Validators & consensus
ROLLCALL
Prove validator liveness, every epoch.
Live today onBitcoin·Litecoin·Dogecoin·more chains coming
ROLLCALL is a validator-broadcast liveness check published on Dogecoin: each epoch, validators sign a canonical bound to a Bitcoin epoch block's ledger hash, so a signature cannot be prepared in advance and proves the key was operating in that epoch.
What you can do with it
- Prove a validator's signing key was live in a specific epoch with a signature that cannot be pre-signed.
- Let anyone publish the roll call: signatures land from any address, and the epoch's present set is their union.
- Retire idle validators automatically: repeated absence deactivates the stake with a cooldown refund, never a burn.