bifrost

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  relayer connected

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  frontend for txs

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  relayer

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  tez transferred via bifrost

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  List received Txs

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  List bank balances after sending mutez

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  List sent txs from cosmos to tezos

Inspiration

The project was inspired by Gravity bridge probably the 1st ever working peg-zone, and the project bifrost aims to connect tezos to cosmos realm

What it does

The project aims at creating a bridge to exchange tezos from tezos-blockchain to cosmos blockchain

How we built it

The project was built using

a) Starport

b) Golang

c) Tezos smart contract language smartpy

Challenges we ran into

There were many challenges

a) learning smartpy and some tezos specifics.

b) creating a signature that is compatible with check_signature of smartpy or michelson. It is still unsuccessful, the checking of signature and transporting is easy part whereas generating a signature compatible with smartpy check_signature is tough as go-tezos seems like generating a different signature then the one that is generated using make_signature of smartpy

c) Building the relayer using rpc because tezos-rpc seems to be tougher.

Accomplishments that we're proud of

a) Built a transferring mechanism for cosmos-token --> tezos FA12 token without signature verification.

b) Built a transferring mechanism for tezos ---> cosmos

c) bash scripts to automate tedious tasks

What we learned

a) Learnt about validating mechanics using cosmos-sdk

b) Using go routines in relayer for continuous watching

c) Revision of bash scripting after a while for automation

d) Learnt more about cosmos-sdk functionalities

e) Learnt the message interface of cosmos-sdk

What's next for bifrost

a) Implementing signature verification system from cosmos --> tezos

b) Generating a easy to use front-end for tezos-cosmos

c) Including finality thereshold on tezos-cosmos side.

d) Improving the relayer to use rpc or rest api

Built With

• bash
• cosmos-sdk
• docker
• golang
• michelson
• python