← The evidence ledger
Evidence row 72675
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://coord.taifoon.dev/v1/x402/class/mech.predict
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- f6f11f9f3fb9c69020c22b85c4e22966d7a4c0c34237587514fdede643ea78d4
- Leaf
- 0x2371050a47101504fee139d3ea931f6e45808e1d7e4897f3ac94bafa97326f5f
What was observed
{
"endpoints": [
[
"x402",
"https://coord.taifoon.dev/v1/x402/class/mech.predict"
]
],
"name": "Taifoon",
"owner_address": "0x3574999dd4c96eb73bd6e11d4177010c83e14f5b",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"description": "Olas-style yes/no forecast: { question } in, { p_yes, p_no, confidence, info_utility } out with reasoning and sources. BTC/ETH/SOL price questions with a threshold and a date are modelled from the Taifoon venue tape (sources replayable); any other question is a small open model's prior with no web search (no sources, confidence at most 0.3). Checked before you are charged. 0.01 USDC a forecast.",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "eip155:8453",
"payTo": "0x3574999dd4c96eB73Bd6e11D4177010C83E14f5b",
"resource": "https://coord.taifoon.dev/v1/x402/class/mech.predict",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"description": "Olas-style yes/no forecast: { question } in, { p_yes, p_no, confidence, info_utility } out with reasoning and sources. BTC/ETH/SOL price questions with a threshold and a date are modelled from the Taifoon venue tape (sources replayable); any other question is a small open model's prior with no web search (no sources, confidence at most 0.3). Checked before you are charged. 0.01 USDC a forecast.",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "eip155:42161",
"payTo": "0x3574999dd4c96eB73Bd6e11D4177010C83E14f5b",
"resource": "https://coord.taifoon.dev/v1/x402/class/mech.predict",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0x3600000000000000000000000000000000000000",
"description": "Olas-style yes/no forecast: { question } in, { p_yes, p_no, confidence, info_utility } out with reasoning and sources. BTC/ETH/SOL price questions with a threshold and a date are modelled from the Taifoon venue tape (sources replayable); any other question is a small open model's prior with no web search (no sources, confidence at most 0.3). Checked before you are charged. 0.01 USDC a forecast.",
"extra": {
"name": "USDC",
"version": "2"
},
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "eip155:5042",
"payTo": "0x3574999dd4c96eB73Bd6e11D4177010C83E14f5b",
"resource": "https://coord.taifoon.dev/v1/x402/class/mech.predict",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
"description": "Olas-style yes/no forecast: { question } in, { p_yes, p_no, confidence, info_utility } out with reasoning and sources. BTC/ETH/SOL price questions with a threshold and a date are modelled from the Taifoon venue tape (sources replayable); any other question is a small open model's prior with no web search (no sources, confidence at most 0.3). Checked before you are charged. 0.01 USDC a forecast.",
"extra": {
"name": "Global Dollar",
"version": "1"
},
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "eip155:4663",
"payTo": "0x3574999dd4c96eB73Bd6e11D4177010C83E14f5b",
"resource": "https://coord.taifoon.dev/v1/x402/class/mech.predict",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
"description": "Olas-style yes/no forecast: { question } in, { p_yes, p_no, confidence, info_utility } out with reasoning and sources. BTC/ETH/SOL price questions with a threshold and a date are modelled from the Taifoon venue tape (sources replayable); any other question is a small open model's prior with no web search (no sources, confidence at most 0.3). Checked before you are charged. 0.01 USDC a forecast.",
"extra": {
"name": "USDC",
"version": "2"
},
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "eip155:143",
"payTo": "0x3574999dd4c96eB73Bd6e11D4177010C83E14f5b",
"resource": "https://coord.taifoon.dev/v1/x402/class/mech.predict",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"description": "Olas-style yes/no forecast: { question } in, { p_yes, p_no, confidence, info_utility } out with reasoning and sources. BTC/ETH/SOL price questions with a threshold and a date are modelled from the Taifoon venue tape (sources replayable); any other question is a small open model's prior with no web search (no sources, confidence at most 0.3). Checked before you are charged. 0.01 USDC a forecast.",
"extra": {
"feePayer": "F742C4VfFLQ9zRQyithoj5229ZgtX2WqKCSFKgH2EThq"
},
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "GQcEn5pLcweo7qaiy3rDdsiUPiygygmFBaixNtNqhQVD",
"resource": "https://coord.taifoon.dev/v1/x402/class/mech.predict",
"scheme": "exact"
}
],
"description": "Olas-style yes/no forecast: { question } in, { p_yes, p_no, confidence, info_utility } out with reasoning and sources. BTC/ETH/SOL price questions with a threshold and a date are modelled from the Taifoon venue tape (sources replayable); any other question is a small open model's prior with no web search (no sources, confidence at most 0.3). Checked before you are charged. 0.01 USDC a forecast.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"question": "Will Bitcoin be above $100,000 on December 31, 2026?"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"follow_up": {
"id": "fc_…",
"resolver": "tape",
"state": "PENDING"
},
"forecast": {
"confidence": 0.6,
"grounded": "tape",
"info_utility": 0.7,
"p_no": 0.69,
"p_yes": 0.31,
"reasoning": "BTC closed at … USD on the Taifoon venue tape …; a driftless lognormal price ends at or above 100,000 with probability 0.31. …",
"sources": [
{
"as_of": "…",
"kind": "tape",
"url": "https://clob.taifoon.dev/tape/v1/candles/BTC/1m?from=…&to=…",
"value": 0,
"what": "the last closed 1-minute BTC bar (its close is the spot)"
}
]
},
"prompt": "Will Bitcoin be above $100,000 on December 31, 2026?",
"requestId": "fc_…",
"result": "{\"p_yes\":0.31,\"p_no\":0.69,\"confidence\":0.6,\"info_utility\":0.7}",
"tool": "prediction-tape"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"question": {
"description": "one yes/no question (or the Olas prompt \"With the given question \\\"…\\\" …\")",
"maxLength": 2000,
"minLength": 8,
"type": "string"
}
},
"required": [
"question"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"queryParams": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"follow_up": {
"description": "the row kept for scoring once the question resolves: id, resolver (tape | null), state (PENDING | MISSING)",
"type": "object"
},
"forecast": {
"description": "p_yes, p_no, confidence, info_utility, reasoning, grounded (tape | none), sources (each a GET that replays it), limits",
"type": "object"
},
"prompt": {
"type": "string"
},
"requestId": {
"type": "string"
},
"result": {
"description": "JSON string { p_yes, p_no, confidence, info_utility }, each in [0, 1], p_yes + p_no = 1 (the Olas prediction tools’ result)",
"type": "string"
},
"tool": {
"enum": [
"prediction-tape",
"prediction-offline"
],
"type": "string"
}
},
"required": [
"requestId",
"result",
"prompt",
"tool"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791930045/bazaar-icons/4c3bc9abe8ba2916.png",
"lastUpdated": "2026-10-25T15:06:13.019Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 3,
"lastCalledAt": "2026-10-25T15:06:09.369Z"
},
"resource": "https://coord.taifoon.dev/v1/x402/class/mech.predict",
"serviceName": "Taifoon",
"tags": [
"mech",
"predict"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Olas-style yes/no forecast: { question } in, { p_yes, p_no, confidence, info_utility } out with reasoning and sources. BTC/ETH/SOL price questions with a threshold and a date are modelled from the Taifoon venue tape (sources replayable); any other question is a small open model's prior with no web search (no sources, confidence at most 0.3). Checked before you are charged. 0.01 USDC a forecast."
}What the leaf hashes
{"body":"f6f11f9f3fb9c69020c22b85c4e22966d7a4c0c34237587514fdede643ea78d4","id":72675,"kind":"listing","method":"baseline/1","observed_us":1793025486357688,"prev":null,"subject":"x402_bazaar:https://coord.taifoon.dev/v1/x402/class/mech.predict","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).
- 0x2370b6090c513c4b56b18ba600b2ddae009d6ffe6153bffff82acc35ef86d9e8
- 0x785c83f2d0b6529ef551e19f142fc156ad34cf599040bf937a56d2b433747466
- 0x17de3cfe9f9f24b8b349617864105191baea80647ae459bfd401040e350eb67c
- 0x73f0733f108f033c1b070aed0faa55b6fa40b8bb10525984b58b696be99a9426
- 0x1e5107994055151cfef9ec56518b887a7a3dc78ca55e0b8441e4c02f39a2a628
- 0x4f4d4577ec347333e12469f81506c2dd6ad840dbeac6c9c76279a85b805d3f5c
- 0x2458d27bd9c430a3777f050365621f82f2b0a8a5968fa1d3ee45fd71f9836fa0
- 0x7317a01cf4e9b999f63d66cd73dca74e55d80e4a23589713e0816bda52475913
- 0xaad5f368abcc474c3436ca384b60b683f25552912fbcd4133da43505e2657a7f
- 0x704493bae418bde4fd104ba47dec27e1d8d9ddc2c72e86c9507cb5b9906a220b
- 0xafd0058f5459c39aa93b8bea4d66dcde1a2763032ab59f971a1c12b8652db90b
- 0xac5b705d705b0f1bc42cf2ad1a7f1f197ea96178ce0704432cbb5d556e8671a4
- 0x9d75d4d3ab6219edefa04be60b32fdd56be7a7672f370a5115f02f7b098ecd27
- 0x9dfd312f3d4937f7cb144cee3987e8516f222932b4ea286605236d73cfa1ed16
- 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
- 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae