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https://github.com/keep-network/tbtc-v2

Trustlessly tokenized Bitcoin everywhere, version 2
https://github.com/keep-network/tbtc-v2

bitcoin cryptocurrency ethereum

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Trustlessly tokenized Bitcoin everywhere, version 2

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README 

        
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= tBTC v2



https://github.com/keep-network/tbtc-v2/actions/workflows/contracts.yml[image:https://img.shields.io/github/actions/workflow/status/keep-network/tbtc-v2/contracts.yml?branch=main&event=push&label=Core%20contracts%20build[Core contracts build status]]

https://github.com/keep-network/tbtc-v2/actions/workflows/typescript.yml[image:https://img.shields.io/github/actions/workflow/status/keep-network/tbtc-v2/typescript.yml?branch=main&event=push&label=SDK%20build[SDK build status]]

https://github.com/keep-network/tbtc-v2/actions/workflows/yearn.yml[image:https://img.shields.io/github/actions/workflow/status/keep-network/tbtc-v2/yearn.yml?branch=main&vent=push&label=Yearn%20contracts%20build[Yearn contracts build status]]

https://github.com/keep-network/tbtc-v2/actions/workflows/system-tests.yml[image:https://img.shields.io/github/actions/workflow/status/keep-network/tbtc-v2/system-tests.yml?branch=main&event=schedule&label=System%20tests[System tests status]]

https://github.com/keep-network/tbtc-v2/actions/workflows/monitoring.yml[image:https://img.shields.io/github/actions/workflow/status/keep-network/tbtc-v2/monitoring.yml?branch=main&event=push&label=Monitoring%20build[Monitoring build status]]



https://docs.threshold.network/fundamentals/tbtc-v2[image:https://img.shields.io/badge/docs-website-green.svg[Docs]]

https://discord.gg/threshold[image:https://img.shields.io/badge/chat-Discord-5865f2.svg[Chat with us on Discord]]



For many Bitcoin holders, one question remains: how can I move my assets across

blockchains to make them more useful while maintaining Bitcoin's core values?



Existing solutions that bridge Bitcoin to Ethereum require users to send their

Bitcoin to an intermediary in exchange for an Ethereum token that represents the

original asset. This centralized model requires you to trust a third party and

is prone to censorship, threatening Bitcoin's promise of secure, permissionless

decentralization.



Threshold aims to solve this problem with tBTC v2.



The second generation of tBTC is a truly decentralized bridge between Bitcoin

and Ethereum. It provides Bitcoin holders permissionless access to DeFi and the

expanding web3 universe.



tBTC v2 replaces centralized intermediaries with a randomly selected group of

node operators on the Threshold Network. This group of independent operators

works together to secure your deposited Bitcoin through threshold cryptography.

That means tBTC v2 requires a majority threshold agreement before operators

perform any action with your Bitcoin. By rotating the selection of operators,

tBTC v2 protects against any malicious individual or group of operators seizing

control. Unlike other solutions on the market, users on tBTC v2 are reliant on

math, not hardware or people. Additionally, tBTC v2 is open and accessible to

anyone.



tBTC v2 allows anyone to use Bitcoin in the expanding DeFi and Web3 universe

without a third-party intermediary.



toc::[]



== Overview



tBTCv2 uses the

link:https://github.com/keep-network/keep-core/tree/main/solidity/random-beacon[Random

Beacon] and link:https://github.com/keep-network/sortition-pools[Sortition Pool]

to generate governable-sized (starting at 51-of-100)

link:https://eprint.iacr.org/2019/114.pdf[threshold ECDSA]

Bitcoin wallets at a governable frequency (starting weekly). The youngest

wallet accepts new deposits, and the oldest wallet serves redemptions.



Depositing Bitcoin into the tBTCv2 bridge grants a transferable Bank balance, which

can be used to mint a supply-pegged ERC-20: tBTC. For an in-depth explanation

about the design, see link:docs/rfc/rfc-1.adoc[RFC 1: tBTCv2 Design].



== Repository structure



This repository contains the following modules:



- link:solidity/[Core smart contracts],

- link:typescript/[SDK TypeScript library],

- link:system-tests/[System tests]

- link:docs/[Documentation],

- link:yearn/[Yearn vault smart contracts],

- link:monitoring/[Monitoring tool],

- link:cross-chain/[Cross-chain smart contracts].



Please refer module-level README for specific module's installation and

usage instructions.



== Contributing



Contributions are always welcome! Feel free to open any issue or send a

pull request. Please see link:CONTRIBUTING.adoc[CONTRIBUTING.adoc] to

learn more.



== Security



Please see link:SECURITY.adoc[SECURITY.adoc] to learn more about

tBTC v2 security policy.