← The evidence ledger
Evidence row 2201487
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://paper-print-calc.x402tookit.com/envelope-fit
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 88f85e93f463448d5657ef117f070002a0365e9f0237f4f185a1b05e03d3ee4f
- Leaf
- 0xbaece77c63d26713650fb733ab3b17e38e6462def800d6be3287d1880e3bd5a4
What was observed
{
"endpoints": [
[
"x402",
"https://paper-print-calc.x402tookit.com/envelope-fit"
]
],
"name": "Paper & Print 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": "Which standard envelopes (#10, A2, A7, C5, DL, C6 and more) hold a card or folded sheet, with the margin left over.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"height": 7,
"unit": "in",
"width": 5
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-12T01:48:14.146Z",
"clearanceInches": 0.125,
"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.",
"envelopesChecked": 15,
"fits": [
{
"envelope": "a7",
"marginPerSideInches": 0.125,
"sizeInches": [
5.25,
7.25
],
"sizeMm": [
133.4,
184.1
]
},
{
"envelope": "a9",
"marginPerSideInches": 0.375,
"sizeInches": [
5.75,
8.75
],
"sizeMm": [
146,
222.3
]
}
],
"notChecked": [
"thickness of a bulky piece or insert",
"postal size and weight rules (check your post office)",
"…1 more"
],
"pieceInches": [
5,
7
],
"reasons": [
"Both orientations of the piece are tried; a larger gap per side means a looser fit."
],
"snuggestFit": "a7",
"source": "computed locally (envelope sizes, both orientations)",
"summary": "7 envelope(s) hold it; snuggest: a7 (0.125 in a side).",
"verdict": "FITS"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"clearance": {
"description": "Minimum gap on every side, in the same unit (default 0.125 in, or 3 mm)",
"type": "number"
},
"height": {
"description": "Height of the piece",
"type": "number"
},
"unit": {
"description": "in (default) or mm",
"type": "string"
},
"width": {
"description": "Width of the flat or folded piece",
"type": "number"
}
},
"required": [
"width",
"height"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"clearanceInches": {
"type": [
"null",
"number"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"envelopesChecked": {
"type": [
"null",
"number"
]
},
"fits": {
"items": {
"properties": {
"envelope": {
"type": [
"null",
"string"
]
},
"marginPerSideInches": {
"type": [
"null",
"number"
]
},
"sizeInches": {
"items": {
"type": "number"
},
"type": [
"array",
"null"
]
},
"sizeMm": {
"items": {
"type": "number"
},
"type": [
"array",
"null"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"pieceInches": {
"items": {
"type": "number"
},
"type": [
"array",
"null"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"snuggestFit": {
"type": [
"null",
"string"
]
},
"source": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T23:42:37.855Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-11-01T23:42:37.676Z"
},
"resource": "https://paper-print-calc.x402tookit.com/envelope-fit",
"serviceName": "Paper & Print Calc",
"tags": [
"envelope",
"mailing",
"cards",
"invitations"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Which standard envelopes (#10, A2, A7, C5, DL, C6 and more) hold a card or folded sheet, with the margin left over."
}What the leaf hashes
{"body":"88f85e93f463448d5657ef117f070002a0365e9f0237f4f185a1b05e03d3ee4f","id":2201487,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646805693535,"prev":null,"subject":"x402_bazaar:https://paper-print-calc.x402tookit.com/envelope-fit","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).
- 0xbaecc713738954cf84bca4e1e6fab209f89f45fa9aaa0efedcd65bf2194c61a5
- 0xd70834cca77bd7616c111984ce7afd58efa779a0b848c84fc27b14e9d61c194f
- 0xb21acb16fe5307ee7249301f137cd906a61557291b504d58fd540c357d63aebb
- 0x1db3d423c66234699d76f1481a0994080a9a509609cd3db51e0d54fd93c3896e
- 0x0eb1c9ded3f4fc6d2a739e82641f3bef6fc1cb1e35ce5d8c0f86dfb0cb7b3070
- 0x308b6fdcb84baf285944501a3281aae50705760aed746c75ebeb0e4c0d59ca07
- 0x892564e3057ba8d74243ebf9a854365ac10b99ea61e12b44834e75fff2c3a7b6
- 0xcb29907f2fcfe161a6a6589ff510d9a55e774de81cf575416da27959a2d35c83
- 0x3aecef9ee0d72fec14fdf4580f65b9cb0f97a91e9bd3c1431bdf3025f654ec08
- 0xf10cd4a13671a2445b30b3b4405b279a8fdae1e80f377f066c65724d36c9ca47
- 0xe6b44ecdb75ff120484734db6904b7ebd6bf31aeb34bacac46b7665ead9f0f99
- 0x83d46cc9a78a5c717b4bb87ce4b38231f8d8a40ecf7e32a81f31d861b83a0b87
- 0x626fb5c7d656fa8c4ab162a898cfff0f195757f6cb547860059c20e431ef93c9
- 0xc1d961be09ff84253ce4ecf4b141b3c25631ce9eb1cc0a3197e5d83d03240ee4
- 0x834b6b9a36b42da183e2542785e8d2d7548ace455268a81922edbe6020cef644
- 0x2922573a524a0694086782ac45fa3083d3fc3f6a2a479b2105e1e2f06b2916f7
- 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
- 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af