← The evidence ledger
Evidence row 126754
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://x402.professorsausages.com/news/headlines
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- b1c13e49a60534230140518b9966117443c5b33988343227e1e014cf2b460150
- Leaf
- 0x6bb26c0f5bbe5423db4f4e6ab95bb8acdb30e1518aba57dc5bd6f30822957cac
What was observed
{
"endpoints": [
[
"x402",
"https://x402.professorsausages.com/news/headlines"
]
],
"name": "Multi-Source News",
"owner_address": "0x54ebfcf3870439b9db62381848c5dabc05c70d5b",
"raw": {
"accepts": [
{
"amount": "20000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0x54ebFCF3870439B9db62381848c5DabC05c70d5B",
"scheme": "exact"
}
],
"description": "Newest headlines from a deduped, tiered 972-feed direct portfolio (primary sources + wires/majors + trade press + Hacker News + gated GDELT), newest first, up to 100 per call — filter by category, source, and language; every article carries tier, categories, summary/author/image when present, and a provenance-labelled tone",
"extensions": {
"bazaar": {
"category": "news",
"info": {
"input": {
"method": "GET",
"queryParams": {
"category": "Restrict to one topical category.",
"lang": "ISO-639-1 language code.",
"limit": "How many articles to return.",
"since": "Only articles ingested (seen_at) after this point: an ISO date-time, or the next_cursor from your previous answer.",
"source": "Restrict to one ingestion source. `push:<channel>` is a relayed pointer — the record is the linked publisher's article and `via` names the account that relayed it. gnews is retired (archived articles only)."
},
"type": "http"
},
"output": {
"properties": {
"articles": {
"items": {
"properties": {
"also": {
"items": {
"properties": {
"domain": {
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"domain",
"url"
],
"type": "object"
},
"maxItems": 3,
"type": "array"
},
"author": {
"type": [
"string",
"null"
]
},
"categories": {
"items": {
"type": "string"
},
"type": "array"
},
"cluster": {
"type": [
"string",
"null"
]
},
"cluster_id": {
"type": "string"
},
"cluster_size": {
"minimum": 1,
"type": "integer"
},
"country": {
"type": [
"string",
"null"
]
},
"domain": {
"type": "string"
},
"feed": {
"type": "string"
},
"id": {
"type": "string"
},
"image": {
"type": [
"string",
"null"
]
},
"lang": {
"type": [
"string",
"null"
]
},
"published": {
"type": "string"
},
"seen_at": {
"type": "string"
},
"snippet": {
"type": [
"string",
"null"
]
},
"source": {
"enum": [
"gdelt",
"hn",
"rss",
"gnews",
"sitemap"
],
"type": "string"
},
"source_score": {
"maximum": 1,
"minimum": 0,
"type": "number"
},
"summary": {
"type": [
"string",
"null"
]
},
"tier": {
"enum": [
"official",
"major",
"trade",
"social",
"enrichment",
null
],
"type": [
"string",
"null"
]
},
"tone": {
"type": [
"number",
"null"
]
},
"tone_confidence": {
"enum": [
"high",
"medium",
"low",
null
],
"type": [
"string",
"null"
]
},
"tone_method": {
"enum": [
"gdelt",
"lexicon",
null
],
"type": [
"string",
"null"
]
},
"url": {
"type": "string"
},
"via": {
"type": [
"string",
"null"
]
},
"word_count": {
"type": [
"integer",
"null"
]
}
},
"required": [
"id",
"title",
"url",
"domain",
"source",
"feed",
"published",
"categories",
"seen_at"
],
"type": "object"
},
"type": "array"
},
"count": {
"type": "integer"
},
"freshness": {
"properties": {
"as_of": {
"type": "string"
},
"coverage": {
"properties": {
"articles": {
"type": "integer"
},
"hours": {
"type": "number"
},
"newest_published": {
"type": [
"string",
"null"
]
},
"oldest_published": {
"type": [
"string",
"null"
]
},
"thin": {
"type": "boolean"
},
