notarial_deed

Notarial deed

Notarial deed or instrument from any country (company formation, sale, power of attorney…): notary, protocol number, date, parties and subject.

Category: Legal
Country: International
Extracted fields: 11 fields
Cost: 1 credit

notarial_deedspecimen

Deed type
Notary name
Notary location
Protocol number
Deed date
Parties
Subject
Amount
Copy type

What it checks

No type-specific deterministic validators: your checks apply (required fields, dates, holder).

Extracted fields

Deed typedeed_type
Notary namenotary_name
Notary locationnotary_location
Protocol numberprotocol_number
Deed datedeed_date
Partiesparties
Subjectsubject
Amountamount
Copy typecopy_type
Secure Verification Code (CSV)csv_code
Countrycountry

Sample request

curl https://api.constaia.com/v1/analyze \
  -H "Authorization: Bearer $CONSTAIA_API_KEY" \
  -F "file=@document.pdf" \
  -F 'options={
    "expect": "notarial_deed",
    "checks": {},
    "storage": "none"
  }'

Sample response

Fictitious data. Shortened response.

200 OK · application/json

{
  "id": "an_01J9Z3K8QW4T6Y2B7N5M1R0PXC",
  "object": "analysis",
  "status": "completed",
  "livemode": false,
  "document": {
    "type": "notarial_deed",
    "label": "Notarial deed",
    "confidence": 0.97
  },
  "verdict": {
    "expected": [
      "notarial_deed"
    ],
    "match": true,
    "status": "valid",
    "reasons": [
      {
        "code": "type_match",
        "severity": "info",
        "message": "The document is: Notarial deed."
      }
    ]
  },
  "fields": {
    "deed_type": {
      "value": "ESPECIMEN",
      "confidence": 0.99,
      "validated": true
    },
    "notary_name": {
      "value": "ESPECIMEN",
      "confidence": 0.98,
      "validated": null
    },
    "notary_location": {
      "value": "ESPECIMEN",
      "confidence": 0.97,
      "validated": null
    },
    "protocol_number": {
      "value": "ESPECIMEN",
      "confidence": 0.96,
      "validated": null
    },
    "deed_date": {
      "value": "2026-09-01",
      "confidence": 0.99,
      "validated": null
    },
    "parties": {
      "value": [
        {
          "name": "ESPECIMEN",
          "tax_id": "ESPECIMEN",
          "role": "ESPECIMEN"
        }
      ],
      "confidence": 0.98,
      "validated": null
    },
    "subject": {
      "value": "ESPECIMEN",
      "confidence": 0.97,
      "validated": null
    },
    "amount": {
      "value": 100,
      "confidence": 0.96,
      "validated": null
    },
    "copy_type": {
      "value": "ESPECIMEN",
      "confidence": 0.99,
      "validated": null
    },
    "csv_code": {
      "value": "ESPECIMEN",
      "confidence": 0.98,
      "validated": null
    },
    "country": {
      "value": "ESPECIMEN",
      "confidence": 0.97,
      "validated": null
    }
  },
  "checks": [],
  "warnings": [],
  "storage": {
    "mode": "none",
    "file_deleted_at": "2026-09-29T10:00:02Z",
    "expires_at": null
  },
  "usage": {
    "credits": 1,
    "pages": 1
  }
}

FAQ

Does Constaia prove the document is authentic?

No. It checks the type, data consistency and your rules, and flags signals such as a possible edit or a screen photo. That does not prove authenticity.

Is a copy of the document kept?

No, unless you ask for it. With storage "none" (the default) the file is deleted when the analysis ends.

And for the record…

Create your account, copy the test key and validate your first document in five minutes.

Create a free account Talk to sales