Berachain Reward Distribution

bera_bgt.sh

# Set RPC URL for bartio
export ETH_RPC_URL="https://bartio.rpc.berachain.com"

# Set contract address (this is a dummy demo contract - change to the network equivalent)
CONTRACT="0xe7a54F63f45796fBE066474A582A137c67696a6f"

# Get recent finalized block's number from Exec Layer -> Get timestamp of its parent block
# Example: 1730756547

cast block finalized

TARGET_BLOCK=`cast block finalized|grep number|awk '{print $2}'`
PARENT_BLOCK=`expr $TARGET_BLOCK + 1`
echo "$TARGET_BLOCK / $PARENT_BLOCK"

cast block $PARENT_BLOCK

# Get the next timestamp - we will generate the rewards by referencing the parent block
# NOTE: Each second identifies a specific block -  there are no two blocks with the same timestamp.
# In this example, we will use the timestamp from above. You can also use any other timestamp in the past 8191 blocks.

TIMESTAMP=`cast block $PARENT_BLOCK|grep timestamp|awk '{print $2}'`

# Sanity check - isTimestampActionable? Returns true if rewards have not yet been distributed for this block.

cast call "$CONTRACT" "isTimestampActionable(uint64 timestamp) returns (bool success)" "$TIMESTAMP"

# Generate proof and extract attributes for contract call
# Example: 
# {"beacon_block_header":{"slot":"0x6a929b","proposer_index":"0x3b","parent_block_root":"0x082ef694 …

PROOF_JSON=`curl http://beacond-host:3500/bkit/v1/proof/block_proposer/t$TIMESTAMP`
echo $PROOF_JSON|jq

# Parse values required for reward dist tx. There are four required attributes
# The host will be your respective local beacond instance, or any public beacond node permitting API calls.

PROOF_JSON=`curl http://beacond-host:3500/bkit/v1/proof/block_proposer/t$TIMESTAMP`

proposer_index=`echo $PROOF_JSON|jq -r '.beacon_block_header.proposer_index'`
pubkey=`echo $PROOF_JSON|jq -r '.validator_pubkey'`
proposer_proof=`echo $PROOF_JSON|jq -j '.proposer_index_proof'|sed 's/"//g'|tr -d '\\n'`
val_pubkey_proof=`echo $PROOF_JSON|jq -j '.validator_pubkey_proof'|sed 's/"//g'|tr -d '\\n'`

echo "Proposer Idx: $proposer_index"
echo "Val Public Key: $pubkey"
echo "Proposer Proof: $proposer_proof"
echo "Validator Pubkey Proof: $val_pubkey_proof"

# Execute tx after setting PK of wallet sending tx (or use --ledger if not using raw PK)
# Example: Transaction successfully executed. Gas used: 104467

PK=`cat privatekey.txt`
cast send "$CONTRACT" "distributeFor(uint64 nextTimestamp, uint64 proposerIndex, bytes calldata pubkey, bytes32[] calldata proposerIndexProof, bytes32[] calldata pubkeyProof)" "$TIMESTAMP" "$proposer_index" "$pubkey" "$proposer_proof" "$val_pubkey_proof" --private-key $PK