← The evidence ledger
Evidence row 118581
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://polymarket.use.x402atlas.com/events
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 89d6bbbddf074ffe116338173bea5d14b56d3f2b2cdc53aaa73654db067efa8a
- Leaf
- 0x2a89936691c1244ece228e1f34cc246ca02ad1022729f8f5aaef0a6d1192245c
What was observed
{
"endpoints": [
[
"x402",
"https://polymarket.use.x402atlas.com/events"
]
],
"name": "Polymarket Events",
"owner_address": "0x8c128f1ee62bb5e47867cfbae2ad89be325df1b2",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"merchant": "x402Atlas",
"name": "USD Coin",
"tier": "standard",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"merchant": "x402Atlas",
"name": "USD Coin",
"tier": "standard",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"merchant": "x402Atlas",
"name": "USD Coin",
"tier": "standard",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42161",
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"merchant": "x402Atlas",
"tier": "standard"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
"scheme": "exact"
}
],
"description": "Prediction market events by topic — page through open or closed Polymarket events under one tag such as politics, crypto, economy, geopolitics or ai, each with status, dates, volume, liquidity and markets with current YES prices. Use to survey what a prediction market is pricing on a subject.",
"extensions": {
"bazaar": {
"category": "finance",
"info": {
"input": {
"method": "GET",
"queryParams": {
"limit": 10,
"tag": "geopolitics"
},
"type": "http"
},
"output": {
"example": {
"as_of": "2026-10-20T14:23:40Z",
"closed": false,
"count": 3,
"events": [
{
"end_date": "2027-01-01T04:59:00Z",
"liquidity": 14872.94,
"market_count": 3,
"markets": [
{
"group_title": "June 30",
"question": "China x India military clash by June 30?",
"slug": "china-x-india-military-clash-by-june-30",
"status": "resolved",
"yes_price": 0
},
{
"group_title": "December 31",
"question": "China x India military clash by December 31?",
"slug": "china-x-india-military-clash-by-december-31",
"status": "resolved",
"yes_price": 0
},
{
"group_title": "December 31, 2026",
"question": "China x India military clash by December 31, 2026?",
"slug": "china-x-india-military-clash-by-december-31-2026",
"status": "open",
"yes_price": 0.06
}
],
"open_interest": 23489.88,
"restricted": true,
"slug": "china-x-india-military-clash-by-december-31",
"start_date": "2025-01-30T21:29:15.866418Z",
"status": "open",
"tags": [
"geopolitics",
"politics",
"china",
"india",
"world"
],
"title": "China x India military clash by...?",
"volume": 333200.36,
"volume_24h": 0
},
{
"end_date": "2027-01-01T04:59:00Z",
"liquidity": 30332.17,
"market_count": 3,
"markets": [
{
"group_title": "December 31, 2025",
"question": "NATO/EU troops fighting in Ukraine in 2025?",
"slug": "natoeu-troops-fighting-in-ukraine-in-2025",
"status": "resolved",
"yes_price": 0
},
{
"group_title": "December 31, 2026",
"question": "NATO/EU troops fighting in Ukraine by December 31, 2026?",
"slug": "natoeu-troops-fighting-in-ukraine-by-december-31-2026",
"status": "open",
"yes_price": 0.0325
},
{
"group_title": "June 30, 2026",
"question": "NATO/EU troops fighting in Ukraine in June 30, 2026?",
"slug": "natoeu-troops-fighting-in-ukraine-in-june-30-2026",
"status": "resolved",
"yes_price": 0
}
],
"open_interest": 4008.39,
"restricted": true,
"slug": "natoeu-troops-fighting-in-ukraine-in-2025",
"start_date": "2025-01-31T23:41:04.062553Z",
"status": "open",
"tags": [
"ukraine",
"politics",
"geopolitics",
"russia",
"nato",
