← The evidence ledger
Evidence row 49452
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://agentsvc.io/api/v1/proxy/accessibility-check
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 53f2d6a1b1ecd25b924a14cb40c6e1751db50da1f79b18a7aa975aa5baba9ff2
- Leaf
- 0x60f22f07187c6ab4e2b1fc0d4bbb75b17792628bf6ba6b15564c15b55ea41cc8
What was observed
{
"endpoints": [
[
"x402",
"https://agentsvc.io/api/v1/proxy/accessibility-check"
]
],
"name": "Accessibility Checker WCAG BFSG",
"owner_address": "0x622efa6ceb83a5b6edbc931332f4db68b7f74f27",
"raw": {
"accepts": [
{
"amount": "15000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27",
"scheme": "exact"
},
{
"amount": "15000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "5JzPS5qpEwUM1vTC9GG7uqvwJdHzbEwfoPHf2Ki977tg",
"scheme": "exact"
},
{
"amount": "15000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27",
"scheme": "exact"
},
{
"amount": "15000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42161",
"payTo": "0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27",
"scheme": "exact"
}
],
"description": "Automated web accessibility audit of a page in a real browser with axe-core: every WCAG 2.2 level A and AA rule that can be tested automatically (missing alt text, unlabeled buttons and form fields, color contrast, keyboard traps, ARIA errors, missing page language, touch target size).",
"extensions": {
"bazaar": {
"category": "web",
"info": {
"input": {
"body": {
"url": "https://www.openstreetmap.org"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"data": {
"accessibility_statement": {
"found": false,
"text": null,
"url": null
},
"affected_elements": {
"critical": 1,
"minor": 0,
"moderate": 0,
"serious": 1
},
"checked_at": "2026-10-10T06:57:23.496Z",
"engine": "axe-core 4.14.0 (MPL-2.0)",
"grade": "B",
"key_facts": [
"2 kinds of WCAG A/AA violation on https://www.openstreetmap.org/#map=6/51.33/..."
],
"lang": "de",
"needs_manual_review": 3,
"note": "Automated tests find roughly a third of accessibility barriers. A clean resul...",
"score": 77,
"standard": "WCAG 2.2 level A and AA rules that can be tested automatically (axe-core). EN...",
"url": "https://www.openstreetmap.org/#map=6/51.33/10.45",
"viewport": "desktop 1280x800",
"violation_types": 2,
"violations": [
{
"elements": 1,
"examples": [
{
"fix": "Fix any of the following:\n Element does not have inner text that is visible ...",
"html": "<button class=\"btn btn-outline-primary dropdown-toggle dropdown-toggle-split ...",
"target": ".dropdown-toggle-split"
}
],
"how_to_fix": "https://dequeuniversity.com/rules/axe/4.14/button-name?application=axeAPI",
"impact": "critical",
"problem": "Buttons must have discernible text",
"rule": "button-name",
"wcag": [
"wcag2a"
]
}
]
},
"success": true
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"mobile": {
"default": false,
"description": "Audit at phone width (390x844) instead of desktop (1280x800)",
"type": "boolean"
},
"url": {
"description": "Page to audit, e.g. https://example.com",
"type": "string"
}
},
"required": [
"url"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"data": {
"properties": {
"accessibility_statement": {
"properties": {
"found": {
"type": "boolean"
},
"text": {},
"url": {}
},
"type": "object"
},
"affected_elements": {
"properties": {
"critical": {
"type": "integer"
},
"minor": {
"type": "integer"
},
"moderate": {
"type": "integer"
},
"serious": {
"type": "integer"
}
},
"type": "object"
},
"checked_at": {
