ETH2.0: Bridging ETH1.0

See also: Ethereum 2.0: Merge

Entry from ETH1.0

Deposit in ETH1

spec/Becoming a validator

Locally generate ETH2.0 BLS Pubkey and sign the deposit tx with it in ETH1.0 by ECDSA Pub Key

Enforcement of processing deposits

Deposit Inclusion Reward? #539

Per block process_operations

code:Python

# Verify that outstanding deposits are processed up to the maximum number of deposits

assert len(body.deposits) == min(MAX_DEPOSITS, state.eth1_data.deposit_count -state.eth1_deposit_index)

Therefore, ETH2 client must watch the log of ETH1 chain

Eth1Data voting mechanism

Update of Eth1Data

From Honest validator spec,

The block.eth1_data field is for block proposers to vote on recent Eth 1.0 data

(...)

If over half of the block proposers in the current Eth 1.0 voting period vote for the same eth1_data then state.eth1_data updates at the end of the voting period.

Per block state transition of ETH1 data voting

process_eth1_data

Incentive

Eth1 voting DoS #722

ETH2.0 as a finality gadget for ETH1.0

Using the Beacon chain to POS-finalize the Ethereum 1.0 chain 2018.12

Attestation committee of the shard 0 will be responsible for the POS validation of the Ethereum 1.0 chain

Finality gadget for Ethereum1x Working Group

Slide by Alex Stokes @DEVCON5

Medium by Alex Stokes

#Ethereum_2.0