"eu",
"world",
"trump-zelenskyy",
"security-guarantee"
],
"title": "NATO/EU troops fighting in Ukraine by...?",
"volume": 487785.43,
"volume_24h": 2042.63
},
{
"end_date": "2027-01-01T04:59:00Z",
"liquidity": 36369.66,
"market_count": 3,
"markets": [
{
"group_title": "December 31, 2025",
"question": "Ukraine recognizes Russian sovereignty over its territory by December 31, 2025?",
"slug": "ukraine-recognizes-russian-sovereignty-over-ukrainian-territory-in-2025",
"status": "resolved",
"yes_price": 0
},
{
"group_title": "June 30, 2026",
"question": "Ukraine recognizes Russian sovereignty over its territory by June 30, 2026?",
"slug": "ukraine-recognizes-russian-sovereignty-over-its-territory-by-june-30-2026",
"status": "resolved",
"yes_price": 0
},
{
"group_title": "December 31, 2026",
"question": "Ukraine recognizes Russian sovereignty over its territory by December 31, 2026?",
"slug": "ukraine-recognizes-russian-sovereignty-over-its-territory-by-december-31-2026",
"status": "open",
"yes_price": 0.014
}
],
"open_interest": 28224.34,
"restricted": true,
"slug": "ukraine-recognizes-russian-sovereignty-over-ukrainian-territory-in-2025",
"start_date": "2025-02-06T23:19:09.390407Z",
"status": "open",
"tags": [
"politics",
"geopolitics",
"foreign-policy",
"ukraine",
"trump-presidency",
"trump",
"putin",
"zelensky",
"world",
"trump-putin"
],
"title": "Ukraine recognizes Russian sovereignty over its territory by...?",
"volume": 2656688.16,
"volume_24h": 0
}
],
"next_cursor": "v9zNJPycgDLfvSTk0WLOPMFwxhF5b1_5kYI4rQJYObJ7InYiOjEsImsiOiJldmVudHMiLCJvaCI6IjRmNTNjZGExOGMyYmFhMGMwMzU0YmI1ZjlhM2VjYmU1ZWQxMmFiNGQ4ZTExYmE4NzNjMmYxMTE2MTIwMmI5NDUiLCJrZXlzIjpbeyJ0Ijoic3RyaW5nIiwidiI6IjI1ODI3In1dfQ",
"price_basis": "market price in USDC per share; not a calibrated probability",
"source": [
"gamma-api.polymarket.com"
],
"tag": "geopolitics"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"closed": {
"default": false,
"description": "true lists closed and resolved events",
"type": "boolean"
},
"cursor": {
"description": "next_cursor of the previous page",
"maxLength": 512,
"type": "string"
},
"limit": {
"default": 20,
"maximum": 50,
"minimum": 1,
"type": "integer"
},
"tag": {
"description": "Tag slug, e.g. politics, crypto, economy; omitted runs the example",
"pattern": "^[a-z0-9][a-z0-9-]{0,127}$",
"type": "string"
}
},
"required": [
"tag"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"as_of": {
"description": "Retrieval time, UTC",
"format": "date-time",
"type": "string"
},
"closed": {
"type": "boolean"
},
"count": {
"type": "integer"
},
"events": {
"items": {
"additionalProperties": false,
"properties": {
"end_date": {
"description": "RFC3339 scheduled end",
"type": "string"
},
"liquidity": {
"description": "USDC",
"type": [
"number",
"null"
]
},
"market_count": {
"description": "Markets in the event, including any not listed",
"type": "integer"
},
"markets": {
"description": "At most 10; /event/{slug} lists all",
"items": {
"additionalProperties": false,
"properties": {
"group_title": {
"description": "Label inside a multi-outcome event; absent on standalone markets",
"type": "string"
},
"question": {
"type": "string"
},
"slug": {
"description": "Pass to /market, /history or /book",
"type": "string"
},
"status": {
"enum": [
"upcoming",
"open",
"paused",
"closed",
"resolved",
"archived"
],
"type": "string"
},
"yes_price": {
"description": "USDC per share, 0-1",
"type": [
"number",
"null"
]
}
},
"required": [
"slug",
"question",
"yes_price",
"status"
],
"type": "object"
},
"type": "array"
},
"open_interest": {
"description": "USDC",
