← The evidence ledger
Evidence row 2201467
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://pet-calc.x402tookit.com/resting-energy
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- f43bf6e7b48bc6489f8d584456526aa969eab8524cbb7abde4f6497fb6f19765
- Leaf
- 0x897fff3b1f179958967a0a8134991849964250e0dd690a2ced90e4534d773492
What was observed
{
"endpoints": [
[
"x402",
"https://pet-calc.x402tookit.com/resting-energy"
]
],
"name": "Pet Care Calc",
"owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
"raw": {
"accepts": [
{
"amount": "20000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"transactionVersions": [
0
]
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42161",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
}
],
"description": "Resting energy requirement (RER) in kcal/day for a dog or cat from body weight, using 70 x kg^0.75 and the linear shortcut.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"unit": "kg",
"weight": 10
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-12T01:16:20.688Z",
"degraded": false,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"linearShortcutKcalPerDay": 370,
"linearShortcutValid": true,
"notChecked": [
"illness, pregnancy, lactation or growth, which change needs a lot",
"body condition (use the ideal weight for overweight animals)",
"…1 more"
],
"reasons": [
"RER is the energy a resting animal needs; actual daily needs multiply it by a life-stage factor (see /daily-energy).",
"The linear shortcut is valid from 2 to 45 kg."
],
"rerKcalPerDay": 393.6,
"rerKjPerDay": 1647,
"source": "computed locally (RER = 70 x kg^0.75; linear 30 x kg + 70 for 2 to 45 kg)",
"summary": "RER for 10 kg (22 lb) is about 394 kcal/day (linear shortcut 370).",
"verdict": "COMPUTED",
"weightKg": 10,
"weightLb": 22.05
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"unit": {
"description": "kg (default) or lb",
"type": "string"
},
"weight": {
"description": "Body weight (ideal or target weight for an overweight pet)",
"type": "number"
}
},
"required": [
"weight"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"linearShortcutKcalPerDay": {
"type": [
"null",
"number"
]
},
"linearShortcutValid": {
"type": [
"boolean",
"null"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"rerKcalPerDay": {
"type": [
"null",
"number"
]
},
"rerKjPerDay": {
"type": [
"null",
"number"
]
},
"source": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"verdict": {
"type": [
"null",
"string"
]
},
"weightKg": {
"type": [
"null",
"number"
]
},
"weightLb": {
"type": [
"null",
"number"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T23:44:10.905Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-11-01T23:44:10.692Z"
},
"resource": "https://pet-calc.x402tookit.com/resting-energy",
"serviceName": "Pet Care Calc",
"tags": [
"pets",
"rer",
"calories",
"veterinary-nutrition"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Resting energy requirement (RER) in kcal/day for a dog or cat from body weight, using 70 x kg^0.75 and the linear shortcut."
}What the leaf hashes
{"body":"f43bf6e7b48bc6489f8d584456526aa969eab8524cbb7abde4f6497fb6f19765","id":2201467,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646805622955,"prev":null,"subject":"x402_bazaar:https://pet-calc.x402tookit.com/resting-energy","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).
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- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af