birth_certificate

Birth certificate

Birth certificate from any country (full copy, extract or multilingual form).

Category: Civil records
Country: International
Extracted fields: 10 fields
Cost: 1 credit

birth_certificatespecimen

Holder name
Date of birth
Place of birth
Sex
Mother name
Father name
Registry
Registry reference
Country

What it checks

Holder. Name, number or date of birth match what you expect.

Extracted fields

Holder nameholder_name
Date of birthbirth_date
Place of birthbirth_place
Sexsex
Mother namemother_name
Father namefather_name
Registryregistry
Registry referenceregistry_reference
Countrycountry
Issue dateissue_date

Sample request

curl https://api.constaia.com/v1/analyze \
  -H "Authorization: Bearer $CONSTAIA_API_KEY" \
  -F "file=@document.pdf" \
  -F 'options={
    "expect": "birth_certificate",
    "checks": {
      "max_age_days": 90,
      "holder": {
        "full_name": "Carmen Especimen Ruiz"
      }
    },
    "storage": "none"
  }'

Sample response

Fictitious data. Shortened response.

200 OK · application/json

{
  "id": "an_01J9Z3K8QW4T6Y2B7N5M1R0PXC",
  "object": "analysis",
  "status": "completed",
  "livemode": false,
  "document": {
    "type": "birth_certificate",
    "label": "Birth certificate",
    "confidence": 0.97
  },
  "verdict": {
    "expected": [
      "birth_certificate"
    ],
    "match": true,
    "status": "valid",
    "reasons": [
      {
        "code": "type_match",
        "severity": "info",
        "message": "The document is: Birth certificate."
      }
    ]
  },
  "fields": {
    "holder_name": {
      "value": "ESPECIMEN",
      "confidence": 0.99,
      "validated": true
    },
    "birth_date": {
      "value": "2026-09-01",
      "confidence": 0.98,
      "validated": null
    },
    "birth_place": {
      "value": "ESPECIMEN",
      "confidence": 0.97,
      "validated": null
    },
    "sex": {
      "value": "M",
      "confidence": 0.96,
      "validated": null
    },
    "mother_name": {
      "value": "ESPECIMEN",
      "confidence": 0.99,
      "validated": null
    },
    "father_name": {
      "value": "ESPECIMEN",
      "confidence": 0.98,
      "validated": null
    },
    "registry": {
      "value": "ESPECIMEN",
      "confidence": 0.97,
      "validated": null
    },
    "registry_reference": {
      "value": "ESPECIMEN",
      "confidence": 0.96,
      "validated": null
    },
    "country": {
      "value": "ESPECIMEN",
      "confidence": 0.99,
      "validated": null
    },
    "issue_date": {
      "value": "2026-09-01",
      "confidence": 0.98,
      "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…

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