"type": "string"
},
"engine": {
"type": "string"
},
"grade": {
"type": "string"
},
"key_facts": {
"items": {
"type": "string"
},
"type": "array"
},
"lang": {
"type": "string"
},
"needs_manual_review": {
"type": "integer"
},
"note": {
"type": "string"
},
"score": {
"type": "integer"
},
"standard": {
"type": "string"
},
"url": {
"type": "string"
},
"viewport": {
"type": "string"
},
"violation_types": {
"type": "integer"
},
"violations": {
"items": {
"properties": {
"elements": {
"type": "integer"
},
"examples": {
"items": {
"properties": {
"fix": {
"type": "string"
},
"html": {
"type": "string"
},
"target": {
"type": "string"
}
},
"type": "object"
},
"type": "array"
},
"how_to_fix": {
"type": "string"
},
"impact": {
"type": "string"
},
"problem": {
"type": "string"
},
"rule": {
"type": "string"
},
"wcag": {
"items": {
"type": "string"
},
"type": "array"
}
},
"type": "object"
},
"type": "array"
}
},
"required": [
"url",
"grade",
"violations",
"key_facts"
],
"type": "object"
},
"success": {
"type": "boolean"
}
},
"required": [
"success",
"data"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
},
"tags": [
"accessibility-check",
"wcag-audit",
"bfsg",
"european-accessibility-act",
"a11y",
"accessibility",
"wcag",
"audit"
]
},
"builder-code": {
"info": {
"a": "bc_q6wi3opd"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791462963/bazaar-icons/243ff0b79dbee242.png",
"lastUpdated": "2026-10-26T04:12:09.752Z",
"quality": {
"l30DaysTotalCalls": 5,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-26T04:12:09.442Z"
},
"resource": "https://agentsvc.io/api/v1/proxy/accessibility-check",
"serviceName": "Accessibility Checker WCAG BFSG",
"tags": [
"accessibility-check",
"wcag-audit",
"bfsg",
"european-accessibility-act",
"a11y"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Automated web accessibility audit of a page in a real browser with axe-core: every WCAG 2.2 level A and AA rule that can be tested automatically (missing alt text, unlabeled buttons and form fields, color contrast, keyboard traps, ARIA errors, missing page language, touch target size)."
}What the leaf hashes
{"body":"53f2d6a1b1ecd25b924a14cb40c6e1751db50da1f79b18a7aa975aa5baba9ff2","id":49452,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025413665133,"prev":null,"subject":"x402_bazaar:https://agentsvc.io/api/v1/proxy/accessibility-check","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).
- 0x60f2a4f1809b2e0bc70370b8d19de7172bf43a6a0845535cc1eab9c42453976b
- 0x37206df8cb38d5ec927ebe786579c3cbd53fa4d31b8a3c56fb8d8adb1843b85e
- 0x11334b5981ba93d14869642acdce9eef00bb3e12ffcb97c71b76f23fdf355ede
- 0xe3cdbe2674966789fbd572e1d472db47a2941ea0fdaf8f479d763c1c7962ecca
- 0x951f00d2f6d4b5d8c06b58f3a9f7c71e781c0c1b20c86cb4d552782ecf519c79
- 0x77499b10fab0fd6cceb43da1a88ad94a11bfef1def72b69cbad8b7c3a0e0df55
- 0x6c43ba65697a9675007eb7fd3fcaa63b545df5b6623d5044e080d1370b57c749
- 0x339cfaa6efa0fc7efeafeb890741e094e081d1179ea5cfd84bb15551ade768c6
- 0x1b6b041c4f63a13850a0ef9b8a0cc3d69f81b0bff6c0fee5059731c160e5c529
- 0xe260b2e40b95bbf4bea407155c3f0fd2821a2b48a48010e119c9c3a25f20adb5
- 0x52877ea072e10a1d3a921f7b54362005ad7a9baf5c99f31ec73a534bfea8930d
- 0xf4e3bedc99674db9d8ab4bc7655992ec76f822b327e6c89599b0baa3756fbd19
- 0x89fcaf55e37dd777228f271b79ea895534a66ec0d184363c2a6eb1b4d23c9ef1
- 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
- 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
- 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae