A multichain world

Ethereum
Rollups, L2s, sidechains...
Other L1s

How to transfer liquidity between

all the different networks ?

The cross-chain

communication problem

Chain A

Anne

Chain B

LockOrSendFunds()

MintOrWithdrawFunds()

How to verify the funds have been properly sent on chain A ?

The cross-chain communication methods

Trusted third-party (Binance Panama Bridge)
Custom POS chains/L2/state channels (Celer Guardian Network)
Atomic locks with whitelisted network of relayers (Connext)
Hybrid systems of nodes that collectively sign transactions (Multichain's SMPC nodes)
HTLCs (Nuclear Bridge)

Warpgate

Enable cross-domain transfer

with very light clients

Very light clients

Verify

the chain A transaction

directly from chain B

A very light client to verify

Ethereum post-merge transactions

from Aleph Zero

A block

Block hash

Block header

Transaction

transactionRoot

A transaction

chainId
nonce
maxPriorityFeePerGas
maxFeePerGas
gasLimit
to
value

data
signature (v, r, s)

Transaction hash

Verify a transaction is in a block

txRoot

txHash1

txHash2

txHash3

txHash4

hash(A+B)

hash(C+D)

What's next

Implement the Very Light Client with native Ink!
Implement the sync committee consensus to verify the block headers (or another trusted source for the block header)

ETA: a few months

deck

By warroom