← The evidence ledger
Evidence row 2201805
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://structural-calc.x402tookit.com/bolt-shear-bearing
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- d50db84b2e481ab2d8ee558bed5b3284722b1a3ff98b45b0c231ee4200e25f79
- Leaf
- 0xdf287113591ef7db64942027a2800d4fde0acbc1395522d4797ea5f5a9d00e6b
What was observed
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"name": "Structural and Beam Calculators",
"owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
"raw": {
"accepts": [
{
"amount": "20000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
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{
"amount": "20000",
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"scheme": "exact"
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{
"amount": "20000",
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{
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"network": "eip155:42161",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
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],
"description": "Screening shear and bearing capacity of one bolt from allowable stresses you state; not a code connection check.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"allowableBearingStress": 300,
"allowableShearStress": 150,
"appliedLoad": 40000,
"boltDiameter": 20,
"plateThickness": 10,
"shearPlanes": 1
},
"type": "http"
},
"output": {
"example": {
"appliedLoad": 40000,
"asOf": "2026-10-21T05:44:08.447Z",
"bearingCapacityPerBolt": 60000,
"boltArea": 314.159265,
"boltCount": 1,
"capacityPerBolt": 47123.8898,
"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.",
"governingMode": "bolt shear",
"notChecked": [
"EDUCATIONAL ESTIMATE, NOT ENGINEERING DESIGN: textbook closed-form formulas with idealised assumptions; no building-code or standard compliance check, no load or resistance factors, no safety verifica…",
"bolt tension, prying, combined shear and tension, slip-critical (friction) behaviour, pretension",
"…3 more"
],
"reasons": [
"Shear capacity = allowable shear stress x bolt area x shear planes; bearing capacity = allowable bearing stress x d x t. The smaller governs.",
"EDUCATIONAL ESTIMATE, NOT ENGINEERING DESIGN: textbook closed-form formulas with idealised assumptions; no building-code or standard compliance check, no load or resistance factors, no safety verifica…"
],
"shearCapacityPerBolt": 47123.8898,
"source": "bolt shear area pi d^2/4 times shear planes; bearing area d x t (textbook allowable-stress screening), computed locally",
"summary": "One 20 mm bolt (1 shear plane): shear 47123.8898, bearing 60000 N; bolt shear governs at 47123.8898; utilisation 0.848826363. Screening only.",
"totalCapacity": 47123.8898,
"units": {
"area": "mm2",
"density": "kg/m3",
"expansion": "1/degC",
"force": "N",
"inertia": "mm4",
"length": "mm",
"moment": "N*mm",
"sectionModulus": "mm3",
"stress": "MPa (N/mm2)",
"system": "si",
"temperature": "degC",
"torque": "N*mm",
"udl": "N/mm (= kN/m)"
},
"utilisation": 0.848826363,
"verdict": "WITHIN_STATED_ALLOWABLES",
"warning": "EDUCATIONAL ESTIMATE, NOT ENGINEERING DESIGN: textbook closed-form formulas with idealised assumptions; no building-code or standard compliance check, no load or resistance factors, no safety verifica…"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"allowableBearingStress": {
"description": "Allowable bearing stress on d x t of the plate (MPa or psi), YOU supply it",
"type": "number"
},
"allowableShearStress": {
"description": "Allowable shear stress on the bolt area (MPa or psi), YOU supply it from your own source",
"type": "number"
},
"appliedLoad": {
"description": "Optional total shear force (N or lbf) to compare with the capacity",
"type": "number"
},
"boltCount": {
"description": "Identical bolts sharing the load equally, 1 to 100 (default 1); equal sharing is an assumption",
"type": "integer"
},
"boltDiameter": {
"description": "Bolt diameter d (mm or in)",
"type": "number"
},
"plateThickness": {
"description": "Thinnest connected plate thickness t (mm or in) governing bearing",
"type": "number"
},
"shearPlanes": {
"description": "1 (single shear, default) or 2 (double shear)",
"type": "integer"
},
"units": {
"description": "si (default: mm, N, MPa, N*mm) or us (in, lbf, psi, in*lbf); every length, force, stress and modulus you send and receive uses that one system",
"type": "string"
}
},
"required": [
"boltDiameter",
"allowableShearStress",
"allowableBearingStress",
"plateThickness"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
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"type": "object"
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"output": {
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"properties": {
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"number"
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},
"asOf": {
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"null",
"string"
]
},
"bearingCapacityPerBolt": {
"type": [
"null",
"number"
]
},
"boltArea": {
"type": [
"null",
"number"
]
},
"boltCount": {
"type": [
"null",
"number"
]
},
"capacityPerBolt": {
"type": [
"null",
"number"
]
},
"degraded": {
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"null"
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},
"disclaimer": {
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},
"shearCapacityPerBolt": {
"type": [
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"number"
]
},
"source": {
"type": [
"null",
"string"
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},
"summary": {
"type": [
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"string"
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},
"totalCapacity": {
"type": [
"null",
"number"
]
},
"units": {
"properties": {
"area": {
"type": [
"null",
"string"
]
},
"density": {
"type": [
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"string"
]
},
"expansion": {
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"force": {
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]
},
"inertia": {
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},
"length": {
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"moment": {
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"sectionModulus": {
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"stress": {
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"system": {
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},
"temperature": {
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"torque": {
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},
"udl": {
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},
"type": [
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},
"utilisation": {
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"number"
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"string"
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"warning": {
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},
"lastUpdated": "2026-11-01T23:25:03.023Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-01T23:25:02.834Z"
},
"resource": "https://structural-calc.x402tookit.com/bolt-shear-bearing",
"serviceName": "Structural and Beam Calculators",
"tags": [
"bolt",
"shear",
"bearing",
"connection"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Screening shear and bearing capacity of one bolt from allowable stresses you state; not a code connection check."
}What the leaf hashes
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- Day root
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- Chained
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- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af