Permissionless Cranks

Cranks are permissionless instructions — anyone can call them. They replace centralized monitoring with economic incentives.

reclaim_expired

Expires a claimed job that has passed its deadline. The caller earns a crank reward.

Requirements:

• Job must be Claimed
• Current time > deadline

Effects:

1. Slash: slash_amount = worker_stake * slash_rate_bps / 10000
2. Crank reward: crank_reward = slash_amount * crank_reward_bps / 10000
3. Creator share: slash_amount - crank_reward

If retry_count < max_retries:

• Job re-opens as Open (reward stays in vault for next worker)
• retry_count incremented
• Worker still slashed, cranker still paid

If retries exhausted:

• Full reward returned to creator
• Status: Expired (terminal)

In both cases:

• Worker's stake_amount reduced by slash_amount
• Worker's jobs_failed incremented
• Worker's active_jobs decremented

close_job

Closes a terminal job account and its result account (if any), reclaiming rent.

Requirements:

• Job must be in a terminal state: Completed, Expired, or Cancelled

Effects:

• Job account rent returned to creator
• JobResult account rent returned to the worker who submitted it
• Both accounts are closed

Example: Slashing Math

With slash_rate_bps = 1000 (10%) and crank_reward_bps = 2000 (20% of slash):

• Worker staked 100 tokens -> slashed 10 tokens
• Cranker gets 2 tokens (20% of 10)
• Creator gets 8 tokens (remaining slash)
• Creator also gets their original reward back (if terminal expiry)