Contract Methods Reference

The table below summarizes the contract methods and their operational role.

Contract	Method	Key Role	Trigger	Purpose
DPOS Contract	setFreeze(freeze, validators[])	Admin key	Every 10s (freeze) + Every 1min (freeze or unfreeze)	Freeze or unfreeze validators
DPOS Contract	updateValidator()	Admin key	Every 10s	Rotate validator set
Heartbeat Contract	pushStatus({onlineList[], onlineTimestamp})	Operator key	Every 1 hour	Append online node set for that timestamp slot into contract storage
Heartbeat Contract	getNodeList({rate})	DPOS Contract (internal)	Daily 18:00, inside extract()	Return validators that appeared in ≥rate% of stored hourly slots
Heartbeat Contract	clearRecord()	DPOS Contract (internal)	Daily 18:00, after getNodeList()	Delete all timestamp records
DPOS Contract	extract()	Admin key	Daily 18:00	Query Heartbeat Contract, calculate reward distribution, wipe records
DPOS Contract	extractTransfer(list[])	Admin key	Daily 18:00	Distribute rewards to fund addresses

Contract interaction pattern

The DPOS contract is the decision and settlement contract. The Heartbeat contract is the historical evidence store used to derive online participation.

This separation is useful because it keeps monitoring evidence and reward execution loosely coupled while preserving on-chain verification of eligibility.