BitVM2 Proving Ground: Detailed explanation of how GOAT Network creates a native Bitcoin security layer

Since Bitcoin was launched in 2009, since its original design intention was not to support smart contracts and DApps, Bitcoin has been regarded as a value storage tool rather than a dynamic blockchain that can support a powerful second-tier network, resulting in on-chain financial use cases and Not much, and ecosystem participation is relatively low.

Unlike Ethereum, networks such as Optimism and Arbitrum have successfully implemented native bridging mechanisms to inherit the security of the Ethereum main chain, and Bitcoin faces many challenges in implementing similar security models. Therefore, it has been difficult to implement projects that try to establish a security model similar to that of allowing a true Layer 2 network to inherit the security of Bitcoin Layer 1, and the crypto community also needs a safer way to go on the Bitcoin network than ever before. trade on -and this is exactly where GOAT Network comes in.

What is GOAT Network?

GOAT Network is the first decentralized Bitcoin Layer 2 network to share network ownership, using trust minimization design, decentralized sorting network and Optimistic Challenge Protocol (GOAT-OCP) to ensure trust and security. Unlike the "traditional" model of the foundation controlling network operations and generating revenue on its own, GOAT Network is launched with external sorter node operators to allow the community to share block production, transaction sorting responsibilities, and sorter revenue, and sequencer node operations Not only can merchants gain revenue from Bitcoin while helping protect the network, but they can also gain revenue from activities including block production, transaction sorting and maximum withdrawable value (MEV).

What is unique about GOAT Network is that it enables the entire crypto community (including small holders) to lock BTC into the sequencer node and obtain sustainable benefits, and GOAT Network is also compatible with Ethereum virtual machines compared to Lightning Network and Support smart contract functions - From a technical perspective, GOAT Network is more like a general-purpose Bitcoin layer two-layer framework built on the underlying ZK technology, using the underlying zkVM general execution layer, Entangled Rollup Network to share interactive communication layer, and decentralize The sorter sharing layer, etc., provides a generalized component service to Layer 2 to provide a native cross-chain, unified liquid interoperable operation center without cross-chain bridges.

In simple terms, Goat Network is similar to the "Rollup as a Service" service provider in the Ethereum layer 2 system. It can output a general modular paradigm to expand the scale of Bitcoin layer 2 POS chain and provide a sustainable set of BTC benefits. Economic models to ensure the practicality of its narrative.

What role does BitVM2 play?

First, let's take a look at what BitVM is.

BitVM is a computing paradigm that utilizes Taproot upgrades to facilitate the implementation of Turing-complete contracts on Bitcoin without changing network consensus rules and allows verification (rather than execution) of the computation, similar to Optimistic Rollups ). BitVM does not require forks or any changes to the Bitcoin protocol, nor does it congestion the Bitcoin blockchain, because the calculation is not performed on Bitcoin, but is only used to verify using the Bitcoin network when there is a dispute.

The biggest change brought by BitVM is to make Bitcoin programmable, which means developers can explore various use cases without changing the core of Bitcoin. BitVM2 is a major upgrade version of BitVM, making Bitcoin’s Complex calculations are possible. The core idea is: perform complex calculations off-chain and fraud proofs are performed on the chain. This is like playing a "trust game" on Bitcoin. Everyone defaults to the calculation results are correct, but if Someone cheats, and anyone can come forward to expose it. This design cleverly realizes Turing's complete computing verification in Bitcoin's limited scripting capabilities, which is equivalent to installing a "super brain" on Bitcoin, and this brain Still decentralized.

Frankly speaking, only by inheriting native Bitcoin security can we qualify as the real Bitcoin Layer 2. GOAT Network's BitVM2 technology is designed to implement Bitcoin 2 through a complex proof verification system powered by Slashing (Faith). The innovation of the layer network and plans to integrate it into the future GOAT Bridge, the goal is to achieve native security inheritance of the Bitcoin layer. Its decentralization and security innovation on BitVM2 is mainly reflected in the following aspects:

1. True decentralization: Through an innovative permissionless decentralized sorting protocol, all cross-chain messages (including asset deposits, withdrawals and layer 2 state Rollup) will simultaneously obtain consensus between Bitcoin and GOAT Network layer 2 networks. Eliminates dependence on any centralized entity, ensuring true decentralization, while simplifying the trust setting of the BitVM2 protocol, providing equal security.
2. Full verification of Bitcoin without fork: GOAT adopts the most practical BitVM2 protocol, which can directly verify and prove it through Bitcoin scripts, so that it inherits the native security of Bitcoin. Thanks to GOAT's cutting-edge zkMIPS infrastructure, this architecture enables a fast proof generation and verification process.
3. Double Slashing Mechanism: GOAT has launched the first double Slashing Mechanism for Bitcoin Layer 2 network. This mechanism combines the local penalty mechanism of the Bitcoin verification layer with the GOAT consensus layer, thereby significantly reducing the possibility of dishonest behavior in the GOAT Rollup protocol. Potential problems solved by this model include: dual signatures, node downtime, and illegal refund attacks of GOAT Network sorting nodes.

It can be said that GOAT Network not only needs to build another bridge, but also completely transforms the crypto community's view on Bitcoin expansion. The latest BitVM2 Proving Ground (BitVM2 Playground) is the GOAT Network that inherits the native security of Bitcoin network and An important step in achieving a true second-tier status is also a goal that no other agreement can verifiably achieve so far.

BitVM2 Proof Ground: Experience the feeling of running BitVM2 to verify

the valid ZK proof of GOAT Network

BitVM2 Proof Ground (BitVM2 Playground) allows the crypto community to see the first time that verifiable security inheritance, open source verification, mathematical proof of security, and real Bitcoin layer two expansion. The BitVM2 process has 6 key stages, each of which is There are specific security guarantees:

Here, let's take a look at an example:

• Preparation

1. Connect to Bitcoin wallet: Currently, GOAT Network supports UniSat wallet and OKX wallet.

2. Obtain test coins: After receiving the BTC test token, you can start the BitVM2 Playground journey.

• Start the experience

The first step is Bridge-in: initiate a Bridge-in transaction, which will be broadcast to the network.

1. Click the Send button to open the wallet for signature

2. When the transaction is successful, the Check On-chain button will become a clickable state, and click to view the On-chain data.

Step 2 Bridge-Out & Prepare Proof: When a user (such as his name is Bob) wants to bridge some BTC, the operator will use his own balance to pay Bob (called a bridge transaction). The Operator will then generate zkMIPS proof using Bridge-Out transactions and broadcast it to the Bitcoin L1 network through the GOAT Network's decentralized sequencer.

If you were an Operator, what decision would you make?

1. If you choose to forge zkMIPS proof, you need to enter an integer between 0 and 614, and then click the button I'm a bad guy.

2. If no transaction is forged, you can directly click the I'm honest button.

Step 3 Kickoff: Operator pays Bob and broadcasts KickOff transactions and waits for a 14-day challenge.

1. Click the Send button to open the wallet for signature.

2. After the transaction is successful, the Check On-chain button will become a clickable state, and click to view the on-chain data.

Step 4 (4-1) Take-1: If no challenge occurs throughout the 2-week potential challenge period, it means that the Operator is honest and can broadcast Take-1 transactions.

1. Click the Send button to continue.

2. Because of choosing a trust operator, the operator will broadcast the Take-1 transaction and the transaction ends successfully.

Step 4 (4-2) Challenge: Push a challenge transaction, which will cost the output of the KickOff transaction (indicating that the Operator cannot enter the Take-1 transaction).

1. Click the Send button to continue.

2. When the transaction is successful, the Check On-chain button will become a clickable state, and click to view the on-chain data.

Step 5 Assert: Operator must disclose the zkMIPS validator Tapscripts through Assert transaction, otherwise it will not be possible to continue executing the Take-2 path.

1. Click the Send button to continue.

2. When the transaction is successful, the Check On-chain button will become a clickable state, and click to view the on-chain data.

Step 6 (6-1) Disprove: If the challenger finds that there is an error in the Tapscript submitted by the operator, he can issue a Disprove transaction, which will execute the corresponding validation subscript to check whether it is a valid challenge. If the proof is overturned, the operator will lose the locked BTC and the challenger can win the reward.

• Click the Send button to Disprove.

• Operator did not forge zkMIPS proof, the challenge failed, so you can continue to take-2.

3. Operator generates false zkMIPS proof and the challenge is successful.

Step 6 (6-2) Take-2: If no effective rebuttal action occurs before the end of the two-week rebuttal period, the operator will receive compensation from the GOAT alliance in the Take-2 path and receive some additional rewards.

1. Click the Send button to continue.

2. After the transaction is successful, the Check On-chain button will become a clickable state, and click to view the on-chain data.

It should be noted that BitVM2 Playground is just a demonstration, allowing users to see the actual operation of BitVM2 technology and will not create real transactions.

Summarize

Maybe everyone has different goals when entering the crypto industry. Maybe you are not the founder or BUILDer, maybe you can’t program, let alone launch a DApp. GOAT Network is just to break these prejudices, not to keep a close eye on the work, not to be self-supported, and open the door. Going the road, perhaps this is the original intention of launching the "BitVM2 Playground" BitVM2 Playground - allowing everyone to try and experience it in an interesting way.

From a deeper perspective, such an original intention may support the establishment of a community with Bitcoin as the soul and an economy with Bitcoin as the core. Each interaction will help to establish a broader consensus and use Bitcoin for Transactions provide power to the entire Bitcoin economy.