← The evidence ledger
Evidence row 2201335
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://shipping-calc.x402tookit.com/unit-price
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 367e54109675e3583e98bd4b96c6207f1435b6b1e1e48faaf267f36b79498d95
- Leaf
- 0x48ee27b20ad5232b8fa3534ddd3693dacb87ab8842572a38dc1aa7426923aeec
What was observed
{
"endpoints": [
[
"x402",
"https://shipping-calc.x402tookit.com/unit-price"
]
],
"name": "Shipping & Logistics 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": "Compare package sizes by price per 100 g, 100 ml or per item across mixed units, ranked with savings.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"items": "[{\"name\":\"Small\",\"price\":4,\"amount\":16,\"unit\":\"oz\"},{\"name\":\"Large\",\"price\":3.8,\"amount\":1,\"unit\":\"lb\"},{\"name\":\"Bulk\",\"price\":7,\"amount\":500,\"unit\":\"g\"}]"
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-11T23:32:57.211Z",
"bestName": "Large",
"bestPricePerStandardUnit": 0.8378,
"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.",
"notChecked": [
"coupons, loyalty prices, tax and deposits",
"quality, brand, shelf life or waste",
"…1 more"
],
"ranked": [
{
"amount": 1,
"name": "Large",
"price": 3.8,
"pricePerStandardUnit": 0.8378,
"unit": "lb"
},
{
"amount": 16,
"name": "Small",
"price": 4,
"pricePerStandardUnit": 0.8818,
"unit": "oz"
}
],
"reasons": [
"All prices converted to a standard unit: per 100 g."
],
"savingsBestVsWorstPercent": 40.2,
"source": "computed locally (exact unit definitions)",
"standardUnit": "100 g",
"summary": "Best value is Large at 0.8378 per 100 g, 40.2% cheaper than Bulk.",
"verdict": "BEST_FOUND",
"worstName": "Bulk"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"items": {
"description": "JSON array of 2 to 20 objects like {\"name\":\"A\",\"price\":3.99,\"amount\":16,\"unit\":\"oz\"}; units g kg oz lb ml l floz pt qt gal ct m ft yd",
"type": "string"
}
},
"required": [
"items"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"bestName": {
"type": [
"null",
"string"
]
},
"bestPricePerStandardUnit": {
"type": [
"null",
"number"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"ranked": {
"items": {
"properties": {
"amount": {
"type": [
"null",
"number"
]
},
"name": {
"type": [
"null",
"string"
]
},
"price": {
"type": [
"null",
"number"
]
},
"pricePerStandardUnit": {
"type": [
"null",
"number"
]
},
"unit": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"savingsBestVsWorstPercent": {
"type": [
"null",
"number"
]
},
"source": {
"type": [
"null",
"string"
]
},
"standardUnit": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"verdict": {
"type": [
"null",
"string"
]
},
"worstName": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-02T04:05:34.049Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-11-02T04:05:33.892Z"
},
"resource": "https://shipping-calc.x402tookit.com/unit-price",
"serviceName": "Shipping & Logistics Calc",
"tags": [
"unit-price",
"shopping",
"compare",
"price"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Compare package sizes by price per 100 g, 100 ml or per item across mixed units, ranked with savings."
}What the leaf hashes
{"body":"367e54109675e3583e98bd4b96c6207f1435b6b1e1e48faaf267f36b79498d95","id":2201335,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646803458051,"prev":null,"subject":"x402_bazaar:https://shipping-calc.x402tookit.com/unit-price","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).
- 0x48ee298367ebf7bec6065e046693931a5153a67f6191b8ead91b9c5518f15141
- 0xe93b507918d1da149e63ef6704f863f0b82ee10d160762b1b802b48ae9915a55
- 0x8594136f2f365c3f77adf73b797e74e0bb90d8f44ceb7f5c13457081100cdbeb
- 0xef35944508d75897a1f074866ca087fc1d3e46eb9428894fb36e53b30eb9457e
- 0xc5f7b7c9f857a474ad56aaaa2fb557933d1678efedbc867073a2a2540a442cc2
- 0x7b82c34d394976948386b939cf4dcfe87ce52e705fe722a9637c2482b721c84f
- 0x545212fb0bc50fb6fe3e150fc65bc6a473eb6c12343fb1e5fd22b43491c856b6
- 0x824248f11b237730aca21861dfd218d63bba82811267ce96539c397992420faf
- 0x79fbdb86fc65e081d7427d2a495e663a77f1151a0da1a3e49dbf1731097163df
- 0xac6d951c5efee553d23f7771b3fe3f7731a554334ca2452ecff690aa53ab32c6
- 0xbcd5e685c0a2acfe1a8a257e02dd8901ec54673d2856b455aef8f6e30e7d6de7
- 0x9a1ec04cde3d9cc0841a4ecec0c42382183aa9beb179e075a86323d4b9f1e562
- 0xa3336de478ff1096fe3a4c0522656d3a2923e8e721fe01f8fd137ddc7734c22e
- 0xdc58bc56b35577036d6185abcf0d4c91a45df10bd65f767505c1d43fcecde566
- 0x3217f821997a6d778dcf0814a25b1296c55ab77710c675e7b15695d25a6ce67d
- 0x8760c227928c5295506cd8606e763f86cf8cd2a549820fab4dc86d29ca0d816d
- 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
- 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
- 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af