← The evidence ledger
Evidence row 2202020
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://css-design-calc.x402tookit.com/clamp-fluid
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- bca1df8898ad143d7efc19642386330fab0dc3f92a89c2b462bf78eb0509f4df
- Leaf
- 0xdc74ab4797085434ac5d0c61f8543dca81f313730a7763062d00a9f3b4f48cb7
What was observed
{
"endpoints": [
[
"x402",
"https://css-design-calc.x402tookit.com/clamp-fluid"
]
],
"name": "CSS Design 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": "Generate a CSS clamp() that scales a size linearly between a min and max viewport width, in rem, with the exact slope.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"maxSize": 24,
"maxViewport": 1200,
"minSize": 16,
"minViewport": 320,
"rootPx": 16
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-11T14:32:43.131Z",
"css": "clamp(1rem, 0.8182rem + 0.9091vw, 1.5rem)",
"cssInPx": "clamp(16px, 13.0909px + 0.9091vw, 24px)",
"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.",
"evaluatedAtViewport": null,
"interceptPx": 13.09090909,
"interceptRem": 0.81818182,
"maxRem": 1.5,
"minRem": 1,
"notChecked": [
"user zoom and text-only zoom: using rem plus vw keeps text resizable, but a viewport-only value would not (WCAG 1.4.4 needs zoom to still scale text)",
"container width: the slope is in vw, so it follows the viewport, not the component",
"…1 more"
],
"reasons": [
"Slope 0.909091vw; intercept 13.090909px (0.818182rem).",
"Below the minimum viewport the size stays at the minimum, above the maximum viewport it stays at the maximum."
],
"rootPx": 16,
"sizeAtMidpointPx": 20,
"sizeAtViewportPx": null,
"slopeVw": 0.90909091,
"source": "Linear interpolation; the clamp() form follows CSS Values and Units Level 4, computed locally",
"summary": "clamp(1rem, 0.8182rem + 0.9091vw, 1.5rem): 16px at 320px wide to 24px at 1200px.",
"verdict": "COMPUTED"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"at": {
"description": "Optional viewport width in px to evaluate the result at",
"type": "number"
},
"maxSize": {
"description": "Size at the maximum viewport, in px",
"type": "number"
},
"maxViewport": {
"description": "Viewport width where scaling ends, px (default 1200)",
"type": "number"
},
"minSize": {
"description": "Size at the minimum viewport, in px",
"type": "number"
},
"minViewport": {
"description": "Viewport width where scaling starts, px (default 320)",
"type": "number"
},
"rootPx": {
"description": "Root font size in px for the rem output (default 16)",
"type": "number"
}
},
"required": [
"minSize",
"maxSize"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"css": {
"type": [
"null",
"string"
]
},
"cssInPx": {
"type": [
"null",
"string"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"evaluatedAtViewport": {},
"interceptPx": {
"type": [
"null",
"number"
]
},
"interceptRem": {
"type": [
"null",
"number"
]
},
"maxRem": {
"type": [
"null",
"number"
]
},
"minRem": {
"type": [
"null",
"number"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"rootPx": {
"type": [
"null",
"number"
]
},
"sizeAtMidpointPx": {
"type": [
"null",
"number"
]
},
"sizeAtViewportPx": {},
"slopeVw": {
"type": [
"null",
"number"
]
},
"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": "2026-11-01T22:46:36.774Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-11-01T22:46:36.476Z"
},
"resource": "https://css-design-calc.x402tookit.com/clamp-fluid",
"serviceName": "CSS Design Calc",
"tags": [
"css",
"clamp",
"fluid-typography",
"responsive"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Generate a CSS clamp() that scales a size linearly between a min and max viewport width, in rem, with the exact slope."
}What the leaf hashes
{"body":"bca1df8898ad143d7efc19642386330fab0dc3f92a89c2b462bf78eb0509f4df","id":2202020,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646811378217,"prev":null,"subject":"x402_bazaar:https://css-design-calc.x402tookit.com/clamp-fluid","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).
- 0xdc74b67f2474a8a3d31f1d73471d9656ed96d0f5ac5260b35b86bed6fc9297fd
- 0x34ddc61a4a90f430b3821a45be151b9c869cdb64d66460dffc98e3836b4f1828
- 0xb0f2c92fe24c9ed979fc3c03ec59461a7df769c81f26f1d35c3cf595bef22517
- 0xea9172f586f6d2bcf7fac7e16d2591136c7376b749b03ecf3169a2fe58109f8a
- 0xcb08575ffb31f7486e4497884017326fe38054cfb3858d3845889d34f356346c
- 0x7e431f9d31ab3bc323bc7951cb8913ff3e495806db5875e7199dc9108bb59d75
- 0xe085bf3cebcd965d865641f9f17461a3dcd4f775f11732490b89e3da51508f13
- 0x924388b4cba64ca98a24f3e329f94b08a53ad9dfbb1a7c17351e179d85843057
- 0x4cef77b290c198b86903013a9f19a7ce8cf1e89e94b52960061bd0887ca72f25
- 0x2395f0e36eb43dba7bc42dba256a5667e6054198ba75bebdf99ef8f9f43954d0
- 0xca294ce0f50d6846844820d7c7821b58e97713a6b9b072bb6a5bbaffef4f2708
- 0x01a0fcfad157f65c9dfed12bdf21e0b3759daa967023093e05700338fea51d1c
- 0x4d734793ac74750cbdf1c30c6305a901fe0ac2ddf5819c226b382460e68290cd
- 0xaed7c1080b4ff0b1fc4f851df0f2b8b4ef86b106015aa3aaf8da39a641c41a3d
- 0xa370e8e015a32408a8112e54e5f40a8a65e871bd52bbc6f25fbd1139f2ba5b11
- 0x7ddefa7d79e7640c3fed21ee4472689415182c41a0258ab04a81d60495f4c40a
- 0xdb8bd933619a267f9790faac9839143d202be46af284371cc369cdf683f897ba
- 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af