ABIs

Built-in ABI constants and deposit helper functions

The SDK exports protocol ABIs, genesis contract addresses, and deposit helper utilities.

Constants

Constant	Type	Description
SRC20_ABI	list[dict]	SRC20 token interface (7 functions, 2 events)
DEPOSIT_CONTRACT_ABI	list[dict]	Validator deposit contract (4 functions, 1 event)
DEPOSIT_CONTRACT_ADDRESS	str	0x00000000219ab540356cBB839Cbe05303d7705Fa
DIRECTORY_ABI	list[dict]	Viewing key directory (4 functions)
DIRECTORY_ADDRESS	str	0x1000000000000000000000000000000000000004

Helper Functions

Function	Returns	Description
compute_deposit_data_root	bytes	SHA-256 SSZ hash tree root for deposit data
make_withdrawal_credentials	bytes	32-byte ETH1 withdrawal credentials from address

Example

import os
from eth_abi import decode
from seismic_web3 import PrivateKey, SEISMIC_TESTNET, SRC20_ABI

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

token = w3.seismic.contract("0xYourTokenAddress", SRC20_ABI)
balance = decode(["uint256"], bytes(token.read.balanceOf()))[0]

See Also

• SRC20 — SRC20 token usage guide

• Contract — Contract interaction patterns

• Namespaces — w3.seismic methods including deposit, get_deposit_count, get_deposit_root