220ed30
- 0x929b3f59cbf01edbae456522161805dd51e098dc3a66d845508de46581bb953c
- 0x9dc4d6f64bc3c323d2c45a28209068cd473b6979bd632a0d694bf94d19bc39df
- 0xfc9b5a81a7a83a1c735a4fe64590beb9db14d2366f463161358af28c3ea9a81d
- 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
- 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae