Verifier types

How SovAds proves a CTA completion.

Verifier	Description
`ORACLE`	Backend trusts the proof from the SDK (with lightweight sanity checks).
`SELF_SIGNED`	Wallet signs a fixed message. Verified with viem `verifyMessage`.
`STAKE_PROOF`	Reads `stakers[wallet].stakedAmount` on `SovAdsStreaming`.
`ONCHAIN_EVENT`	Inspects a tx receipt: sender, target, event signature.
`WEBHOOK`	Advertiser server (or pixel) confirms completion via HMAC-signed callback.
`AI_PLAN`	Groq LLM generates a verification plan (read-only on-chain steps).
`MANUAL`	Admin reviews and approves completions in the backoffice.

Attached vs standalone

Two ways to surface a CTA task to viewers.

Rewards & limits

SovPoint and G$ rewards, plus per-task caps.