"why": {
"type": [
"string",
"null"
]
}
},
"required": [
"oldest_published",
"newest_published",
"hours",
"articles"
],
"type": "object"
},
"source_count": {
"type": "integer"
},
"window_hours": {
"type": "integer"
}
},
"required": [
"as_of",
"window_hours",
"source_count",
"coverage"
],
"type": "object"
},
"new_count": {
"type": "integer"
},
"next_cursor": {
"type": [
"string",
"null"
]
},
"poll": {
"properties": {
"next_cursor": {
"type": [
"string",
"null"
]
},
"note": {
"type": "string"
},
"suggested_interval_seconds": {
"type": "integer"
},
"updated_at": {
"type": "string"
}
},
"required": [
"next_cursor",
"suggested_interval_seconds",
"updated_at"
],
"type": "object"
},
"polled_at": {
"type": "string"
},
"since": {
"type": [
"string",
"null"
]
},
"total": {
"type": "integer"
},
"updated_at": {
"type": "string"
},
"window_hours": {
"type": "integer"
}
},
"required": [
"updated_at",
"window_hours",
"total",
"count",
"articles",
"freshness",
"new_count",
"next_cursor",
"polled_at",
"poll"
],
"type": "object"
}
},
"routeTemplate": "https://x402.professorsausages.com/news/headlines",
"schema": {
"properties": {
"input": {
"type": "object"
},
"output": {
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"help": {
"docs": "https://x402.professorsausages.com/news",
"example": "https://x402.professorsausages.com/news/headlines",
"openapi": "https://x402.professorsausages.com/news/openapi.json",
"sample": "https://x402.professorsausages.com/news/sample"
}
},
"lastUpdated": "2026-10-05T07:02:32.142Z",
"quality": {
"l30DaysTotalCalls": 5,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-05T07:02:40.474Z"
},
"resource": "https://x402.professorsausages.com/news/headlines",
"serviceName": "Multi-Source News",
"tags": [
"news",
"headlines",
"search",
"sentiment",
"gdelt"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Newest headlines from a deduped, tiered 972-feed direct portfolio (primary sources + wires/majors + trade press + Hacker News + gated GDELT), newest first, up to 100 per call — filter by category, source, and language; every article carries tier, categories, summary/author/image when present, and a provenance-labelled tone"
}What the leaf hashes
{"body":"b1c13e49a60534230140518b9966117443c5b33988343227e1e014cf2b460150","id":126754,"kind":"listing","method":"baseline/1","observed_us":1793025636010269,"prev":null,"subject":"x402_bazaar:https://x402.professorsausages.com/news/headlines","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).
- 0x6bb274ac9efdab168b84a5999710c6b27e24c5308abc1ea4baccf7e5414b71a1
- 0x970d02ffae7b9d45a9bac29bddaaa3e0e2607be8e152942361bd90495f97d9b1
- 0xad06d1ef84557bf0aadf3cdfcc014a61b7df409bf18a0e733e4bc028e48e419b
- 0x0e58696e33f8c6f4fe68187d2dcf2bcd262c7b9a2ddf6445821ef8f7802612e9
- 0xe4e8f0ff66a5a1b2d9f3a522efae7a533d62e383d873a52b08335439d7a6dada
- 0xace6539b660b8aa6ad8aba92bac71ea4f625bfa6118228115eaaf77f306f1827
- 0x907dbff72fdd3ee6aa9fc942509ef746b548912bade1b47aa418a46e44ac7843
- 0x4b7a55b1ad41f8a946e222f9f8ecdc8b938a83f07010c13c3d30ec4ba59ac60a
- 0xfd3006f7ad1503c4eaf3210fd3201bbdd4794b562284fb368f0e4f8dc3760d6f
- 0x6a9d75996732347a0b42cd7298726bdcf5ff4155144ec98135ea4de4fe5b6666
- 0xdfaea4285192101e7ab6e8e71853c71cef08df31a416be7a9f92f34cf897e13e
- 0x2a304c51963b65e3ca818b638b2e9a98297b7d6b6a3e14ecca2501aa13b9f556
- 0x9dc4d6f64bc3c323d2c45a28209068cd473b6979bd632a0d694bf94d19bc39df
- 0xfc9b5a81a7a83a1c735a4fe64590beb9db14d2366f463161358af28c3ea9a81d
- 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
- 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae