← The evidence ledger
Evidence row 76888
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://jsonrecon.com/extract/verified
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 739f20c6e6f4c711a26f040f60201a14bda5a2753895a1178a34dddfd8d60254
- Leaf
- 0x504d0b68bf88c0a49263b25d3fe0c834cfd123744c361a17e83b6780ed7d64da
What was observed
{
"endpoints": [
[
"x402",
"https://jsonrecon.com/extract/verified"
]
],
"name": "jsonrecon.com/extract/verified",
"owner_address": "0xc1726e09aea4b9b967353b7b56890955e9e5bc2c",
"raw": {
"accepts": [
{
"amount": "20000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xC1726e09aEa4b9b967353B7b56890955E9E5Bc2c",
"scheme": "exact"
}
],
"description": "Verify Product data against multiple representations on the requested page. Returns field-level corroboration, bounded evidence, contradictions, observation time, and a content hash. Outcomes: verified, conflicted, or insufficient_evidence. Non-product pages return 422 and do not settle. $0.02 USDC per successful result on Base.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"url": "https://www.seed-sack.com/products/the-classic-single-seed-sack"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"cached": false,
"data": {
"@context": "https://schema.org",
"@type": "Product",
"brand": {
"@type": "Brand",
"name": "Seed Sack"
},
"name": "The Classic Seed Sack",
"offers": {
"@type": "Offer",
"availability": "https://schema.org/InStock",
"price": 17.99,
"priceCurrency": "USD"
},
"sku": "11413-1983"
},
"extraction_ms": 1400,
"schema_type": "Product",
"success": true,
"verdict": "verified",
"verification": {
"ambiguous_offer": false,
"content_sha256": "sha256:3b6f1d7a74b32ea172e1ac97db4e1838f36a80f31c873539cc02964211432f7a",
"contradictions": [],
"coverage": {
"conflicted": 0,
"corroborated": 4,
"single_source": 0
},
"efficiency": {
"estimate_method": "characters_divided_by_4",
"estimated_page_tokens": 12000,
"estimated_response_tokens": 600,
"estimated_tokens_avoided": 11400,
"page_characters": 48000,
"response_characters": 2400
},
"fields": {
"availability": {
"sources": [
{
"channel": "json_ld",
"excerpt": "\"availability\": \"https://schema.org/InStock\"",
"value": "https://schema.org/InStock"
},
{
"channel": "visible_text",
"excerpt": "In stock",
"value": "https://schema.org/InStock"
}
],
"status": "corroborated",
"value": "https://schema.org/InStock"
},
"name": {
"sources": [
{
"channel": "json_ld",
"excerpt": "\"name\": \"The Classic Seed Sack\"",
"value": "The Classic Seed Sack"
},
{
"channel": "visible_text",
"excerpt": "The Classic Seed Sack",
"value": "The Classic Seed Sack"
}
],
"status": "corroborated",
"value": "The Classic Seed Sack"
},
"price": {
"sources": [
{
"channel": "json_ld",
"excerpt": "\"price\": \"17.99\"",
"value": "17.99"
},
{
"channel": "visible_text",
"excerpt": "$17.99",
"value": 17.99
}
],
"status": "corroborated",
"value": 17.99
},
"sku": {
"sources": [
{
"channel": "json_ld",
"excerpt": "\"sku\": \"11413-1983\"",
"value": "11413-1983"
},
{
"channel": "visible_text",
"excerpt": "SKU: 11413-1983",
"value": "11413-1983"
}
],
"status": "corroborated",
"value": "11413-1983"
}
},
"observed_at": "2026-07-20T12:00:00.000Z",
"scope": "page_consistency"
},
"verification_version": "product/v1"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"url": {
"description": "The full URL of a public Product page to verify.",
"type": "string"
}
},
"required": [
"url"
]
},
"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": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"description": "A successful Product verification response with a page-consistency verdict, field evidence, contradictions, coverage, observation time, and content hash.",
"properties": {
"cached": {
"type": "boolean"
},
"data": {
"additionalProperties": true,
"description": "The sanitized Product entity whose fields were assessed.",
