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NEAR Bitcoin light client and chain signatures: BTC DeFi on NEAR

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ExplainerBitcoinDeFiNEAR ProtocolAuroraSatoshiBridgeAllstake$BTC$NEAR

Explains the Aurora-built Bitcoin light client, relayer and NEAR chain signatures that let users deposit native BTC and sign Bitcoin transactions from a NEAR wallet without traditional bridges. Early adopters include SatoshiBridge and Allstake.

Key claims
BTC market cap exceeds $1T and most of it sits idle
Allstake native BTC staking estimated live in about two months
$BTC has a market cap of over 1 Trillion US Dollars. ​ Most of this capital sits idle. ​ Unlocking $BTC liquidity for DeFi & shared security models is the holy grail. ​ @NEARProtocol is doing exactly that, giving rise to a seamlessly connected ecosystem of $BTC-powered chains & apps. ​ Thanks to Chain Signatures, user will also enjoy a fully chain-abstracted UX, navigating the ecosystem without the need for manual bridging or managing dozens of wallets. ​ This is the kind of alpha you have to be en the lookout for anon. ​ ▶ What's happening? ​ TL;DR: $BTC DeFi is coming to @NEARProtocol thanks to Bitcoin Light Clients and Chain Abstraction. ​ But let's unpack that. ​ Users can deposit native $BTC directly on @NEARFoundation through their Bitcoin wallets and use their $BTC in the Near DeFi ecosystem. ​ With Near's Chain Signatures, users can even sign transactions on Bitcoin (or other chains) from their NEAR wallet using MPC-based signing mechanisms to bypass traditional bridges. ​ One wallet. Any chain. So while Chain Signatures solve UX issues in a fragmented multichain world towards the end user, the Bitcoin light client enables the secure transfer of value and enhanced interoperability between NEAR and Bitcoin on an infra layer. ​ ▶ Wait, WTF is a light client? ​ A light client is a simplified version of a blockchain node that can verify transactions without needing to download the entire blockchain. ​ It relies on a small portion of the network's data (block headers) to ensure transactions are valid, making it more efficient and faster to use on resource-limited devices or within other networks. ​ This allows users to interact securely with the blockchain without the heavy storage and processing requirements of a full node. ​ In the case of @NEARProtocol's Bitcoin light client, it functions as a smart contract on the NEAR blockchain that can verify Bitcoin transactions without needing to download the entire Bitcoin blockchain. ​ It reads block headers from the Bitcoin network to confirm the validity of transactions, enabling secure interaction between Bitcoin and NEAR ecosystems, while keeping the process lightweight, fast & efficient. ​ The relayer keeps this smart contract in sync with the Bitcoin network, ensuring the NEAR network is always up-to-date with Bitcoin transactions. This works similar to the light client setup @NEARProtocol uses to power the Rainbow Bridge. For more on that, check my thread here: t.co/1STdst4yJ2 ​ The launch of the Bitcoin Light Client developed by @auroraisnear is hence a major step towards making @ilblackdragon's vision of a chain-abstracted multichain future and natively cross-chain dApps a reality. ​ Let me briefly summarize the big picture and the key components: ​ ☞ Bitcoin Light Client: ​ The light client enables dApps on NEAR to verify Bitcoin transactions, serving as a vital component for building a secure Bitcoin bridge on NEAR. ​ ☞ Relayer Service: ​ The relayer service keeps the light client in sync with the Bitcoin network. It continuously updates the NEAR smart contract with the latest Bitcoin transactions. ​ ☞ Chain Signatures: ​ Near has recently launched a chain signature service. This allows users to sign transactions across dozens of chains from the comfort of their favourite NEAR wallet. ​ ▶ Okay cool, but why does this even matter? ​ This opens the doors for exciting new innovations around $BTC and $NEAR. ​ Let's have a brief look at some of the early app layer adopters: ​ ☞ @SatoshiBridge: ​ Allows direct $BTC deposits into @NEARProtocol and interaction with its dApps. ​ Alongside other DeFi use cases, it will also be integrating Runes & Ordinals, providing them access to programmable execution layers and enabling novel use cases. ​ The light client / relayer setup forms the backbone of the bridge. ​ ☞ @allstake_fi: ​ Utilizes the light client as part of its native $BTC staking solution for shared security (think @babylonlabs_io). ​ The feature is estimated to be live in about two months. ​ ☞ @auroraisnear: ​ The Aurora team developed the Bitcoin Light Client and a relayer service that powers the seamless connectivity. ​ Aurora itself is an ecosystem of virtual chains that integrates a high-performance EVM, @NEARProtocol's trustless Rainbow Bridge, and advanced cross-chain contract call technology, to enable a cohesive, fully chain-abstracted DeFi world. ​ Leveraging the light client architecture and @NEARProtocol's chain signatures, Aurora continues to expand and could become a hub for $BTC-powered DeFi. The future is bright for $NEAR. ​ DYOR anon.
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NEAR is a sharded high performance chain & one of the ecosystems to watch this cycle! 👀 ✦ Parallel Execution ✦ Chain Abstraction ✦ AI Infrastructure ✦ Low Latency & Cost Follow the 🧵 to learn about the emerging @NEARProtocol ecosystem and how you can participate in it!

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What came next · since 15 Aug 2024

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This explainer walks through how things work without making a call on the token, so price moves since publication are shown as market context.

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$NEARNEAR Protocolbullish tone, no call+18%−15% vs BTC
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$BTCBitcoinsince publication+39%

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