← The evidence ledger
Evidence row 2201587
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://math-geometry.x402tookit.com/triangle-solve
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 6f53cdfb3323187c5b1b74053c656b702cbde5620fe21637af956612e78ea0e0
- Leaf
- 0x436437aac8d16cde6e64081ecb87920def533b79e81d73c484ded66b9f5f19fa
What was observed
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"owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
"raw": {
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],
"description": "Solve a triangle from any three of sides a, b, c and angles A, B, C (degrees), incl. ambiguous SSA, with area and radii.",
"extensions": {
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"asOf": "2026-10-11T08:51:20.158Z",
"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.",
"method": "SSS (law of cosines)",
"notChecked": [
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"spherical or non-Euclidean triangles"
],
"reasons": [
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"Law of cosines: c^2 = a^2 + b^2 - 2ab cos C. Law of sines: a / sin A = b / sin B = c / sin C. Heron's formula gives the area."
],
"solutionCount": 1,
"solutions": [
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"C": 90
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],
"source": "computed locally",
"summary": "SSS (law of cosines): sides 3, 4, 5; angles 36.86989765, 53.13010235, 90 deg; area 6 (right, scalene).",
"verdict": "SOLVED"
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},
"resource": "https://math-geometry.x402tookit.com/triangle-solve",
"serviceName": "Algebra and Geometry Solvers",
"tags": [
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"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Solve a triangle from any three of sides a, b, c and angles A, B, C (degrees), incl. ambiguous SSA, with area and radii."
}What the leaf hashes
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Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).
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- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af