Register for tokens: https://docs.google.com/forms/d/e/1FAIpQLSebODebNu4eSVBGIY3EowXqHQTTaLAFngMiWHihVeKeHWuWYQ/viewform
For tech support you can ask a question on
- Mythos Discord, #support channel: https://discord.gg/DQn3f4yu
The information below is outdated. We no longer use Ethermint for our chains. We have implemented our own eWASM engine for Cosmos SDK chains. If you want to test it, you can join the Mythos Discord with the above link.
Mythos, Ethos and Logos are Cosmos-EVM cutting-edge chains based on Ethermint (and therefore Evmos-compatible) that host live, publicly verifiable prototypes of our work at The Laurel Project https://laurel.provable.dev.
We showcase innovative features that Cosmos-EVM chains can have, some of which have been/will be proposed to Evmos. This is the future of Cosmos-EVM and you can help us build it.
All this effort is volunteer effort. To support these EVM inter-chain projects on Evmos, you can join as a volunteer or give 100% of your staking reward to our validator: https://evolve.provable.dev/.
Note: the Mythos, Logos, Ethos tokens do not have value outside of transaction gas. Mythos, Logos, Ethos might be restarted from scratch at a later time, (1 month after the hackathon).
Note: Information below might be outdated.
Presentation: https://docs.google.com/presentation/d/1A6kFqRLrCv5n755kU6duAJz2UQdbJlpRqpIADvfJjfM/edit?usp=sharing
- Install Metamask (or another EVM wallet) in your browser (ideally Chrome): https://metamask.io/
- Fill in this form with your Ethereum address, to receive tokens on the Mythos, Ethos, Logos chains: https://forms.gle/3sGGBEPzqLQM7Zp7A
- Add Mythos, Logos, Ethos to your Metamask:
- Name:
mythos.provable.dev - RPC URL:
https://mythos-evm.provable.dev - ChainID:
7001 - Currency:
aMYT - Block explorer:
https://explorer-mythos.provable.dev/
- Name:
logos.provable.dev - RPC URL:
https://logos-evm.provable.dev - ChainID:
7002 - Currency:
aLYT - Block explorer:
https://explorer-logos.provable.dev
- Name:
ethos.provable.dev - RPC URL:
https://ethos-evm.provable.dev - ChainID:
7003 - Currency:
aRYT - Block explorer:
https://explorer-ethos.provable.dev
MacOS binaries: https://drive.google.com/file/d/1USKotmn882BzVVhWDiirf3TZy9Oz_nQl/view?usp=sharing Binaries are only needed for the Cosmos SDK part of: opening an interchain account, forwarding the abstract account across chains and sending tokens for each interchain account (on each chain). Some of these messages are also exposed on the EVM side, in the precompiles (Quasar feature). The intent is to expose all of them in the EVM.
- register for tokens and support to do the setup
- create interchain accounts for your Ethereum address (replace with the account that you have)
mythosd tx intertx register --from mythos1kjuzm2lsa8ndlc904gvnex9lur8tuputpzq928 --connection-id connection-0 --chain-id mythos_7001-1 --node https://mythos-rpc.provable.dev:443 --home ~/.mythosd --fees 30aMYT --gas=251206 -y
- it may take 1-2 min to create, check creation with:
mythosd q intertx account-interchain mythos1kjuzm2lsa8ndlc904gvnex9lur8tuputpzq928 connection-0 --chain-id mythos_7001-1 --node https://mythos-rpc.provable.dev:443
- send funds to your interchain account on Logos: (replace the inter-chain account address with yours)
logosd tx bank send logos1kjuzm2lsa8ndlc904gvnex9lur8tuputgvrq5e logos1eqtc4q6sxt9lglqz8nuvtn0e2cxmrpkkwgkj3dyf9x0vh5lq0nzse9mc7m 1000000000000000000aLYT --fees 20aLYT --chain-id logos_7002-1 --node https://logos-rpc.provable.dev:443 --home ~/.logosd --keyring-backend test -y
# check balance
logosd q bank balances logos1eqtc4q6sxt9lglqz8nuvtn0e2cxmrpkkwgkj3dyf9x0vh5lq0nzse9mc7m --chain-id logos_7002-1 --node https://logos-rpc.provable.dev:443 --home ~/.logosd
- repeat same process for Logos and Ethos
logosd tx intertx register --from logos1kjuzm2lsa8ndlc904gvnex9lur8tuputgvrq5e --connection-id connection-1 --chain-id logos_7002-1 --node https://logos-rpc.provable.dev:443 --home ~/.logosd --fees 30aLYT --gas=251206 -y
ethosd tx bank send ethos1kjuzm2lsa8ndlc904gvnex9lur8tuput6gll4p ethos1zz38ahrqfkrrzffqc5eceywz57fspdlh35sqvavk6ufew0m0ectscwmz3u 1000000000000000000aRYT --fees 20aRYT --chain-id ethos_7003-1 --node https://ethos-rpc.provable.dev:443 --home ~/.ethosd --keyring-backend test -y
- create and forward the abstract account to each chain - from Mythos -> Logos, from Logos -> Ethos
mythosd tx intertx account-abstract-forward mythos1kjuzm2lsa8ndlc904gvnex9lur8tuputpzq928 connection-0 --from newacc --chain-id mythos_7001-1 --home ~/.mythosd --node https://mythos-rpc.provable.dev:443 --keyring-backend test --fees 300aMYT -y
logosd tx intertx account-abstract-forward logos1kjuzm2lsa8ndlc904gvnex9lur8tuputgvrq5e connection-1 --from logos1kjuzm2lsa8ndlc904gvnex9lur8tuputgvrq5e --chain-id logos_7002-1 --home ~/.logosd --node https://logos-rpc.provable.dev:443 --keyring-backend test --fees 300aLYT -y
mythosd q intertx account-abstract mythos1kjuzm2lsa8ndlc904gvnex9lur8tuputpzq928 "connection-0" --home ~/.mythosd --node https://mythos-rpc.provable.dev:443
To do a multi-chain deploy or a multi-chain transaction.
https://mark.provable.dev/?ipfs=QmPDfrDDaH8yoNcagz8pwMPsT2tFze7YvjCih9MDWn5XVq&m=e
Deploy a multi-chain SimpleStorage smart contract, modify the state on all chains in a single transaction.
Smart contract: https://github.com/the-laurel/demos/tree/main/multi-chain-simple-storage.
Use nBridge dApp.
Make sure the abstract account has the same nonce on all chains. E.g. if you sent a multi-chain transaction on Mythos and Logos, you must send it on Ethos too, if you want to later be able to replay a second transaction on all three. Otherwise, the second transaction will fail on Ethos.
Inter-Chain ERC20 (ICERC20) smart contract is at address [Ethereum address]. See contract code & ABI at https://github.com/the-laurel/demos/tree/main/IcERC20.
A deployed example on Mythos and Logos is at 0x67d71BcE3cdBa17E40883398dB5aec8c6b7e96a3.
Use nBridge dApp to encode the calldata and send a replay dependent transaction.
You can: -> move your ICERC20 tokens from Mythos to your account (same Ethereum address) on another chain (Logos, Ethos) -> transfer your ICERC20 tokens from Mythos to another account, on another chain (Logos, Ethos)
- The EVM Inter-Chain playlist: https://www.youtube.com/playlist?list=PL323JufuD9JCrElzoheW-oJMujGjHtp-k
https://mark.provable.dev/?m=e
- know well your intent and the limitations of the EVM chain
- develop the smart contracts in Solidity with Remix
- test the ABI in Remix
- produce a simple dApp to test independently from Remix
- make the dApp intuitive, secure, and bug-free
- deploy the contracts on the pubic chain
- deploy the dApp on IPFS
- profit
We simplified the process:
- know well your intent and the limitations of the EVM chain
- develop the smart contracts in Solidity with Remix or in our taylor IDE
- export the ABI to obtain a simple dApp
- make the dApp intuitive, secure, and bug-free in the same IDE
- press a button and it gets saved to IPFS and QR created for mobile share
- deploy the contracts too on the public chain
- profit
For todays lessons, you will receive stubs of code from IPFS. You should be able to further develop the code to work in the Inter-Chain environment.
Plus: after you develop a dApp, you will be able to share it with the others.
needs to:
- be signed by the same account
- the contract has to have the same address
- with the same nonce
- on each chain that is played on
We have created 2 types of trustless bridges that use transaction replay: 1 can be used between 2 chains and 1 can be used on 3 or more chains and it uses a router to create a ring of chains. The router selects on wich chains the transaction should be replayed.
For ease of use, you can find all the precompile interfaces in ./docs/precompiles/PrecompileWrap.sol, deployed at 0x320555a5112A4a5572bF37573Ce8973bAeDab9B2, on Mythos.
- Address:
0x0000000000000000000000000000000000000014 - Interface: https://github.com/the-laurel/demos/tree/main/docs/precompiles/EvmInterpreter
- Address:
0x0000000000000000000000000000000000000019 - Interface: https://github.com/the-laurel/demos/tree/main/docs/precompiles/InterTx
- Address:
0x000000000000000000000000000000000000001a - Interface: https://github.com/the-laurel/demos/tree/main/docs/precompiles/AbstractAccount
- Address:
0x000000000000000000000000000000000000001d - Interface: https://github.com/the-laurel/demos/tree/main/docs/precompiles/CosmosSdk