"type": [
"number",
"null"
]
},
"restricted": {
"description": "true when trading is geo-restricted; reading is unaffected",
"type": "boolean"
},
"slug": {
"type": "string"
},
"start_date": {
"description": "RFC3339",
"type": "string"
},
"status": {
"enum": [
"upcoming",
"open",
"closed",
"archived"
],
"type": "string"
},
"tags": {
"description": "Tag slugs; pass one to /events?tag=",
"items": {
"type": "string"
},
"type": "array"
},
"title": {
"type": "string"
},
"volume": {
"description": "Lifetime USDC volume across markets",
"type": [
"number",
"null"
]
},
"volume_24h": {
"description": "USDC traded in the last 24h; 0 when none",
"type": "number"
}
},
"required": [
"slug",
"title",
"status",
"start_date",
"end_date",
"volume",
"volume_24h",
"liquidity",
"open_interest",
"restricted",
"tags",
"market_count",
"markets"
],
"type": "object"
},
"type": "array"
},
"next_cursor": {
"description": "Pass as cursor for the next page; empty on the last page",
"type": "string"
},
"note": {
"description": "Present only on an empty response",
"type": "string"
},
"price_basis": {
"description": "How to read every price field",
"type": "string"
},
"source": {
"description": "Upstream hosts used",
"items": {
"type": "string"
},
"type": "array"
},
"tag": {
"type": "string"
}
},
"required": [
"as_of",
"source",
"price_basis",
"tag",
"closed",
"count",
"events",
"next_cursor"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
},
"tags": [
"prediction-markets",
"polymarket",
"events-by-topic",
"forecasting",
"odds"
]
}
},
"lastUpdated": "2026-10-20T21:16:40.911Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-20T21:16:40.77Z"
},
"resource": "https://polymarket.use.x402atlas.com/events",
"serviceName": "Polymarket Events",
"tags": [
"prediction-markets",
"polymarket",
"events-by-topic",
"forecasting",
"odds"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Prediction market events by topic — page through open or closed Polymarket events under one tag such as politics, crypto, economy, geopolitics or ai, each with status, dates, volume, liquidity and markets with current YES prices. Use to survey what a prediction market is pricing on a subject."
}What the leaf hashes
{"body":"89d6bbbddf074ffe116338173bea5d14b56d3f2b2cdc53aaa73654db067efa8a","id":118581,"kind":"listing","method":"baseline/1","observed_us":1793025613464967,"prev":null,"subject":"x402_bazaar:https://polymarket.use.x402atlas.com/events","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).
- 0x2a89b85042d0217b8527ddddcc41383972a9e7f26e7353af4bd3de3df65f1d17
- 0x5d08b47143171d5667ed5d0250271b401e181d458c9ae29be715c4e58e15b437
- 0xa78d615007fce6cc19ea0d6fa09b1298db199be1e328910972bdce7df02297fa
- 0x3905d4bd50cf89091ebba21bc35e45dc14c6b05d024d575f64ce6d336d9d11a3
- 0x825f29749cacfcb2b0ccf9f116c5bb3eb0da04712a644bdafbfdc3af59bb37a3
- 0x78ae271243b1281137bdc50d71fa5b6a5bd25c44c840815e228889fc4e7797b0
- 0x88c960e907eb6dc5d5d33eaf3d6c93443be64806f5548071d34556a294cadf56
- 0x652df0094190e0ed7f34254df1a48140e5cea1e2eb32306269765ddbf2743e2a
- 0x306383bec1eb54407a4a3a9ada117afeabbe1add493fca2695b1f0d5ebff1cd1
- 0x4794af3ce7667b405167c54a941da6ec756bac415e8d990090cc042e6212d8fc
- 0x7b0bb4483af5e03d9f02e715a84d790ec3df1fc57d38f1d1a5ed296a7e822d7f
- 0xeab0020f03650c1a79ed79927ae9d808c59a41295a86d1285582516590c954e6
- 0x16a8fb19a5e4f4535e7cb3fce5c15ecfa188586bb74e347ee71164f8af27dfe1
- 0xd843afcced75dedd39194ff9bd12326b88099e6112686db2299392d022dc3146
- 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
- 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae