br_rg

Brazilian identity card (RG)

Brazilian identity card (Registro Geral), previous model, issued by each state's public security department; no expiry or MRZ. May include the CPF.

Category: Identity
Country: Brazil
Extracted fields: 11 fields
Cost: 1 credit

br_rgspecimen

Document number
First name
Last name
Date of birth
Issue date
Issuing state
Issuing authority
Cpf
Father name

What it checks

National identifiers. Official checksum or format of the number (NIF, CPF, CURP, RUT, SSN…).br_cpf
Holder. Name, number or date of birth match what you expect.
Age. Minimum or maximum age from the date of birth.

Extracted fields

Document numberdocument_number
First namefirst_name
Last namelast_name
Date of birthbirth_date
Issue dateissue_date
Issuing stateissuing_state
Issuing authorityissuing_authority
Cpfcpf
Father namefather_name
Mother namemother_name
Place of birthbirth_place

Sample request

curl https://api.constaia.com/v1/analyze \
  -H "Authorization: Bearer $CONSTAIA_API_KEY" \
  -F "file=@document.pdf" \
  -F 'options={
    "expect": "br_rg",
    "checks": {
      "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": "br_rg",
    "label": "Brazilian identity card (RG)",
    "confidence": 0.97
  },
  "verdict": {
    "expected": [
      "br_rg"
    ],
    "match": true,
    "status": "valid",
    "reasons": [
      {
        "code": "type_match",
        "severity": "info",
        "message": "The document is: Brazilian identity card (RG)."
      }
    ]
  },
  "fields": {
    "document_number": {
      "value": "12.345.678-9",
      "confidence": 0.99,
      "validated": true
    },
    "first_name": {
      "value": "ANA",
      "confidence": 0.98,
      "validated": null
    },
    "last_name": {
      "value": "ESPÉCIME DA SILVA",
      "confidence": 0.97,
      "validated": null
    },
    "birth_date": {
      "value": "1985-07-30",
      "confidence": 0.96,
      "validated": null
    },
    "issue_date": {
      "value": "2010-04-12",
      "confidence": 0.99,
      "validated": null
    },
    "issuing_state": {
      "value": "SP",
      "confidence": 0.98,
      "validated": null
    },
    "issuing_authority": {
      "value": "SSP/SP",
      "confidence": 0.97,
      "validated": null
    },
    "cpf": {
      "value": "529.982.247-25",
      "confidence": 0.96,
      "validated": null
    },
    "mother_name": {
      "value": "MARIA DA SILVA",
      "confidence": 0.99,
      "validated": null
    },
    "birth_place": {
      "value": "SAO PAULO - SP",
      "confidence": 0.98,
      "validated": null
    }
  },
  "checks": [
    {
      "code": "id_number",
      "passed": true,
      "message": "id_number"
    }
  ],
  "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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