{
  "x402Version": 2,
  "id": 59750,
  "slug": "59750",
  "resource": "https://khotem.com/api/seal",
  "description": "SEAL: witnessed cryptographic stamp + timestamp. POST body: {\"content\":\"...\"} (hashed and forgotten) or {\"hash\":\"<sha256 hex>\"} — content never leaves your machine. Returns seal_stamp + payment_seal.",
  "type": "http",
  "resourceType": "Utilities",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xE61c2359F1539b15F092AADbAC332cf033767aec",
      "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
      "amount": "50000",
      "amountUsd": 0.05,
      "maxTimeoutSeconds": 60
    },
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xE61c2359F1539b15F092AADbAC332cf033767aec",
      "asset": "0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb",
      "amount": "50000000000000000",
      "maxTimeoutSeconds": 60
    },
    {
      "scheme": "exact",
      "network": "eip155:137",
      "payTo": "0xE61c2359F1539b15F092AADbAC332cf033767aec",
      "asset": "0x3c499c542cef5e3811e1192ce70d8cc03d5c3359",
      "amount": "50000",
      "amountUsd": 0.05,
      "maxTimeoutSeconds": 60
    },
    {
      "scheme": "exact",
      "network": "eip155:137",
      "payTo": "0xE61c2359F1539b15F092AADbAC332cf033767aec",
      "asset": "0x8f3Cf7ad23Cd3CaDbD9735AFf958023239c6A063",
      "amount": "50000000000000000",
      "maxTimeoutSeconds": 60
    },
    {
      "scheme": "exact",
      "network": "eip155:59144",
      "payTo": "0xE61c2359F1539b15F092AADbAC332cf033767aec",
      "asset": "0x176211869ca2b568f2a7d4ee941e073a821ee1ff",
      "amount": "50000",
      "maxTimeoutSeconds": 60
    },
    {
      "scheme": "exact",
      "network": "eip155:324",
      "payTo": "0xE61c2359F1539b15F092AADbAC332cf033767aec",
      "asset": "0x1d17cbcf0d6d143135ae902365d2e5e2a16538d4",
      "amount": "50000",
      "maxTimeoutSeconds": 60
    },
    {
      "scheme": "exact",
      "network": "eip155:534352",
      "payTo": "0xE61c2359F1539b15F092AADbAC332cf033767aec",
      "asset": "0x06efdbff2a14a7c8e15944d1f4a48f9f95f663a4",
      "amount": "50000",
      "maxTimeoutSeconds": 60
    },
    {
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "AMYmNkTwwbfV5xAQzhAAmktWDCfJpg1UXn2yX2jHJB8Z",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "amount": "50000",
      "amountUsd": 0.05,
      "maxTimeoutSeconds": 60
    }
  ],
  "outputSchema": {
    "properties": {
      "example": {
        "type": "object"
      },
      "type": {
        "type": "string"
      }
    },
    "required": [
      "type"
    ],
    "type": "object"
  },
  "extensions": {
    "bazaar": {
      "category": "developer-tools",
      "discoverable": true,
      "info": {
        "input": {
          "body": {
            "content": "Hello, KHOTEM",
            "hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
          },
          "bodyType": "json",
          "method": "POST",
          "type": "http"
        },
        "output": {
          "example": {
            "note": "content not stored: hashed and forgotten",
            "payment_seal": "1020304050607080",
            "proof": "recorded in the KHOTEM ledger; verifiable via /api/attest",
            "seal_stamp": "a1b2c3d4e5f60708",
            "sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
            "timestamp": "2026-08-24T12:00:00.000Z",
            "witness": "KHOTEM-SEAL"
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "body": {
                "description": "Provide either content (server hashes and forgets it) or hash (client-side sha256, content never sent).",
                "properties": {
                  "content": {
                    "description": "Content to hash and seal",
                    "type": "string"
                  },
                  "hash": {
                    "description": "Pre-computed sha256 hex (64 chars)",
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      },
      "tags": [
        "receipts",
        "attestation",
        "audit",
        "x402",
        "ai-agents"
      ]
    },
    "builderCode": {
      "code": "bc_l38pwyuh",
      "registry": "base-builder-codes",
      "schema": "erc-8021-schema-2"
    },
    "conveyor": {
      "entry": "/api/seal/free",
      "note": "new here? first room is a free taste - your wallet is your account, no sign-up",
      "price_usdc": 0.01
    },
    "khotemSeal": {
      "info": {
        "description": "Every paid answer carries a KHOTEM seal (payment_seal): a ledger-anchored, independently verifiable stamp of this exact call. Verify any stamp via POST /api/attest ($0.10) or free precheck POST /api/attest/check.",
        "free_precheck": "POST /api/attest/check {\"ref\": \"…\"}",
        "verify": "POST /api/attest {\"ref\": \"<payment_seal or sha256>\"}"
      }
    },
    "knock": {
      "first_seen": "2026-10-13T21:55:36.765Z",
      "note": "first room is a free taste: POST /api/seal/free - your wallet is your account, no sign-up",
      "price_usdc": 0.05,
      "this_route_knocks": 1,
      "your_knocks": 1
    }
  },
  "tags": [
    "bazaar",
    "builderCode",
    "conveyor",
    "khotemSeal",
    "knock"
  ],
  "sourceHost": "khotem.com",
  "lastUpdated": "2026-10-13T21:55:36.853Z",
  "quality": {
    "calls30d": 1,
    "uniquePayers30d": 1,
    "lastCalledAt": "2026-10-13T21:55:36.256Z"
  },
  "metadata": {
    "extensions": {
      "bazaar": {
        "category": "developer-tools",
        "discoverable": true,
        "info": {
          "input": {
            "body": {
              "content": "Hello, KHOTEM",
              "hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "note": "content not stored: hashed and forgotten",
              "payment_seal": "1020304050607080",
              "proof": "recorded in the KHOTEM ledger; verifiable via /api/attest",
              "seal_stamp": "a1b2c3d4e5f60708",
              "sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
              "timestamp": "2026-08-24T12:00:00.000Z",
              "witness": "KHOTEM-SEAL"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "description": "Provide either content (server hashes and forgets it) or hash (client-side sha256, content never sent).",
                  "properties": {
                    "content": {
                      "description": "Content to hash and seal",
                      "type": "string"
                    },
                    "hash": {
                      "description": "Pre-computed sha256 hex (64 chars)",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        },
        "tags": [
          "receipts",
          "attestation",
          "audit",
          "x402",
          "ai-agents"
        ]
      },
      "builderCode": {
        "code": "bc_l38pwyuh",
        "registry": "base-builder-codes",
        "schema": "erc-8021-schema-2"
      },
      "conveyor": {
        "entry": "/api/seal/free",
        "note": "new here? first room is a free taste - your wallet is your account, no sign-up",
        "price_usdc": 0.01
      },
      "khotemSeal": {
        "info": {
          "description": "Every paid answer carries a KHOTEM seal (payment_seal): a ledger-anchored, independently verifiable stamp of this exact call. Verify any stamp via POST /api/attest ($0.10) or free precheck POST /api/attest/check.",
          "free_precheck": "POST /api/attest/check {\"ref\": \"…\"}",
          "verify": "POST /api/attest {\"ref\": \"<payment_seal or sha256>\"}"
        }
      },
      "knock": {
        "first_seen": "2026-10-13T21:55:36.765Z",
        "note": "first room is a free taste: POST /api/seal/free - your wallet is your account, no sign-up",
        "price_usdc": 0.05,
        "this_route_knocks": 1,
        "your_knocks": 1
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "khotem.com",
    "manifest_name": "khotem.com",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-10-14T01:15:01.050Z"
  },
  "exampleResponse": {
    "example": {},
    "type": "string"
  }
}