← The evidence ledger
Evidence row 257493
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://grok-backtest-api.fly.dev/optimize
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 3b675d1c63884371b838953abf5f7350efdac015d55370b6369fec0d4c229e74
- Leaf
- 0xbcf96a35c27bd2c04e27683bbf32d1888a74b46e58ce6d196ce274e2d004e52c
What was observed
{
"endpoints": [
[
"x402",
"https://grok-backtest-api.fly.dev/optimize"
]
],
"name": "Strategy Optimizer",
"owner_address": "0x4e6e6c5889dc8b1b96c60ab82d21ed45c6b629f3",
"raw": {
"accepts": [
{
"amount": "500000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x4E6E6C5889dc8B1B96c60AB82D21ED45C6b629f3",
"scheme": "exact"
}
],
"description": "Grid-search up to 50 parameter combos of a backtest strategy; ranks by worst-half (H1/H2) return with neighbourhood smoothing, flags overfitting, and recommends the most robust parameters rather than the best-fit ones.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"end": "2026-10-25",
"fee": 0.009,
"grid": {
"atr_mult": [
1.5,
2,
3
],
"lookback": [
10,
20,
30
],
"risk_per_trade": [
0.03,
0.05
]
},
"initial_capital": 150,
"slippage": 0.002,
"start": "2026-04-25",
"strategy": {
"params": {
"gate": "btc_ma50"
},
"type": "breakout"
},
"universe": {
"mode": "point_in_time",
"top_n": 30
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"best_by_return": {
"params": {
"atr_mult": 2,
"lookback": 10,
"risk_per_trade": 0.05
}
},
"combos_run": 18,
"combos_total": 18,
"overfitting_flags": [
{
"detail": "...",
"id": "best_return_not_robust"
}
],
"recommended": {
"h1_return_pct": -6.97,
"h2_return_pct": 19.88,
"params": {
"atr_mult": 2,
"lookback": 20,
"risk_per_trade": 0.05
},
"return_pct": 10.98,
"robust_score": -11.97
},
"summary": {
"median_return_pct": 1.2,
"pct_profitable": 55.6
},
"truncated": false
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"end": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
]
},
"fee": {
"maximum": 0.05,
"minimum": 0,
"type": "number"
},
"grid": {
"additionalProperties": {
"items": {
"anyOf": [
{
"type": "integer"
},
{
"type": "number"
},
{
"type": "string"
},
{
"type": "null"
}
]
},
"type": "array"
},
"type": "object"
},
"initial_capital": {
"exclusiveMinimum": 0,
"maximum": 1000000000,
"type": "number"
},
"rank_by": {
"enum": [
"robust",
"return"
],
"type": "string"
},
"slippage": {
"maximum": 0.05,
"minimum": 0,
"type": "number"
},
"start": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
]
},
"strategy": {
"additionalProperties": false,
"properties": {
"params": {
"additionalProperties": true,
"type": "object"
},
"type": {
"enum": [
"breakout",
"momentum",
"dip",
"ma_trend"
],
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
},
"universe": {
"additionalProperties": false,
"properties": {
"coins": {
"anyOf": [
{
"items": {
"type": "string"
},
"maxItems": 200,
"type": "array"
},
{
"type": "null"
}
]
},
"min_age_days": {
"maximum": 120,
"minimum": 0,
"type": "integer"
},
"min_avg_dollar_volume": {
"minimum": 0,
"type": "number"
},
"mode": {
"enum": [
"point_in_time",
"current_top",
"fixed"
],
"type": "string"
},
"top_n": {
"maximum": 200,
"minimum": 5,
"type": "integer"
}
},
"type": "object"
}
},
"required": [
"strategy",
"grid"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"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/v1793029411/bazaar-icons/5af093559a8b46a6.png",
"lastUpdated": "2026-10-26T15:43:37.535Z",
"quality": {
"lastCalledAt": "2026-10-26T15:43:37.535Z"
},
"resource": "https://grok-backtest-api.fly.dev/optimize",
"serviceName": "Strategy Optimizer",
"tags": [
"crypto",
"backtest",
"optimize",
"robustness"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Grid-search up to 50 parameter combos of a backtest strategy; ranks by worst-half (H1/H2) return with neighbourhood smoothing, flags overfitting, and recommends the most robust parameters rather than the best-fit ones."
}What the leaf hashes
{"body":"3b675d1c63884371b838953abf5f7350efdac015d55370b6369fec0d4c229e74","id":257493,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793029765537171,"prev":null,"subject":"x402_bazaar:https://grok-backtest-api.fly.dev/optimize","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).
- 0xbcf99bbc6c29c2d0edececc3fe4c2344602939c31addf30692600c7d1003abdb
- 0x758b2985d87bbffe4fde81829ab01fd56a21021d871e9bac0fee48d012706d7c
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- 0x749d567ddb43e838a41705fb9cf927509266a9ba21a9bbaaeaa715a34df647cd
- 0xf4cc7becd16e8c223c43f300baf95e0293b5e041e7fbba4c4466e94af369c839
- 0xe3a924a3a14fe446207c7ae78c530046fb7d233978902a597de3ce987e53748a
- 0x733216ced79b407352c3e6fee1d044c4b6dce9af9f128d380e5c6fd80389ba5c
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- 0x7096a251f9a01cad132ba398ebbd4caf06e5ec3cf4c8bdc56a7f1285eabd682f
- 0x747da36f7781b2b20c53f35968bf28ef3b43376581ce1ca8987f1d7a2a347e61
- 0x571bf2cc487a35d2ef7662b375d1fa9179fe0f6cab6f6cebdb1a6113d25f3c92
- 0xd5b5bb5812612371a70171b2252d90e95bb0581ea5a3be198122adc8442e4f79
- 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
- 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
- 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
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- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae