es_work_history

Spanish employment history report (vida laboral)

Employment history report from the Spanish Social Security Treasury: registrations and terminations by employer and scheme, with total days contributed; signed PDF.

Category: Employment
Country: Spain
Extracted fields: 8 fields
Cost: 1 credit

es_work_historyspecimen

Holder name
Holder ID number
Issue date
Social security number
Date of birth
Total days
Periods
Secure Verification Code (CSV)

What it checks

National identifiers. Official checksum or format of the number (NIF, CPF, CURP, RUT, SSN…).es_nif
Holder. Name, number or date of birth match what you expect.
Recency. Issued less than N days ago.
Secure verification code. Format of the code used to check it with the issuer.
PDF electronic signature. PAdES signature verified when the original PDF is sent.

Extracted fields

Holder nameholder_name
Holder ID numberholder_id
Issue dateissue_date
Social security numbersocial_security_number
Date of birthbirth_date
Total daystotal_days
Periodsperiods
Secure Verification Code (CSV)csv_code

Sample request

curl https://api.constaia.com/v1/analyze \
  -H "Authorization: Bearer $CONSTAIA_API_KEY" \
  -F "file=@document.pdf" \
  -F 'options={
    "expect": "es_work_history",
    "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": "es_work_history",
    "label": "Spanish employment history report (vida laboral)",
    "confidence": 0.97
  },
  "verdict": {
    "expected": [
      "es_work_history"
    ],
    "match": true,
    "status": "valid",
    "reasons": [
      {
        "code": "type_match",
        "severity": "info",
        "message": "The document is: Spanish employment history report (vida laboral)."
      }
    ]
  },
  "fields": {
    "holder_name": {
      "value": "JUAN ESPAÑOL ESPAÑOL",
      "confidence": 0.99,
      "validated": true
    },
    "holder_id": {
      "value": "99999999R",
      "confidence": 0.98,
      "validated": null
    },
    "issue_date": {
      "value": "2026-09-01",
      "confidence": 0.97,
      "validated": null
    },
    "social_security_number": {
      "value": "281234567840",
      "confidence": 0.96,
      "validated": null
    },
    "birth_date": {
      "value": "1985-07-30",
      "confidence": 0.99,
      "validated": null
    },
    "total_days": {
      "value": 5120,
      "confidence": 0.98,
      "validated": null
    },
    "periods": {
      "value": [
        {
          "regime": "GENERAL",
          "company": "ESPECIMEN S.L.",
          "ccc": "28123456789",
          "start_date": "2015-03-02",
          "effective_date": "2015-03-02",
          "part_time_coefficient": 100,
          "contract_type": "100",
          "days": 4202
        }
      ],
      "confidence": 0.97,
      "validated": null
    }
  },
  "checks": [
    {
      "code": "id_number",
      "passed": true,
      "message": "id_number"
    },
    {
      "code": "csv_format",
      "passed": true,
      "message": "The verification code has a valid format."
    }
  ],
  "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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