LinkedIn to Hashed Email & MAID

What this skill does

Maps LinkedIn B2B profiles to device-level advertising IDs (MAIDs) and personal hashed emails (MD5/SHA-256). Built for AdTech, programmatic advertising, and data partnerships where you need to bridge B2B identity to device-level targeting.

Two distinct outputs come off each LinkedIn profile, each on its own path.

Chain

LinkedIn URL
  ├── linkedin_to_sha256                 (LinkedIn to SHA-256 + MD5 hashes - upload directly to ad platforms)
  └── linkedin_to_best_personal_email    (LinkedIn to a plaintext email)
        to email_to_maid                 (plaintext email to MAIDs / device IDs)

linkedin_to_sha256 produces hashed emails you upload directly to ad platforms - they are an output, not an input. email_to_maid takes a plaintext email, so MAIDs require resolving a real email from the profile first.

Use cases

• Upload MAIDs to DSP/DMP for programmatic audience targeting
• Match B2B profiles to mobile devices for cross-device campaigns
• Build SHA-256 hashed audience lists for Meta or Google Custom Audiences
• Identity resolution for data clean rooms

Output

Profiles processed:  X
Hashes resolved:     X  (XX%)
Emails resolved:     X  (XX%)
MAIDs found:         X  (XX%)
Credits used:        ~XXX

Tips

• Expected match rates: hashes ~50–70% of LinkedIn profiles, personal email ~50–70%, MAIDs from email ~30–60%
• Multiple MAIDs per profile (multi-device) are included in output with IDFA vs GAID type noted
• A mandatory credit check runs before the chain starts - estimated 2–4 credits per profile on full hits
• You are responsible for lawful use of MAIDs and hashed PII under GDPR, CCPA, and platform policies