← The evidence ledger
Evidence row 279349
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://grok-backtest-api.fly.dev/optimize
- Recorded
- Previous row
- #257493
- Body SHA-256
- 94f815634d4e4fe80c68a1620efbfc84ef5b8de0f3d8e3b0d731274e3c0c29ac
- Leaf
- 0xaf85407c79570bf7b7db4a50652eace45e6015bfa07f59022a58ddca8a26dea9
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": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-26T15:43:37.448Z"
},
"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":"94f815634d4e4fe80c68a1620efbfc84ef5b8de0f3d8e3b0d731274e3c0c29ac","id":279349,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793042232485219,"prev":257493,"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).
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- 0x1fa00e360a84617ebc07280dd581c8e167ccf129b5a9ca5332a06c1ac3bfb044
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- 0x32276208f7057565c49443e3c9c9c775fc6bdafa700a2d66717175128fc3972d
- 0xcd4f742a99e4debbd228d011824fbed07d974b5daba7d62b55cc2b2220a43839
- 0xd72c1a10496b70197c1716ffa3e5a8b2cb8e0212cae9b6ff4962eae5b24a376f
- 0x0afbc4d0d9c3a2b72534cdd5c23ded48490399ee80787606f80529b0216dca38
- 0x80035696c0363eda2183ab4eb1400a319549c5f8e0607c7011f93ea02244d507
- 0x72ee242bc0e5ab60c6446aa0270adff2ea2d6f2181561ec391e6fd3e22647c75
- 0xcfa4bc1519c21b2a859b102250a82fc790ed215209a4c0fbfbe223ddbae52cad
- 0x863ea2425c8cc958ae125e95c3e3170c9ac576a8c72849cb3f596e616b6fd6a8
- 0xd17258d4f01d074dcaf38f36218b36058144c3d50c3b488953a815c54d6674d2
- 0xe292b5a99219f136bce6647ce74b21240a1c7331d2475b1839220fd363c94217
- 0x3b4dba7d874fc323b0a364140a9c60f37bf547fe671897653118a9873fe03420
- 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
- 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
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- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae