{
  "generated_at": "2026-04-24T15:01:35.625676+00:00",
  "slug": "3hcvxvrh-nx-link-postproof",
  "title": "Witness \u00b7 Merkle Proof Verification",
  "url": "https://3hcvxvrh.nx.link/postProof",
  "category": "tools",
  "summary": "Verifies Merkle proofs for blockchain data integrity, accepting leaf hash, index, and sibling hashes.",
  "seo": {
    "title": "Merkle Proof Verification API - x402 | Witness",
    "description": "Verify Merkle proofs via Witness API. $0.01 USDC per call. Cryptographic proof verification for blockchain data. Base network."
  },
  "use_cases": [
    "Verify inclusion proofs for blockchain transactions",
    "Validate Merkle tree membership for data integrity",
    "Confirm on-chain data authenticity without full node"
  ],
  "ideal_buyer": "Blockchain developers, oracle operators, and protocols requiring lightweight proof verification.",
  "example_prompt": "Verify this Merkle proof with leaf hash 0x97e7... and index 123456789",
  "example_request_body": {
    "leafHash": "0x97e78047a64a1bb484d69e3093ec34d9a0d13f682496bffa492626909df5efd3",
    "leafIndex": "123456789",
    "leftHashes": [
      "0x913de129895fa1b0ebe41dae5230ef93ce3991a546ccc0b61fc77eedc94b7561"
    ],
    "rightHashes": [
      "0xcd3144dd8a4811f4d614b958eaede6f4767ca81be898d7db89"
    ]
  },
  "risk_notes": [],
  "pricing_sanity": {
    "flag": "normal",
    "ratio": 0.333,
    "median_category_atomic": 30000
  },
  "pricing_review_required": false,
  "pricing_decimal_suspect": false,
  "trust_tier": "indexed_external",
  "accepts": [
    {
      "scheme": "exact",
      "network": "base",
      "pay_to": "0xcbbdecc1287ae7492d75318796b5b3f8cc464694",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "max_amount_required_atomic": "10000",
      "max_timeout_seconds": 300,
      "mime_type": "application/json",
      "description": "Witness API https://api.witness.co - POST postVerifyProof",
      "verified": false,
      "hints": {
        "responses": {
          "200": {
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "required": [
                    "success"
                  ],
                  "properties": {
                    "success": {
                      "type": "boolean",
                      "description": "Whether or not the proof is valid."
                    }
                  },
                  "additionalProperties": false
                },
                "example": {
                  "success": true
                }
              }
            },
            "description": "Successful response"
          },
          "default": {
            "$ref": "#/components/responses/error"
          }
        },
        "parameters": [],
        "requestBody": {
          "content": {
            "application/json": {
              "schema": {
                "type": "object",
                "required": [
                  "targetRootHash",
                  "leafHash",
                  "leafIndex"
                ],
                "properties": {
                  "leafHash": {
                    "type": "string",
                    "description": "Leaf hash"
                  },
                  "leafIndex": {
                    "type": "string",
                    "description": "Leaf index"
                  },
                  "leftHashes": {
                    "type": "array",
                    "items": {
                      "type": "string"
                    },
                    "maxItems": 256,
                    "description": "Left hashes of the proof"
                  },
                  "rightHashes": {
                    "type": "array",
                    "items": {
                      "type": "string"
                    },
                    "maxItems": 256,
                    "description": "Right hashes of the proof"
                  },
                  "targetRootHash": {
                    "type": "string",
                    "description": "Target root hash for the proof"
                  }
                },
                "description": "Left, right, and target root information, comprising the proof for the given leaf hash.",
                "additionalProperties": false
              },
              "example": {
                "leafHash": "0x97e78047a64a1bb484d69e3093ec34d9a0d13f682496bffa492626909df5efd3",
                "leafIndex": "123456789",
                "leftHashes": [
                  "0x913de129895fa1b0ebe41dae5230ef93ce3991a546ccc0b61fc77eedc94b7561",
                  "0x71cecc95b857ccba01444c5544beea598a9429b012a8e9ae42fd89779dd20ca3"
                ],
                "rightHashes": [
                  "0xcd3144dd8a4811f4d614b958eaede6f4767ca81be898d7db89748980d4aa6b4b",
                  "0xd7e11a1efabac0f144ca21c774c7a47830eccd2ea310142e5193d2599ec044ee"
                ],
                "targetRootHash": "0x48c4282d0c69c8fd2ab1baee99ae06f758f55d710efd1902d955a02cb1deb3d6"
              }
            }
          },
          "required": true
        }
      }
    }
  ],
  "duplicate_cluster_id": "finance-cl-0de9882429f3",
  "origin": {
    "slug": "3hcvxvrh-nx-link",
    "host": "3hcvxvrh.nx.link",
    "url": "https://3hcvxvrh.nx.link"
  },
  "json_ld": {
    "@id": "https://x402all.com/resource/3hcvxvrh-nx-link-postproof",
    "url": "https://x402all.com/resource/3hcvxvrh-nx-link-postproof",
    "name": "Witness \u00b7 Merkle Proof Verification",
    "@type": "WebAPI",
    "offers": {
      "url": "https://x402all.com/resource/3hcvxvrh-nx-link-postproof",
      "@type": "Offer",
      "price": "0.01",
      "availability": "https://schema.org/InStock",
      "priceCurrency": "USDC",
      "priceSpecification": {
        "@type": "UnitPriceSpecification",
        "price": "0.010000",
        "unitText": "call",
        "priceCurrency": "USDC"
      },
      "eligibleCustomerType": "Agent",
      "additionalProperty": [
        {
          "@type": "PropertyValue",
          "name": "paymentNetwork",
          "value": "base"
        },
        {
          "@type": "PropertyValue",
          "name": "paymentAsset",
          "value": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
        }
      ]
    },
    "sameAs": "https://3hcvxvrh.nx.link/postProof",
    "@context": "https://schema.org",
    "provider": {
      "@id": "https://x402all.com/server/3hcvxvrh-nx-link",
      "url": "https://3hcvxvrh.nx.link",
      "name": "3hcvxvrh.nx.link",
      "@type": "Organization"
    },
    "identifier": "3hcvxvrh-nx-link-postproof",
    "description": "Verify Merkle proofs via Witness API. $0.01 USDC per call. Cryptographic proof verification for blockchain data. Base network.",
    "potentialAction": {
      "@type": "BuyAction",
      "target": "https://axon402.com/test-buy?resource=3hcvxvrh-nx-link-postproof",
      "description": "Test-buy this endpoint on AXON"
    },
    "applicationCategory": "tools"
  },
  "axon_deep_link": "https://axon402.com/test-buy?resource=3hcvxvrh-nx-link-postproof"
}