← The evidence ledger
Evidence row 2202172
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://wikidata-facts.x402tookit.com/person-profile
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 8bbd0b146e982aadf72f1e24120af4518fc9aba33cbefce675c46587d69120a8
- Leaf
- 0x90c1c74b5b58be67273f8213197a374f79209f73ed74264937ea676fffbb6383
What was observed
{
"endpoints": [
[
"x402",
"https://wikidata-facts.x402tookit.com/person-profile"
]
],
"name": "Wikidata Facts",
"owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
"raw": {
"accepts": [
{
"amount": "40000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "40000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"transactionVersions": [
0
]
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
"scheme": "exact"
},
{
"amount": "40000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "40000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42161",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
}
],
"description": "Profile of a notable person with a Wikipedia article: birth, death, occupation, citizenship, identifiers. Never private people.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"person": "Albert Einstein"
},
"type": "http"
},
"output": {
"example": {
"alternatives": [],
"asOf": "2026-10-11T08:43:53.300Z",
"attribution": "Data: Wikidata, CC0 1.0 public domain dedication (https://www.wikidata.org/wiki/Wikidata:Licensing).",
"degraded": false,
"description": "German-born theoretical physicist (1879–1955)",
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"facts": {
"citizenship": {
"property": "P27",
"values": [
{
"id": "Q159631",
"label": "Kingdom of Württemberg"
},
{
"id": "Q223050",
"label": "statelessness"
}
]
},
"dateOfBirth": {
"calendar": "gregorian",
"precision": "day",
"property": "P569",
"value": "1879-03-14"
},
"dateOfDeath": {
"calendar": "gregorian",
"precision": "day",
"property": "P570",
"value": "1955-04-18"
},
"occupations": {
"property": "P106",
"values": [
{
"id": "Q19350898",
"label": "theoretical physicist"
},
{
"id": "Q16389557",
"label": "philosopher of science"
}
]
},
"placeOfBirth": {
"property": "P19",
"values": [
{
"id": "Q3012",
"label": "Ulm"
}
]
},
"placeOfDeath": {
"property": "P20",
"values": [
{
"id": "Q138518",
"label": "Princeton"
}
]
}
},
"identifiers": [
{
"name": "VIAF",
"property": "P214",
"url": "https://viaf.org/viaf/75121530",
"value": "75121530"
},
{
"name": "ISNI",
"property": "P213",
"url": "https://isni.org/isni/000000012281955X",
"value": "000000012281955X"
}
],
"label": "Albert Einstein",
"missing": [],
"notChecked": [
"private individuals: only people with at least one Wikipedia article are profiled",
"attributes this shelf deliberately does not return (family, residence, religion, health, sexuality, ethnicity)",
"…1 more"
],
"reasons": [
"Citizenship and places list every stated value, including past ones.",
"Dates are shown at the precision Wikidata states; no day or month is invented."
],
"resolvedVia": "search",
"source": "Wikidata (CC0)",
"sourceUrl": "https://www.wikidata.org",
"summary": "Albert Einstein (Q937), 1879-03-14 to 1955-04-18: theoretical physicist, philosopher of science, inventor.",
"url": "https://www.wikidata.org/wiki/Q937",
"verdict": "PROFILE_COMPLETE",
"wikidataId": "Q937",
"wikipedia": {
"editions": 236,
"english": {
"title": "Albert Einstein",
"url": "https://en.wikipedia.org/wiki/Albert_Einstein"
}
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"hint": {
"description": "Optional words to disambiguate a name, e.g. 'basketball' for Michael Jordan",
"type": "string"
},
"person": {
"description": "Name or Wikidata Q-id of a person with a Wikipedia article, e.g. Marie Curie",
"type": "string"
}
},
"required": [
"person"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
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"properties": {
"alternatives": {
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"array",
"null"
]
},
"asOf": {
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"null",
"string"
]
},
"attribution": {
"type": [
"null",
"string"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"description": {
"type": [
"null",
"string"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"facts": {
"properties": {
"citizenship": {
"properties": {
"property": {
"type": [
"null",
"string"
]
},
"values": {
"items": {
"properties": {
"id": {
"type": [
"null",
"string"
]
},
"label": {
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"null",
"string"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
}
},
"type": [
"null",
"object"
]
},
"dateOfBirth": {
"properties": {
