← The evidence ledger
Evidence row 2202035
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://craft-calc.x402tookit.com/quilt-binding
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- f01afa9c5ea955aac6c58609aa4ce820c2a1efea2aa90e0b61e765c647691e1a
- Leaf
- 0xad1ae39b7f77aa5110692292432640e7430f8a831255657feaef3fe57fc8b5ee
What was observed
{
"endpoints": [
[
"x402",
"https://craft-calc.x402tookit.com/quilt-binding"
]
],
"name": "Craft & Maker 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": "Binding strips and fabric yardage for a quilt from its size, strip width and fabric width, rounded up to 1/8 yard.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"lengthInches": 72,
"widthInches": 60
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-12T01:13:48.104Z",
"bindingLengthNeededInches": 274,
"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": [
"bias-cut binding, which needs more fabric",
"seam allowances beyond the extra length you give",
"…1 more"
],
"perimeterInches": 264,
"reasons": [
"Perimeter 264 in plus 10 in extra = 274 in; 40 in is usable per strip after selvages."
],
"source": "computed locally (perimeter / usable strip length)",
"stripWidthInches": 2.5,
"stripsToCut": 7,
"summary": "7 strip(s) of 2.5 in by 40 in make 274 in of binding: buy 0.5 yard(s).",
"usableStripLengthInches": 40,
"verdict": "COMPUTED",
"yardsExact": 0.4861,
"yardsToBuy": 0.5
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"extraInches": {
"description": "Extra length for corners and joining (default 10)",
"type": "number"
},
"fabricWidthInches": {
"description": "Fabric width off the bolt in inches (default 44)",
"type": "number"
},
"lengthInches": {
"description": "Quilt length in inches",
"type": "number"
},
"stripWidthInches": {
"description": "Cut width of each binding strip in inches (default 2.5)",
"type": "number"
},
"widthInches": {
"description": "Quilt width in inches",
"type": "number"
}
},
"required": [
"widthInches",
"lengthInches"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"bindingLengthNeededInches": {
"type": [
"null",
"number"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"perimeterInches": {
"type": [
"null",
"number"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"stripWidthInches": {
"type": [
"null",
"number"
]
},
"stripsToCut": {
"type": [
"null",
"number"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"usableStripLengthInches": {
"type": [
"null",
"number"
]
},
"verdict": {
"type": [
"null",
"string"
]
},
"yardsExact": {
"type": [
"null",
"number"
]
},
"yardsToBuy": {
"type": [
"null",
"number"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T22:45:52.844Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-11-01T22:45:52.679Z"
},
"resource": "https://craft-calc.x402tookit.com/quilt-binding",
"serviceName": "Craft & Maker Calc",
"tags": [
"quilting",
"binding",
"yardage",
"fabric"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Binding strips and fabric yardage for a quilt from its size, strip width and fabric width, rounded up to 1/8 yard."
}What the leaf hashes
{"body":"f01afa9c5ea955aac6c58609aa4ce820c2a1efea2aa90e0b61e765c647691e1a","id":2202035,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646811434389,"prev":null,"subject":"x402_bazaar:https://craft-calc.x402tookit.com/quilt-binding","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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- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af