United States of America - United States Death Check (SSDMF)

curl -X POST "https://verification.didit.me/v3/database-validation/" \
  -H "x-api-key: YOUR_API_KEY" \
  -F "issuing_state=USA" \
  -F "services=usa_states_death_check" \
  -F "vendor_data=user-1234" \
  -F "first_name=John" \
  -F "last_name=Doe"

{
  "request_id": "req_01H…",
  "status": "Approved",
  "issuing_state": "USA",
  "match_type": "full_match",
  "validations": [
    {
      "outcome_code": "MATCH",
      "service_id": "usa_states_death_check",
      "service_name": "United States of America - United States Death Check (SSDMF)",
      "source_data": {
        "date_of_birth": "1990-01-01",
        "first_name": "John",
        "full_name": "John Doe",
        "last_name": "Doe",
        "name_match_score": "1.000",
        "verifications": {
          "full_name": true
        }
      },
      "validation": {
        "full_name": "full_match"
      }
    }
  ]
}

{
  "request_id": "req_01H…",
  "status": "Declined",
  "issuing_state": "USA",
  "match_type": "no_match",
  "validations": [
    {
      "outcome_code": "NO_MATCH",
      "service_id": "usa_states_death_check",
      "service_name": "United States of America - United States Death Check (SSDMF)",
      "source_data": {
        "full_name": "NO_MATCH"
      },
      "validation": {
        "full_name": "no_match"
      }
    }
  ]
}

POST

database-validation

curl -X POST "https://verification.didit.me/v3/database-validation/" \
  -H "x-api-key: YOUR_API_KEY" \
  -F "issuing_state=USA" \
  -F "services=usa_states_death_check" \
  -F "vendor_data=user-1234" \
  -F "first_name=John" \
  -F "last_name=Doe"

{
  "request_id": "req_01H…",
  "status": "Approved",
  "issuing_state": "USA",
  "match_type": "full_match",
  "validations": [
    {
      "outcome_code": "MATCH",
      "service_id": "usa_states_death_check",
      "service_name": "United States of America - United States Death Check (SSDMF)",
      "source_data": {
        "date_of_birth": "1990-01-01",
        "first_name": "John",
        "full_name": "John Doe",
        "last_name": "Doe",
        "name_match_score": "1.000",
        "verifications": {
          "full_name": true
        }
      },
      "validation": {
        "full_name": "full_match"
      }
    }
  ]
}

{
  "request_id": "req_01H…",
  "status": "Declined",
  "issuing_state": "USA",
  "match_type": "no_match",
  "validations": [
    {
      "outcome_code": "NO_MATCH",
      "service_id": "usa_states_death_check",
      "service_name": "United States of America - United States Death Check (SSDMF)",
      "source_data": {
        "full_name": "NO_MATCH"
      },
      "validation": {
        "full_name": "no_match"
      }
    }
  ]
}

The official Social Security Death Master File. Didit exposes this service through POST /v3/database-validation/ so you can verify the submitted data against the authoritative source and receive normalized match results.

Coverage

Coverage: 100%*
Country: United States
Service ID: usa_states_death_check
Data domain: Other
Category: DeathRecord

Inputs

Field	Required	Example
`first_name`	Yes	`John`
`last_name`	Yes	`Doe`
`middle_name`	No	`Demo`
`date_of_birth`	No	`1990-01-01`
`ssn`	No	`123456789`
`vendor_data`	No	`user-1234`

Required inputs: first_name, last_name
Optional inputs: middle_name, date_of_birth, ssn, vendor_data
Consent: Not required
Workflow availability: Available in workflow
Coverage: 100%*
Price: $0.06 per successful query

Body parameters

string

default:"USA"

required

ISO 3166-1 alpha-3 country code for this database service.Example: USA

string

default:"usa_states_death_check"

required

Array containing this service ID. Pinning the service keeps the request scoped to this exact database.Example: usa_states_death_check

string

default:"John"

required

Given name to validate.Example: John

string

default:"Doe"

required

Family name to validate.Example: Doe

string

default:"Demo"

Middle name, when available.Example: Demo

string

default:"1990-01-01"

Date of birth in YYYY-MM-DD format.Example: 1990-01-01

string

default:"123456789"

ssn value required by this database service.Example: 123456789

string

default:"user-1234"

Your stable user reference for this person, such as your internal user ID. Didit uses it to link standalone checks to the same end user and reduce duplicate-detection noise.Example: user-1234

Input rules & validation notes

US Social Security Number or ITIN - full 9 digits (dashes optional) or only the last 4 digits
ssn must match (?:\d{9}|\d{3}-\d{2}-\d{4}|\d{4}).
For ssn, send either the full 9-digit SSN/ITIN (dashes optional) or only its last 4 digits.

How to call it

curl -X POST "https://verification.didit.me/v3/database-validation/" \
  -H "x-api-key: YOUR_API_KEY" \
  -F "issuing_state=USA" \
  -F "services=usa_states_death_check" \
  -F "vendor_data=user-1234" \
  -F "first_name=John" \
  -F "last_name=Doe"

Every successful call returns HTTP 200. The outcome_code field tells you what actually happened — distinguishing, for example, a real biometric mismatch (BIOMETRIC_NO_MATCH) from a selfie that could not be read (BIOMETRIC_IMAGE_UNUSABLE). The status shown is the default feature status; your configured Partial Match / No Match actions can override it.

MATCH — The registry confirmed the identity and every checked field matched.

{
  "request_id": "req_01H…",
  "status": "Approved",
  "issuing_state": "USA",
  "match_type": "full_match",
  "validations": [
    {
      "outcome_code": "MATCH",
      "service_id": "usa_states_death_check",
      "service_name": "United States of America - United States Death Check (SSDMF)",
      "source_data": {
        "date_of_birth": "1990-01-01",
        "first_name": "John",
        "full_name": "John Doe",
        "last_name": "Doe",
        "name_match_score": "1.000",
        "verifications": {
          "full_name": true
        }
      },
      "validation": {
        "full_name": "full_match"
      }
    }
  ]
}

NO_MATCH — The registry returned no match for the submitted data.

{
  "request_id": "req_01H…",
  "status": "Declined",
  "issuing_state": "USA",
  "match_type": "no_match",
  "validations": [
    {
      "outcome_code": "NO_MATCH",
      "service_id": "usa_states_death_check",
      "service_name": "United States of America - United States Death Check (SSDMF)",
      "source_data": {
        "full_name": "NO_MATCH"
      },
      "validation": {
        "full_name": "no_match"
      }
    }
  ]
}

Returned data

The exact fields surfaced in source_data depend on what the registry returns. The generated example for usa_states_death_check currently documents this normalized shape:

date_of_birth
first_name
full_name
last_name
name_match_score

Pricing & SLAs

United States of America - United States Death Check (SSDMF) queries are billed only when Didit receives a conclusive result from the validation source.

Per-call price: $0.06 USD.
Billing: per successful query. You are not charged when the registry is unreachable, when required fields are missing, or when the request is rejected before reaching the source.
Latency: typical p95 < 2 s.
Availability: 99.9% per quarter on Didit’s side; downstream source availability varies by country and dataset.

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United States of America - United States Death Check (SSDMF)

Coverage

Inputs

Body parameters

Input rules & validation notes

How to call it

Returned data

Pricing & SLAs

Continue reading

​Coverage

​Inputs

​Body parameters

​Input rules & validation notes

​How to call it

​Returned data

​Pricing & SLAs

​Continue reading

Coverage

Inputs

Body parameters

Input rules & validation notes

How to call it

Returned data

Pricing & SLAs

Continue reading