"properties": {
"@context": {},
"@type": {
"const": "Product",
"type": "string"
},
"offers": {
"description": "One offer or an array of offers. Price is optional; clients must accept numeric prices as well as retained text.",
"oneOf": [
{
"additionalProperties": true,
"properties": {
"price": {
"description": "A Product price. Parseable offer prices are returned as JSON numbers; retained source text can be a string. Do not infer a string-only type from source markup.",
"oneOf": [
{
"type": "number"
},
{
"type": "string"
}
]
}
},
"type": "object"
},
{
"items": {
"additionalProperties": true,
"properties": {
"price": {
"description": "A Product price. Parseable offer prices are returned as JSON numbers; retained source text can be a string. Do not infer a string-only type from source markup.",
"oneOf": [
{
"type": "number"
},
{
"type": "string"
}
]
}
},
"type": "object"
},
"type": "array"
}
]
}
},
"required": [
"@type"
],
"type": "object"
},
"extraction_ms": {
"minimum": 0,
"type": "number"
},
"schema_type": {
"const": "Product",
"type": "string"
},
"success": {
"const": true,
"type": "boolean"
},
"verdict": {
"enum": [
"verified",
"conflicted",
"insufficient_evidence"
],
"type": "string"
},
"verification": {
"additionalProperties": false,
"properties": {
"ambiguous_offer": {
"type": "boolean"
},
"content_sha256": {
"pattern": "^sha256:[a-f0-9]{64}$",
"type": "string"
},
"contradictions": {
"items": {
"additionalProperties": false,
"properties": {
"field": {
"type": "string"
},
"severity": {
"const": "critical",
"type": "string"
},
"values": {
"items": {
"additionalProperties": false,
"properties": {
"channel": {
"enum": [
"json_ld",
"metadata",
"microdata",
"visible_text"
],
"type": "string"
},
"value": {
"description": "A bounded value observed in one representation of the page. Source values retain their representation: price evidence may mix strings and numbers."
}
},
"required": [
"channel",
"value"
],
"type": "object"
},
"type": "array"
}
},
"required": [
"field",
"severity",
"values"
],
"type": "object"
},
"type": "array"
},
"coverage": {
"additionalProperties": false,
"properties": {
"conflicted": {
"minimum": 0,
"type": "integer"
},
"corroborated": {
"minimum": 0,
"type": "integer"
},
"single_source": {
"minimum": 0,
"type": "integer"
}
},
"required": [
"corroborated",
"conflicted",
"single_source"
],
"type": "object"
},
"efficiency": {
"additionalProperties": false,
"properties": {
"estimate_method": {
"const": "characters_divided_by_4",
"type": "string"
},
"estimated_page_tokens": {
"minimum": 0,
"type": "integer"
},
"estimated_response_tokens": {
"minimum": 0,
"type": "integer"
},
"estimated_tokens_avoided": {
"minimum": 0,
"type": "integer"
},
"page_characters": {
"minimum": 0,
"type": "integer"
},
"response_characters": {
"minimum": 0,
"type": "integer"
}
},
"required": [
"estimate_method",
"page_characters",
"response_characters",
"estimated_page_tokens",
"estimated_response_tokens",
"estimated_tokens_avoided"
],
"type": "object"
},
"fields": {
"additionalProperties": {
"additionalProperties": false,
"properties": {
"sources": {
"items": {
"additionalProperties": false,
"properties": {
"channel": {
"enum": [
"json_ld",
"metadata",
"microdata",
"visible_text"
],
"type": "string"
},
"excerpt": {
"maxLength": 160,
"type": "string"
},
"value": {
"description": "A bounded value observed in one representation of the page. Source values retain their representation: price evidence may mix strings and numbers."
}
},
"required": [
"channel",
"value"
],
"type": "object"
},
"type": "array"
},
"status": {
"enum": [
"corroborated",
"conflicted",
"single_source"
],
"type": "string"
},
"value": {
"description": "A bounded value observed in one representation of the page. Source values retain their representation: price evidence may mix strings and numbers."
