← The evidence ledger
Evidence row 121312
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://signal-engine-production-d88d.up.railway.app/v1/arena/vwap_reversion/ETH
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 619db45f7ab972b3eb6b653e9fddaf20abf4302d495dca5cad3ab1f435c66756
- Leaf
- 0xc89d1d4ac2b4ad8b968e32a5096655f67ecd09b1902fd45eefcb39f294f6c3c8
What was observed
{
"endpoints": [
[
"x402",
"https://signal-engine-production-d88d.up.railway.app/v1/arena/vwap_reversion/ETH"
]
],
"name": "signal-engine-production-d88d.up.railway.app/v1/arena/vwap_reversion/ETH",
"owner_address": "0xca87adbcffdf6539a387783fef17a91dbabeef52",
"raw": {
"accepts": [
{
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"description": "Individual arena strategy signal",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "eip155:8453",
"outputSchema": {
"input": {
"method": "GET",
"queryParams": {},
"schema": {
"properties": {
"strategy_id": {
"default": "vwap_reversion",
"description": "Strategy identifier (path parameter)",
"enum": [
"ema_5_breakout",
"rsi_7_extremes",
"rsi_reversion_swing",
"vwap_reversion"
],
"type": "string"
},
"symbol": {
"default": "BTC",
"description": "Crypto asset ticker (path parameter)",
"enum": [
"BTC",
"ETH",
"SOL",
"DOGE"
],
"type": "string"
}
},
"required": [
"strategy_id",
"symbol"
],
"type": "object"
},
"type": "http"
},
"output": {
"example": {
"hold_time_sec": 300,
"reasoning": "Bollinger band squeeze with volume expansion",
"score": 0.82,
"signal": "long",
"sl_pct": 0.008,
"strategy_id": "vwap_reversion",
"strategy_name": "VWAP Reversion",
"symbol": "BTC",
"tp_pct": 0.015
},
"type": "json"
}
},
"payTo": "0xCa87aDbCffdf6539A387783fEF17A91dbaBEEF52",
"resource": "https://signal-engine-production-d88d.up.railway.app/v1/arena/vwap_reversion/ETH",
"scheme": "exact"
}
],
"description": "Individual arena strategy signal",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {},
"schema": {
"properties": {
"strategy_id": {
"default": "vwap_reversion",
"description": "Strategy identifier (path parameter)",
"enum": [
"ema_5_breakout",
"rsi_7_extremes",
"rsi_reversion_swing",
"vwap_reversion"
],
"type": "string"
},
"symbol": {
"default": "BTC",
"description": "Crypto asset ticker (path parameter)",
"enum": [
"BTC",
"ETH",
"SOL",
"DOGE"
],
"type": "string"
}
},
"required": [
"strategy_id",
"symbol"
],
"type": "object"
},
"type": "http"
},
"output": {
"example": {
"hold_time_sec": 300,
"reasoning": "Bollinger band squeeze with volume expansion",
"score": 0.82,
"signal": "long",
"sl_pct": 0.008,
"strategy_id": "vwap_reversion",
"strategy_name": "VWAP Reversion",
"symbol": "BTC",
"tp_pct": 0.015
},
"type": "json"
}
},
"schema": {
"output": {
"properties": {
"hold_time_sec": {
"description": "Suggested hold time in seconds",
"type": "integer"
},
"reason": {
"description": "Present when signal is null (e.g. no_signal, no_context)",
"type": "string"
},
"reasoning": {
"type": "string"
},
"score": {
"maximum": 1,
"minimum": 0,
"type": "number"
},
"signal": {
"enum": [
"long",
"short"
],
"nullable": true,
"type": "string"
},
"sl_pct": {
"description": "Stop-loss percentage",
"type": "number"
},
"strategy_id": {
"type": "string"
},
"strategy_name": {
"type": "string"
},
"symbol": {
"type": "string"
},
"tp_pct": {
"description": "Take-profit percentage",
"type": "number"
}
},
"required": [
"strategy_id",
"symbol"
]
}
}
}
},
"lastUpdated": "2026-10-24T00:40:25.63Z",
"quality": {
"l30DaysTotalCalls": 7,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-24T00:40:25.426Z"
},
"resource": "https://signal-engine-production-d88d.up.railway.app/v1/arena/vwap_reversion/ETH",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Individual arena strategy signal"
}What the leaf hashes
{"body":"619db45f7ab972b3eb6b653e9fddaf20abf4302d495dca5cad3ab1f435c66756","id":121312,"kind":"listing","method":"baseline/1","observed_us":1793025619747185,"prev":null,"subject":"x402_bazaar:https://signal-engine-production-d88d.up.railway.app/v1/arena/vwap_reversion/ETH","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).
- 0xc89d119d32475dcf29961f1e273b0a4c1764b6089b5717ae6be778bfda3b1346
- 0x091e402eb19ce8805ed3ebd7497579ef61b798f25e7796ccc15718adb812125f
- 0x23038703e036e1a8b460dc9bdb620cd2590483b31acbfca86ea93ef0f631bc90
- 0x98103eb47a8837e2e6e75cec28ddb2ae07621c882ce033a8df345346d2e9f935
- 0x66d4a5d5dc9fc8d3aabab73a59467af47fdfbd1ee172c72d11ff01b6843dde28
- 0x6d795c7b92d09f257f82f0a75d6a5b60705197160c387a8d335396d8605d5cdf
- 0x3c9f3a5f40fe27c79c6bb1b3b9bca5fced77e183ac06c294736aa1874f39b826
- 0x9d9cd9e199825012823bedfb9bc437245cf019115cc8cb1a8ee15a8d4b3bbc42
- 0x1148a3536fbc4c6e4bca38b54eb0f7b8853df52207579c13e0b6efa25a2fe4cf
- 0x99b83a0d8096cc6e79ca10fec0381f61738bb5a26cb8d4668d93598ea82a302a
- 0xde080106ffe5b9071b2505ae31b17f7da4d3a9c7f4f4d9819f700d720702beeb
- 0xde09984239f27618a13932caf48f5d39831fc5021500b0581dce0dabd570bd6e
- 0x72e35aac89ebca631656c2b1aecbdc094807d9807f12c22a6ddf35cc1f5e21d6
- 0x5b20d8aab05225a3497eadcce89d2e2a586a510fb31334793d3f46f88f0157c5
- 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
- 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae