← The evidence ledger
Evidence row 120727
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/trading/position-size
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 93b1f80dd33c3ed1184b65860e5704c0ad532da7958e58c9ece928b93749a253
- Leaf
- 0x3c2e2e4dff26e6668d68fdfa733ae1485ed890ea3042d802f2b76ca789737fa7
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/trading/position-size"
]
],
"name": "Saylor Innovations Data Desk",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:position-size",
"name": "USD Coin",
"note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:position-size",
"name": "USD Coin",
"note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:137",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:position-size",
"name": "USD Coin",
"note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:42161",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
"memo": "saylor:datadesk:position-size",
"reference": "4wLdFMLKnFkme92zhXj5tRUP4t5A7AwyuRnw2G63Y6Th",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpwb3NpdGlvbi1zaXplIiwicmVmZXJlbmNlIjoiNHdMZEZNTEtuRmttZTkyemhYajV0UlVQNHQ1QTdBd3l1Um53Mkc2M1k2VGgiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjUwODA2Mzg5M30.hlx1SG096zBtZX2IB1nJULmThfsAVu9JUdb9FEMqPzA"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
"memo": "saylor:datadesk:position-size",
"reference": "9S5NByJHvnzkcTURqhamdsECMw58LDeYdN8pLtyctcwz",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpwb3NpdGlvbi1zaXplIiwicmVmZXJlbmNlIjoiOVM1TkJ5Skh2bnprY1RVUnFoYW1kc0VDTXc1OExEZVlkTjhwTHR5Y3Rjd3oiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjUwODA2Mzg5M30.513aji1nuKGe67L4UTLTgMATLnFu52bTE-ph4zHbK8s"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "90602",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:position-size",
"native": true,
"note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
"quotedLamports": "93405",
"reference": "9sKrbzdT1DZcoe4VznXCVc6qFXvx8ERcitgtBEG5dNJC",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpwb3NpdGlvbi1zaXplIiwicmVmZXJlbmNlIjoiOXNLcmJ6ZFQxRFpjb2U0VnpuWENWYzZxRlh2eDhFUmNpdGd0QkVHNWROSkMiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTA2MDIsImV4cCI6MTc5MjUwODA2Mzg5M30.Agms7XzqwPpvW8pZDNftSXPku-4KjXFW6Mh56UYSXDE",
"solUsdPrice": 107.06
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "Position size from account equity, risk percent, entry and stop: units, notional, leverage needed and target prices at chosen R multiples.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"account_usd": "10000",
"entry_price": "65000",
"risk_percent": "1",
"stop_price": "63000"
},
"type": "http"
},
"output": {
"example": {
"account_usd": 10000,
"entry_price": 65000,
"leverage_needed": 0.325,
"margin_for_10x_usd": 325,
"note": "Sizes the trade so that hitting the stop loses about risk_percent of the account (fees included if fee_percent is given). Slippage can make a real stop fill worse.",
"position_notional_usd": 3250,
"position_size_units": 0.05,
"risk_percent": 1,
"risk_usd": 100,
"side": "long",
"source": "Fixed fractional position sizing",
"stop_distance_percent": 3.0769,
"stop_price": 63000,
"targets": [
{
"price": 67000,
"profit_usd": 100,
"r_multiple": 1
},
{
"price": 69000,
"profit_usd": 200,
"r_multiple": 2
},
{
"price": 71000,
"profit_usd": 300,
"r_multiple": 3
}
]
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"account_usd": {
"description": "account equity",
"type": "string"
},
"entry_price": {
"description": "planned entry",
"type": "string"
},
"risk_percent": {
"description": "percent of the account to risk, e.g. 1",
"type": "string"
},
"stop_price": {
"description": "stop loss price (below entry = long, above = short)",
"type": "string"
}
},
"required": [
"account_usd",
"risk_percent",
"entry_price",
"stop_price"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"account_usd": {
"description": "Account equity used",
"type": "number"
},
"entry_price": {
"description": "Planned entry price",
"type": "number"
},
"leverage_needed": {
"description": "Notional divided by account equity",
"type": "number"
},
"margin_for_10x_usd": {
"description": "Margin needed if the position is opened at 10x",
"type": "number"
},
"note": {
"description": "Plain-language caveat about how to read and use the result",
"type": "string"
},
"position_notional_usd": {
"description": "Notional value of the position in USD",
"type": "number"
},
"position_size_units": {
"description": "Units to buy or sell so the stop loses the risk amount",
"type": "number"
},
"risk_percent": {
"description": "Percent of the account risked",
"type": "number"
},
"risk_usd": {
"description": "Amount lost if the stop is hit",
"type": "number"
},
"side": {
"description": "Trade direction inferred from the stop (below entry is long)",
"type": "string"
},
"source": {
"description": "Where the data or formula comes from",
"type": "string"
},
"stop_distance_percent": {
"description": "Distance from entry to stop, in percent",
"type": "number"
},
"stop_price": {
"description": "Stop loss price",
"type": "number"
},
"targets": {
"description": "Take-profit prices at the requested R multiples",
"items": {
"properties": {
"price": {
"description": "Target price",
"type": [
"number",
"null"
]
},
"profit_usd": {
"description": "Profit in USD if the target is reached",
"type": [
"number",
"null"
]
},
"r_multiple": {
"description": "Multiple of the initial risk",
"type": [
"number",
"null"
]
}
},
"type": "object"
},
"type": "array"
}
},
"required": [
"position_size_units",
"position_notional_usd"
],
"type": "object"
},
"type": {
"const": "json",
"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/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
"lastUpdated": "2026-10-20T14:52:23.95Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-20T14:52:23.696Z"
},
"resource": "https://saylorinnovations.com/api/trading/position-size",
"serviceName": "Saylor Innovations Data Desk",
"tags": [
"position size calculator crypto",
"size a trade risking 1 percent",
"stop loss position sizing",
"risk reward target prices",
"leverage needed for trade size"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Position size from account equity, risk percent, entry and stop: units, notional, leverage needed and target prices at chosen R multiples."
}What the leaf hashes
{"body":"93b1f80dd33c3ed1184b65860e5704c0ad532da7958e58c9ece928b93749a253","id":120727,"kind":"listing","method":"baseline/1","observed_us":1793025618531954,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/trading/position-size","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).
- 0x3c2dfef62b6f741be1e62c127815c94ce396028fd3ef6b292c1362ff9f3a6957
- 0x520bc5e530dd6c93f8cf696a39fdf38c86e45a21c0f3c4255ce60e5de7f56c1e
- 0xdc2faf596b90bb0c161b79eb44796064325d833c3624dcd0754b5de1e12cc466
- 0x391318e3cd7ad12ae420cc3c00b5a9cec0b9449207662d3ce20c75b9b8b4b5c2
- 0x381281a45b69f12ee55b6f99be70111c2c4915b176df1d68c88524b45ea0bb0d
- 0x8bf69e7d77bd677a50433604c8769abbca055417f278772d2bb9d1f0dff0b5a4
- 0x50907652133cf14361c5ec9a55f6a4d24fb360082d9c882f2df939756a50a6d1
- 0xb22a96fc0a76affd61289535c76aeeeb02dd3cccd0c1f32f9aeabb64a5e3d0d5
- 0x2926c7c966c85d099a16500d2f60c987788ceda9f60a3ef3a82b5168b1aaf40f
- 0x0c503c4524f0ed9ea5e3dd08b1e8fbfcbbce2a308fb2360a27a4ed64ec891f2c
- 0x876d91ae08f3c341c1d9ba4ed92a9c937c054b5c7d6cd935bb21dda6fb029cac
- 0xdb4b9388e3fe1df4b04e149e559f925fb354066ae1d2537fd6f918162716fadf
- 0xe2214b3d6a48396930d1739b02ea366de2aac5337c9b9ff2aff28cecf6518139
- 0x7f594f5609f388d64d3cda87b5631d393ee8300bb09bad71f150113a5886ee33
- 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
- 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae