← The evidence ledger
Evidence row 66007
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://api.delx.ai/api/v1/x402/overround
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- e430da90b7938027981cfef4f0db829f910db502cea1efe6abf9f0ff74986fc5
- Leaf
- 0x493af18d46dbab85462e50714832e3ad79aeb314261b6387fe5b085455e3a893
What was observed
{
"endpoints": [
[
"x402",
"https://api.delx.ai/api/v1/x402/overround"
]
],
"name": "Book Overround",
"owner_address": "0x9f8bd9875b3e0b632a24a3a7c73f7787175e73a2",
"raw": {
"accepts": [
{
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"description": "Overround/vig from a set of mutually exclusive implied probs. Call when measuring book margin before de-vigging. Returns overround and sum of probs as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.",
"extra": {
"accept_label": "Coinbase CDP",
"app": "Delx Commerce",
"erc8004_id": "14340",
"facilitator_url": "https://api.cdp.coinbase.com/platform/v2/x402",
"name": "USD Coin",
"provider": "coinbase",
"provider_label": "Coinbase CDP",
"version": "2"
},
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "eip155:8453",
"payTo": "0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2",
"resource": "https://api.delx.ai/api/v1/x402/overround",
"scheme": "exact"
},
{
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"description": "Overround/vig from a set of mutually exclusive implied probs. Call when measuring book margin before de-vigging. Returns overround and sum of probs as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.",
"extra": {
"accept_label": "PayAI Base",
"app": "Delx Commerce",
"erc8004_id": "14340",
"facilitator_url": "https://facilitator.payai.network",
"name": "USD Coin",
"provider": "payai",
"provider_label": "PayAI Base",
"version": "2"
},
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "eip155:8453",
"payTo": "0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2",
"resource": "https://api.delx.ai/api/v1/x402/overround",
"scheme": "exact"
},
{
"amount": "1000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"description": "Overround/vig from a set of mutually exclusive implied probs. Call when measuring book margin before de-vigging. Returns overround and sum of probs as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.",
"extra": {
"accept_label": "PayAI Solana",
"app": "Delx Commerce",
"erc8004_id": "14340",
"facilitator_url": "https://facilitator.payai.network",
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
"name": "USD Coin",
"provider": "payai",
"provider_label": "PayAI Solana",
"version": "2"
},
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "28heAMpFkeUJsL7o7apiK4oJwZWq2fUHinRwbgYYsemG",
"resource": "https://api.delx.ai/api/v1/x402/overround",
"scheme": "exact"
}
],
"description": "Overround/vig from a set of mutually exclusive implied probs. Call when measuring book margin before de-vigging. Returns overround and sum of probs as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.",
"extensions": {
"bazaar": {
"category": "signal-normalize",
"info": {
"input": {
"body": {
"probs": [
0.55,
0.55
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"n": 2,
"overround": 0.10000000000000007,
"schema": "delx/util-overround/v1",
"sum_probs": 1.1
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"body": {
"additionalProperties": true,
"properties": {
"probs": {
"description": "Input field: probs.",
"type": "array"
}
},
"required": [
"probs"
],
"type": "object"
},
"bodyType": {
"const": "json",
"type": "string"
},
"method": {
"const": "POST",
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"additionalProperties": true,
"description": "Bounded first-party JSON result; input is processed in memory and not retained.",
"properties": {
"n": {
"type": "integer"
},
"overround": {
"type": "number"
},
"schema": {
"type": "string"
},
"sum_probs": {
"type": "number"
}
},
"type": "object"
}
},
"required": [
"input",
"output"
],
"type": "object"
},
"serviceName": "Book Overround",
"summary": "Overround/vig from a set of mutually exclusive implied probs. Call when measuring book margin before de-vigging. Returns overround and sum of probs as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.",
"tags": [
"x402",
"agents",
"local-first",
"micro-usdc",
"pay-per-call"
]
},
"payment-identifier": {
"info": {
"required": false
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"id": {
"maxLength": 128,
"minLength": 16,
"pattern": "^[a-zA-Z0-9_-]+$",
"type": "string"
},
"required": {
"type": "boolean"
}
},
"required": [
"required"
],
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1786031869/bazaar-icons/f116ee851813c2b6.png",
"lastUpdated": "2026-10-08T06:09:06.694Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-08T06:09:06.386Z"
},
"resource": "https://api.delx.ai/api/v1/x402/overround",
"serviceName": "Book Overround",
"tags": [
"x402",
"agents",
"local-first",
"micro-usdc",
"pay-per-call"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Overround/vig from a set of mutually exclusive implied probs. Call when measuring book margin before de-vigging. Returns overround and sum of probs as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls."
}What the leaf hashes
{"body":"e430da90b7938027981cfef4f0db829f910db502cea1efe6abf9f0ff74986fc5","id":66007,"kind":"listing","method":"baseline/1","observed_us":1793025459534808,"prev":null,"subject":"x402_bazaar:https://api.delx.ai/api/v1/x402/overround","subject_kind":"source_record"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.