5dc5f1d1c8
* using little endian and tests for encoding dep inputs * use decode value and timestamp method in state * updated comments to match serialization format * latest compiled contract, abi, bytecode, and bindings * to little endian everywhere * fix all tests except for contract tests * include contract changes * address broken build * compile with vyper v8 * update readme * fix pkg name * add skip chainstart delay * skip chainstart delay tests pass * to little endian timestamp
2.3 KiB
Deposit Contract
A validator will deposit 32 ETH to the deposit
contract. The contract will generate a log showing the validator as a
qualified validator.
The deposit is considered to be burned. As you burn the 32 ETH to participate,
the beacon chain will see it and will credit the validator with the validator bond,
At some point in the future, after a hard fork,
the original deposit + interest can be withdrawn back on one of the shards.
To call the registration function, it takes arguments of pubkey,
proof_of_possession, withdrawal_credentials.
If the user wants to deposit more than DEPOSIT_SIZE ETH, they would
need to make multiple deposit calls.
When the contract publishes the ChainStart log, beacon nodes will
start off the beacon chain with slot 0 and last recorded block.timestamp
as beacon chain genesis time.
The registration contract generate logs with the various arguments
for consumption by beacon nodes. It does not validate proof_of_possession
and withdrawal_credentials, pushing the validation logic to the
beacon chain.
How to generate bindings for vyper contract
This requires that you have vyper and abigen installed in your local machine. Vyper: https://github.com/ethereum/vyper Abigen: https://github.com/ethereum/go-ethereum/tree/master/cmd/abigen
To generate the abi using the vyper compiler, you can use
vyper -f abi ./depositContract.v.py
Then the abi will be outputted and you can save it in abi.json in the folder.
To generate the bytecode you can then use
vyper ./depositContract.v.py
and save the bytecode in bytecode.bin in the folder. Now with both the abi and bytecode
we can generate the go bindings.
abigen -bin ./bytecode.bin -abi ./abi.json -out ./depositContract.go --pkg depositContract
How to execute tests
go test ./...
Run with -v option for detailed log output
go test ./... -v
=== RUN TestSetupAndContractRegistration
--- PASS: TestSetupAndContractRegistration (0.01s)
=== RUN TestRegisterWithLessThan32Eth
--- PASS: TestRegisterWithLessThan32Eth (0.00s)
=== RUN TestRegisterWithMoreThan32Eth
--- PASS: TestRegisterWithMoreThan32Eth (0.00s)
=== RUN TestRegisterTwice
--- PASS: TestRegisterTwice (0.01s)
=== RUN TestRegister
--- PASS: TestRegister (0.01s)
PASS
ok beacon-chain/contracts/deposit-contract/ 0.151s