Tranquil Finance & Keystone Partnership: Secure Signing on Harmony Blockchain

Tranquil Finance
3 min readMar 29, 2022


Tranquil Finance has partnered with Keystone Wallet, a 100% air-gapped QR code communication hardware wallet for Bitcoin, Ethereum, USDT, BCH, XRP, Tron, LTC, Dash, Polkadot, Kusama and 1000+ other cryptocurrencies. Through this partnership, Tranquil Finance has added its smart contract ABIs to the ever-growing Smart-Contract Metadata Registry to combat blind signing, allowing for an even more safe interaction with the second largest TVL DeFi protocol on the Harmony blockchain.

From now on Keystone wallet users will be able to authorize all Tranquil Finance related transactions prior to signing them by visually verifying the authenticity of the contract. This is achieved by loading the ABI file in the Keystone hardware wallet with the SD card slot. The 4 inch touch screen provides a visual confirmation of the ABI’s authenticity, allowing users to double check the dapp they are about to interact with so they won’t need to blindly trust the dapp they think they are interacting with.

How transactions will appear when using Keystone for Tranquil Finance.

The growing number of ABIs in the Smart-Contract Metadata Registry will not only help bolster security for DeFi users on the Harmony blockchain, but also the whole DeFi industry as a whole. This new partnership provides users with another layer of security so users can avoid falling victim to imposters impersonating Tranquil Finance’s dapp/website, effectively tackling the blind signing issue that is still plaguing dapps and prevent further victims in the future.

Teams who are interested in helping to make their dapps safer for all of their users can read and follow up on Keystone’s Smart-Contract Metadata Registry here! We welcome any teams who are also interested in helping make web3 a safer place to use by allowing their dapps to be validated and free from blind signing.

About Tranquil Finance

Tranquil Finance is a multiprimitive DeFi super app for the Harmony blockchain. It is the first DeFi protocol developed as part of the Defira metaverse, which adds a rich GameFi layer to Tranquil Finance’s DeFi features. The protocol supports three major DeFi primitives: DEX, lending, and liquid staking.

Tranquil DEX is our newest Uniswap-based constant product DEX primitive, allowing users to trade tokens in a permissionless way. This feature is available through the Defira frontend and game. We are in the process of migrating Tranquil Finance’s other primitives into the world of Defira.

Tranquil Lending is a money market, which allows users to supply and borrow assets, while receiving or paying interest in a completely permissionless and decentralized way. Borrowing and lending interest is set based on market demand, and loans are over-collateralized to ensure solvency. The smart contracts are forked from Compound, and the core Comptroller and market contracts have been audited by CertiK.

Tranquil stONE allows users to stake their ONE for rewards while at the same time receiving a liquid staking token (stONE) which can be used in DeFi dapps such as Tranquil Lending to earn additional yield. We envision stONE becoming the currency of choice in Harmony, as ONE naturally loses value due to inflation if it is not staked.

Website | Twitter | Discord | Documentation

About Keystone

Keystone is a 100% air-gapped QR code hardware wallet designed to maximize attack cost, minimize trust, prevent potential human error, avoid single-point-of-failures and boost interoperability. It was officially integrated with MetaMask in December 2021.

Ever since its founding and successful funding of its very first premium hardware wallet (Cobo Vault Ultimate) in 2018, the Keystone team has earned the trust of both consumers and enterprises for their impenetrable security and high-end machinery of their open-source hardware wallet. Various achievements have been successfully accomplished by the team to improve hardware security for the global crypto community.

Website | Twitter | Discord | Telegram | GitHub



Tranquil Finance

Algorithmic Money Market Protocol for Harmony ONE