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Evidence row 2829

Observed , by baseline/1.

Kind
listing
About
source_record agentic_market:matrix-openverbs-com
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
b032c309e81b926862bc256fb62359d0b9b88c816652ca64a0f6e1d3706c78f8
Leaf
0x6d74165a6d80d022ef73edd00b78f7c5cf5c33de37d5bfbbf569423e3f36d9ad

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://matrix.openverbs.com/v1/determinant"
    ],
    [
      "x402",
      "https://matrix.openverbs.com/v1/inverse"
    ],
    [
      "x402",
      "https://matrix.openverbs.com/v1/multiply"
    ],
    [
      "x402",
      "https://matrix.openverbs.com/v1/solve"
    ],
    [
      "x402",
      "https://matrix.openverbs.com/v1/transpose"
    ]
  ],
  "name": "matrix.openverbs.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "matrix.openverbs.com",
    "endpoints": [
      {
        "description": "Compute the determinant of a square matrix via Gaussian elimination with partial pivoting. A non-square, ragged or empty matrix is a clean 400; a singular matrix simply returns 0.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": [],
            "group": "body",
            "name": "matrix",
            "required": false,
            "type": "array"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "3"
        },
        "serviceName": "Determinant",
        "tags": [
          "matrix determinant",
          "compute determinant",
          "square matrix determinant",
          "gaussian elimination determinant",
          "determinant api"
        ],
        "url": "https://matrix.openverbs.com/v1/determinant"
      },
      {
        "description": "Invert a square matrix via Gauss-Jordan elimination. A non-square, ragged or empty matrix is a clean 400. A singular (non-invertible) matrix is NOT an error — it returns a successful { invertible:false, inverse:null }.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": [],
            "group": "body",
            "name": "matrix",
            "required": false,
            "type": "array"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "Invert a matrix",
        "tags": [
          "matrix inverse",
          "invert matrix",
          "inverse matrix api",
          "gauss jordan inverse",
          "check matrix invertible"
        ],
        "url": "https://matrix.openverbs.com/v1/inverse"
      },
      {
        "description": "Multiply two matrices A·B. The inner dimensions must agree (columns of A equal rows of B); a mismatch or a ragged/empty matrix is a clean 400.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": [],
            "group": "body",
            "name": "a",
            "required": false,
            "type": "array"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": [],
            "group": "body",
            "name": "b",
            "required": false,
            "type": "array"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "Multiply matrices",
        "tags": [
          "matrix multiplication",
          "multiply matrices",
          "linear algebra multiply",
          "matrix product api",
          "compute a dot b"
        ],
        "url": "https://matrix.openverbs.com/v1/multiply"
      },
      {
        "description": "Solve the linear system A·x = b for a square coefficient matrix A and vector b via Gaussian elimination with partial pivoting. A non-square A or a b of the wrong length is a clean 400. A singular system is NOT an error — it returns a successful { solvable:false, solution:null }.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": [],
            "group": "body",
            "name": "a",
            "required": false,
            "type": "array"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": [],
            "group": "body",
            "name": "b",
            "required": false,
            "type": "array"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Solve a linear system",
        "tags": [
          "solve linear system",
          "linear equation solver",
          "matrix solve ax b",
          "gaussian elimination solver",
          "solve coefficients vector"
        ],
        "url": "https://matrix.openverbs.com/v1/solve"
      },
      {
        "description": "Transpose a matrix, swapping rows and columns. A ragged/empty matrix is a clean 400.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": [],
            "group": "body",
            "name": "matrix",
            "required": false,
            "type": "array"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "Transpose a matrix",
        "tags": [
          "transpose matrix",
          "swap matrix rows columns",
          "matrix transpose api",
          "flip matrix axes",
          "convert rows to columns"
        ],
        "url": "https://matrix.openverbs.com/v1/transpose"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "matrix-openverbs-com",
    "integrationType": "",
    "isNew": false,
    "name": "matrix.openverbs.com",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.004",
      "currency": "USDC",
      "maxAmount": "0.004",
      "minAmount": "0.004"
    },
    "provider": "matrix.openverbs.com",
    "providerUrl": "",
    "serviceName": "",
    "tags": [
      "matrix determinant",
      "compute determinant",
      "square matrix determinant",
      "gaussian elimination determinant",
      "determinant api",
      "matrix inverse",
      "invert matrix",
      "inverse matrix api",
      "gauss jordan inverse",
      "check matrix invertible",
      "matrix multiplication",
      "multiply matrices",
      "linear algebra multiply",
      "matrix product api",
      "compute a dot b",
      "solve linear system",
      "linear equation solver",
      "matrix solve ax b",
      "gaussian elimination solver",
      "solve coefficients vector",
      "transpose matrix",
      "swap matrix rows columns",
      "matrix transpose api",
      "flip matrix axes",
      "convert rows to columns"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"b032c309e81b926862bc256fb62359d0b9b88c816652ca64a0f6e1d3706c78f8","id":2829,"kind":"listing","method":"baseline/1","observed_us":1793025267338954,"prev":null,"subject":"agentic_market:matrix-openverbs-com","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).

  1. 0x6d74a9f55adb3dd9080d4cd7d6264f8aa93d25e1441cc8c8c6daa58495d483ef
  2. 0x8c0d1ffce7d4d983f32391e7596e9cd54edfd68d86a33ff779472d2510e990d8
  3. 0xf10f0453f437c4e7bf2e50f06edb6972b6014dc7e69c65c1b56535757479c496
  4. 0xb0f6f102ff93dd557ce417f4060fbecd0b99e378dbdeedf205d1d0d5bfe9c2b2
  5. 0x721aa16f2265aef2fb4cd4db07654a6c05b35f89e67df92f94944d1862c397e7
  6. 0x81de88154a1718c49ad228e337afa658b8dc364cbdc188b3c049a304e45bce39
  7. 0x159f61355c20b88c536469d12f1ac729445fbc61400f9060fd1b3337e0554510
  8. 0x2a6da729da9cecc568cbb9352d9ef48284d5333482269abb43a63501c4153387
  9. 0x0e73789be7c40cfc0ff942e36c98ca89369b26c9056ecb17c09cfe774720d480
  10. 0xd436881f2f0c7eba4a0a8b847ff798d53394f793d9cffd7bdf04f6a3d5c2f8be
  11. 0x82b0a13483194285c0c386d5ad47eb953493b28955a9a8e58da3a2e6e220ed30
  12. 0x929b3f59cbf01edbae456522161805dd51e098dc3a66d845508de46581bb953c
  13. 0x9dc4d6f64bc3c323d2c45a28209068cd473b6979bd632a0d694bf94d19bc39df
  14. 0xfc9b5a81a7a83a1c735a4fe64590beb9db14d2366f463161358af28c3ea9a81d
  15. 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
  16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
  17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON