Tutorial: Authenticity checks

Signal-based checks on public identifiers — photo, handle, phone line-type, email — with no private-person data harvesting.

Available signals

• reverse-image — has this photo appeared elsewhere publicly? (catfish signal)
• handle-check — is a username taken across public platforms?
• phone-linetype — mobile / landline / VoIP classification (metadata only).
• email-signals — deliverability + public breach exposure (no contents).

Example

curl -X POST ".../v1/actors/phone-linetype/run-sync-get-dataset-items" \
  -H "X-API-Key: vk_live_..." -H "Content-Type: application/json" \
  -d '{"phone":"+14155550100"}'
# -> { "items": [{ "line_type": "voip", "carrier": "Twilio" }] }

What this is NOT

Vector does not do people-search, reverse phone lookup of a person, or private data. These are metadata + public-signal checks for trust & safety use cases. See Acceptable use.