"calendar": {
"type": [
"null",
"string"
]
},
"precision": {
"type": [
"null",
"string"
]
},
"property": {
"type": [
"null",
"string"
]
},
"value": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"dateOfDeath": {
"properties": {
"calendar": {
"type": [
"null",
"string"
]
},
"precision": {
"type": [
"null",
"string"
]
},
"property": {
"type": [
"null",
"string"
]
},
"value": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"occupations": {
"properties": {
"property": {
"type": [
"null",
"string"
]
},
"values": {
"items": {
"properties": {
"id": {
"type": [
"null",
"string"
]
},
"label": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
}
},
"type": [
"null",
"object"
]
},
"placeOfBirth": {
"properties": {
"property": {
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"null",
"string"
]
},
"values": {
"items": {
"properties": {
"id": {
"type": [
"null",
"string"
]
},
"label": {
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"null",
"string"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
}
},
"type": [
"null",
"object"
]
},
"placeOfDeath": {
"properties": {
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"type": [
"null",
"string"
]
},
"values": {
"items": {
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"id": {
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]
},
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"null",
"string"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
}
},
"type": [
"null",
"object"
]
}
},
"type": [
"null",
"object"
]
},
"identifiers": {
"items": {
"properties": {
"name": {
"type": [
"null",
"string"
]
},
"property": {
"type": [
"null",
"string"
]
},
"url": {
"type": [
"null",
"string"
]
},
"value": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
},
"label": {
"type": [
"null",
"string"
]
},
"missing": {
"type": [
"array",
"null"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"resolvedVia": {
"type": [
"null",
"string"
]
},
"source": {
"type": [
"null",
"string"
]
},
"sourceUrl": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"url": {
"type": [
"null",
"string"
]
},
"verdict": {
"type": [
"null",
"string"
]
},
"wikidataId": {
"type": [
"null",
"string"
]
},
"wikipedia": {
"properties": {
"editions": {
"type": [
"null",
"number"
]
},
"english": {
"properties": {
"title": {
"type": [
"null",
"string"
]
},
"url": {
"type": [
"null",
"string"
]
}
},
"type": [
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"object"
]
}
},
"type": [
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"object"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T22:39:16.612Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-01T22:39:16.444Z"
},
"resource": "https://wikidata-facts.x402tookit.com/person-profile",
"serviceName": "Wikidata Facts",
"tags": [
"person",
"wikidata",
"biography",
"identifiers"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Profile of a notable person with a Wikipedia article: birth, death, occupation, citizenship, identifiers. Never private people."
}What the leaf hashes
{"body":"8bbd0b146e982aadf72f1e24120af4518fc9aba33cbefce675c46587d69120a8","id":2202172,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646813627736,"prev":null,"subject":"x402_bazaar:https://wikidata-facts.x402tookit.com/person-profile","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).
- 0x90c1bf5c1f7e70d08b1fb7bb046f1b8f8d1939f5e2fbcbb4152483d6a6e69ade
- 0x2b8be5a934f67d864ce4fb4dbfb16fc8dcffea6ad91769b23dec5f0327678b23
- 0x977523f7bff67d274b20069ab19d8eec82fb916e4896e0310d4a7f29a317cdb4
- 0xcba354e6316f949953be67be9d2befafe4e132f3f3580000861271e623116a94
- 0x553d10e825d50a1e8845b36f71befa0df0dfde5301e03f91bb839325066dbc33
- 0x0e2eb8451951e66a4d0405e46102b2ff07e92a46fd60af559a5bfa53a1b2a52a
- 0xbe9570be5d2793ae052d9ee9995c96b24dded66dd928a477e7c58cfcab430b38
- 0x5b132291021ea24f11530cc54172e7d74218fb2e9358a97989bb857f4bcbbb0e
- 0x8615b306be4ce0a18d02ee55026a8c66335011ccc64323a3a8346f83ae5b2dcb
- 0x804e2462f6eaab76d9c6943aed064e04a80f73d2e6690bfeddaab9e816482b66
- 0x44a5cad77dd3fedc5999f1587a59e074e73aae4b83894824e2e7767e7eabb7fb
- 0xcc41efda675fd5f31ee9b82e2920f27c5b96c51ec4eacef941b7e4116cbf2ac5
- 0x680e2eb544f0b0d7118b76ffef0a533f49c97860e3c70eaa1d07167760b4968c
- 0x3f15e4f2fd3ab4091e7284edf8bfed23163b8ef6b0c8fdbd458a498a9bb35a32
- 0x5d92631d189bd0292c27a05f85a5ec38ec5f4197dfe4660eb991dc6a511e25a6
- 0x5e23ec5954c11a4530aab8c635a72b12bcfeb6fcb03c6cb1a990cc1743424543
- 0x1805ef693fbdb2c23fcb61616f830408ca89bec1dc5b68ee47a770ffc0b9760a
- 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
- 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af