}
},
"required": [
"value",
"status",
"sources"
],
"type": "object"
},
"properties": {
"price": {
"additionalProperties": false,
"properties": {
"sources": {
"items": {
"additionalProperties": false,
"properties": {
"channel": {
"enum": [
"json_ld",
"metadata",
"microdata",
"visible_text"
],
"type": "string"
},
"excerpt": {
"maxLength": 160,
"type": "string"
},
"value": {
"description": "Observed price in this source representation. JSON-LD, metadata, and microdata may retain strings; visible-text evidence may contain the normalized number.",
"oneOf": [
{
"type": "number"
},
{
"type": "string"
}
]
}
},
"required": [
"channel",
"value"
],
"type": "object"
},
"type": "array"
},
"status": {
"enum": [
"corroborated",
"conflicted",
"single_source"
],
"type": "string"
},
"value": {
"description": "A Product price. Parseable offer prices are returned as JSON numbers; retained source text can be a string. Do not infer a string-only type from source markup.",
"oneOf": [
{
"type": "number"
},
{
"type": "string"
}
]
}
},
"required": [
"value",
"status",
"sources"
],
"type": "object"
}
},
"type": "object"
},
"observed_at": {
"type": "string"
},
"scope": {
"const": "page_consistency",
"type": "string"
}
},
"required": [
"scope",
"observed_at",
"content_sha256",
"fields",
"contradictions",
"coverage",
"ambiguous_offer",
"efficiency"
],
"type": "object"
},
"verification_version": {
"pattern": "^product\\/v[0-9]+$",
"type": "string"
}
},
"required": [
"success",
"data",
"schema_type",
"verification_version",
"verdict",
"verification",
"cached",
"extraction_ms"
],
"title": "JSON Recon Verified Product result",
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-22T21:31:33.164Z",
"quality": {
"l30DaysTotalCalls": 12,
"l30DaysUniquePayers": 3,
"lastCalledAt": "2026-10-22T21:31:32.938Z"
},
"resource": "https://jsonrecon.com/extract/verified",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Verify Product data against multiple representations on the requested page. Returns field-level corroboration, bounded evidence, contradictions, observation time, and a content hash. Outcomes: verified, conflicted, or insufficient_evidence. Non-product pages return 422 and do not settle. $0.02 USDC per successful result on Base."
}What the leaf hashes
{"body":"739f20c6e6f4c711a26f040f60201a14bda5a2753895a1178a34dddfd8d60254","id":76888,"kind":"listing","method":"baseline/1","observed_us":1793025493083195,"prev":null,"subject":"x402_bazaar:https://jsonrecon.com/extract/verified","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).
- 0x504d22d689dc6e118d8f291a46495e72a2790f9e3f7c94c8fe6f8fdae7f82c90
- 0x5abcdf5c7f94fb34ff0c2161aa7c6d0c04b0db672bf05b483ceb0889870a5f68
- 0xb37fe62c5b80fcd6a8b45b069cf0ca8e74adc7092b8aec50498766e68b235711
- 0xcd9df214fb732b58a5204d2d0c817cf6ffea07b58191e11c98b1bae5cf49fd38
- 0xd442af20ae9ade8e2bd4a88a0f317068bc3db70a0516d4becda16f2ab6923be1
- 0x0128850e0803fc5219abe36469f934dd6b3a2b13dde4459744cebb68962101fa
- 0x1c3cc54f4317f66762917949c70abe8ae3b4054256444b7eed3a5e723c176bcc
- 0xff0f356fbdbff7a567ec6cdcc734353f19592e58b69f1edebc5ad71c909c46d4
- 0x1ce8c17427e7cda68d27094400df00e10add7924ee994e68f479021a800ed65b
- 0x3ffc29bda4b9db0bbd22701201836cd30915524996019abd0333ddffdac24a1e
- 0xe281245a49847bca87f4c96f8da0284eeef688f3f597a62adb2d9089f4385e55
- 0xecaf47ba75097c34f2d3c4d62539dace0db8b484bf08941a9259e2d1e8ccea77
- 0xf7d2cf278e5d2768b8bdb70730c378877cf7165d8efcbec8bcd3282fdc50d177
- 0x0733993143f0230e79482cef2c38e95d98f9eafbe64a43cdc74a4545938a4167
- 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
- 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae