← The evidence ledger
Evidence row 121884
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://stack.halowerk.com/stack/articles/self-hosted-fonts
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- f9c53f7b15181ccd466e39b69740180ab3be8b1bc806782f5d49fb8c34a40ede
- Leaf
- 0x83b58c3f2b069346a1339e8f21b390a04fd82f6d841bcc026dda1b8640e03f6e
What was observed
{
"endpoints": [
[
"x402",
"https://stack.halowerk.com/stack/articles/self-hosted-fonts"
]
],
"name": "Tech Detect",
"owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
"raw": {
"accepts": [
{
"amount": "5000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"asset": "USDC",
"assetTransferMethod": "eip3009",
"eip712Domain": {
"chainId": 8453,
"name": "USD Coin",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"version": "2"
},
"name": "USD Coin",
"network_name": "Base Mainnet",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"scheme": "exact"
}
],
"description": "Purpose-bound Self-hosted web fonts observation (fonts) using the existing fresh Stack-Monitor. Returns stack_self_hosted_fonts_decision, direct versus inferred status, evidence, optional version difference against a caller-owned baseline and reusable snapshot. Missing fingerprints do not prove absence. No background scheduling, CVE, compatibility or installed-extension inventory. Existing outbound safeguards remain in the injected motor. One public HTTPS root domain, up to150 baseline technolog",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"url": "https://example.com/"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"previous": {
"additionalProperties": false,
"properties": {
"observed_at": {
"maxLength": 40,
"type": "string"
},
"technologies": {
"items": {
"additionalProperties": false,
"properties": {
"category": {
"maxLength": 80,
"type": "string"
},
"name": {
"maxLength": 150,
"type": "string"
},
"version": {
"maxLength": 80,
"type": [
"string",
"null"
]
}
},
"required": [
"name",
"category",
"version"
],
"type": "object"
},
"maxItems": 150,
"type": "array"
}
},
"required": [
"observed_at",
"technologies"
],
"type": "object"
},
"url": {
"maxLength": 2048,
"type": "string"
}
},
"required": [
"url"
],
"title": "Self-hosted web fonts fingerprint monitor input",
"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"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-14T15:34:07.667Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-14T15:34:07.237Z"
},
"resource": "https://stack.halowerk.com/stack/articles/self-hosted-fonts",
"serviceName": "Tech Detect",
"tags": [
"x402",
"halowerk",
"stack_self_hosted_fonts"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Purpose-bound Self-hosted web fonts observation (fonts) using the existing fresh Stack-Monitor. Returns stack_self_hosted_fonts_decision, direct versus inferred status, evidence, optional version difference against a caller-owned baseline and reusable snapshot. Missing fingerprints do not prove absence. No background scheduling, CVE, compatibility or installed-extension inventory. Existing outbound safeguards remain in the injected motor. One public HTTPS root domain, up to150 baseline technolog"
}What the leaf hashes
{"body":"f9c53f7b15181ccd466e39b69740180ab3be8b1bc806782f5d49fb8c34a40ede","id":121884,"kind":"listing","method":"baseline/1","observed_us":1793025620619116,"prev":null,"subject":"x402_bazaar:https://stack.halowerk.com/stack/articles/self-hosted-fonts","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).
- 0x83b5b3765ead0badc18ad209c47734062bf957424638b2bef4223cc47e7d1c8c
- 0x6bf24957a7b079a385d779f8329b3fccfd9ac886f8ee156878941d4eec4dd4d9
- 0xa8eaa69d7c4f494326753ab790d584532fb381752da27111b3dea73ea2fc9c94
- 0xb9351638753a00152f4e578864891d2e1dfc22027ff627d57143b456c04c5444
- 0x48c73ad03496588f824fbeeaa34107d7e9ba85fb7cdb2fc616e80a559e88ac70
- 0x6b19cfccd3859f90419a44a24796a9a3a4d7c4373bd3bb5fba0a02cd48fd6140
- 0x30b2cd59d7b912a0a2e2973d47917538f5b33257d6fd69baf208ffc2762c1051
- 0x0073ebe18951d2a6af3c2d3b5f63981aade91cf005bec6d678c9ca2acf4711bf
- 0x084ded26d514a29921994ce7190e842f169857c96b5278a12360e5d0e47c3360
- 0xee19b1ec06299bfa7d1996bbbc62f4c302304457b0e425812bc2df6d4ce7c782
- 0x6e037384448a2bbd201b4e7e9e6e447d7254d0d2926b3fd2e81fdf99eae4a06b
- 0xfdaa032291ded0df2cf35d6e9dc6e7a2643d0fe027dd3ab321971f1f7bf69147
- 0x91c2ae93ec20c7fed5088112fe3941ca622dfb3f8f1022c4844726c361244bd4
- 0x0eff463856b0992d53ab7d8c0b97c71541413358bdd445710c1e4b6aeb4d8f78
- 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
- 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
- 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae