Deposit Contract

Validator deposit contract ABI and address constants

ABI and address for Seismic's Eth2-style validator deposit contract at 0x00000000219ab540356cBB839Cbe05303d7705Fa. Validators deposit ETH along with their public keys, signatures, and withdrawal credentials.

Constants

from seismic_web3 import DEPOSIT_CONTRACT_ABI, DEPOSIT_CONTRACT_ADDRESS

DEPOSIT_CONTRACT_ADDRESS: str = "0x00000000219ab540356cBB839Cbe05303d7705Fa"
DEPOSIT_CONTRACT_ABI: list[dict[str, Any]]

Functions

Function	Parameters	Returns	Mutability	Description
deposit	node_pubkey, consensus_pubkey, withdrawal_credentials, node_signature, consensus_signature, deposit_data_root	—	payable	Deposit ETH to become a validator
get_deposit_count	—	bytes	view	Total number of deposits
get_deposit_root	—	bytes32	view	Merkle root of all deposits
supportsInterface	interfaceId: bytes4	bool	pure	ERC-165 interface check

Events

Event	Parameters	Description
DepositEvent	node_pubkey, consensus_pubkey, withdrawal_credentials, amount, node_signature, consensus_signature, index	Emitted on successful deposit

Deposit Requirements

Requirement	Details
Minimum deposit	1 ETH (standard validator: 32 ETH)
node_pubkey	32-byte ED25519 public key
consensus_pubkey	48-byte BLS12-381 public key
withdrawal_credentials	32 bytes — use make_withdrawal_credentials
node_signature	64-byte ED25519 signature
consensus_signature	96-byte BLS12-381 signature
deposit_data_root	32 bytes — use compute_deposit_data_root
Transaction value	Must match amount_gwei * 10**9 in wei

Example

import os
from seismic_web3 import PrivateKey, SEISMIC_TESTNET

pk = PrivateKey.from_hex_str(os.environ["PRIVATE_KEY"])
w3 = SEISMIC_TESTNET.wallet_client(pk)

# Query deposit state via namespace methods
count = w3.seismic.get_deposit_count()
root = w3.seismic.get_deposit_root()

See Also

• compute_deposit_data_root — Compute the SSZ hash tree root

• make_withdrawal_credentials — Build ETH1 withdrawal credentials

• deposit — Namespace method for making deposits