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The following steps guide you through the process of increasing a Validator’s $BERA stake to increase their stake weight and improve the probability of proposing blocks. This guide assumes that a Validator is already in the Active Set. If you would like to test this out locally, consult the guide to a local Kurtosis-based devnet, which includes instructions on testing deposits.

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Active set and $BERA stake

Currently, the Active Set consists of 69 Validators, which is the number of Validators that can propose blocks. The Active Set is determined by the amount of $BERA staked, where the top stakers are included in the Active Set. To be included in the Active Set, a Validator must stake at least 10,000 $BERA or 1 $BERA more than the lowest staker in the Active Set (whichever is greater). If a Validator is removed from the Active Set, all $BERA staked to that Validator will be returned to the Validator’s Withdrawal Credentials Address.

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Staking considerations

There are a few points to consider with staking:
  • Stake returned to single address — All $BERA staked to a Validator is returned to the Validator’s Withdrawal Credentials Address. If there are multiple stakers, an agreement must be put in place with the Validator to ensure that the $BERA is returned to the correct addresses.
  • Liquid staking protocols — Managing multiple stakers with a single Validator can be difficult. As an alternative, Liquid Staking Protocols are an option.

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Requirements

Before you begin, ensure you have the following:
  • A Validator that is already in the Active Set
  • A Validator’s pubkey — PubKeys can be found at Berachain Hub Validators
  • A minimum of 10,000 $BERA or 1 $BERA more than the lowest staker in the Active Set (whichever is greater)
  • Foundry

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Steps to increase a validator’s $BERA stake

VALIDATOR_PUB_KEY=<VALIDATOR_PUB_KEY_98CHARS_WITH_0x>;
YOUR_ETH_WALLET_PRIVATE_KEY=<YOUR_ETH_WALLET_PRIVATE_KEY>;
YOUR_ETH_RPC_URL=<YOUR_ETH_RPC_URL>;
YOUR_STAKED_AMOUNT=<NUMBER>ether;

# The 0x0.. are NOT typos
cast send "0x4242424242424242424242424242424242424242" \
'deposit(bytes,bytes,bytes,address)' \
"$VALIDATOR_PUB_KEY" \
"0x0000000000000000000000000000000000000000000000000000000000000000" \
"0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000" \
"0x0000000000000000000000000000000000000000" \
--private-key "$YOUR_ETH_WALLET_PRIVATE_KEY" \
--value $YOUR_STAKED_AMOUNT \
-r $YOUR_ETH_RPC_URL;