How Shibarium Works as Shiba Inu's Layer 2 Network on Ethereum

Shibarium is a Layer 2 (L2) blockchain built on top of Ethereum that processes transactions off-chain in batches before settling them on the Ethereum mainnet. 

Launched on August 16, 2023, it was designed to solve two specific problems Shiba Inu (SHIB) faced on Ethereum: high gas fees and slow throughput. By June 2026, the network had surpassed 1.5 billion cumulative transactions and maintained average gas fees between $0.001 and $0.005 per transaction, compared to Ethereum mainnet fees that can exceed $20 during periods of high demand.

Why Ethereum Alone Was Not Enough for SHIB

Shiba Inu started as a memecoin on Ethereum in August 2020, created by a pseudonymous founder known as Ryoshi. As the project grew beyond its origins into a broader ecosystem that included ShibaSwap (a decentralized exchange), Shiboshi NFTs, and planned gaming and metaverse products, conducting all activity directly on Ethereum mainnet became impractical.

The core limitations were straightforward:

• Every transaction on Ethereum required gas fees paid in ETH, which during periods of high demand regularly exceeded $20 per transaction.
• Ethereum's base layer processes only around 15 transactions per second, making it unsuitable for high-frequency use cases like gaming or NFT trading.
• Running decentralized applications (dApps) at scale on Ethereum mainnet meant passing those costs directly to users, which was a significant barrier.

A Layer 2 solution was the logical answer. L2 networks handle execution separately from the main chain and only submit compressed proofs or state updates back to Ethereum, inheriting its security without overloading it.

How Does Shibarium Actually Process Transactions?

Shibarium uses a two-layer architecture built on two core components: Heimdall and Bor.

Bor is the execution layer. It handles transaction processing, smart contract execution, and block production. When a user sends a transaction on Shibarium, Bor processes it off-chain within the L2 environment without touching Ethereum directly.

Heimdall is the consensus and checkpointing layer. It watches Bor's activity, aggregates block data, and periodically submits checkpoint transactions to Ethereum mainnet. These checkpoints function as a running record of Shibarium's state, anchored to Ethereum's security.

This architecture means that:

• Individual transactions are fast and cheap because they happen entirely on Shibarium.
• The final record of those transactions is secured by Ethereum's validator network via checkpointing.
• Users can bridge assets between Ethereum and Shibarium using a Plasma Bridge or a Proof-of-Stake (PoS) bridge.

Shibarium is fully EVM-compatible, meaning smart contracts written for Ethereum can run on it with minimal or no changes. This lowers the technical barrier for developers already familiar with the Ethereum toolset.

What Is the Role of BONE, SHIB, and LEASH in Shibarium?

The Shiba Inu ecosystem runs on three primary tokens, each with a distinct function within Shibarium's design.

BONE is the network's gas token and governance token. With a maximum supply of 250 million tokens, it is used to pay transaction fees on Shibarium. 

Validators who secure the network must stake BONE as collateral to participate in the consensus process. BONE holders also vote on protocol proposals through the Doggy DAO, a decentralized autonomous organization that governs ShibaSwap and influences Shibarium's development. A two-thirds majority among validators is required to confirm state changes, which is a standard Byzantine fault-tolerance threshold.

SHIB is the foundational token of the ecosystem. Shibarium's fee structure automatically routes 70% of all base transaction fees toward SHIB burns, permanently removing those tokens from circulation. The remaining 30% goes toward network maintenance. This means every transaction on Shibarium incrementally reduces SHIB's total supply. 

With approximately 589 trillion SHIB remaining in circulation as of mid-2026 (down from an original supply of 1 quadrillion), the burn rate is a closely watched metric. BONE tokens accumulated in Shibarium's burn contracts are also converted to SHIB for burning upon reaching predetermined thresholds.

LEASH is a limited-supply token used in community reward schemes and ecosystem initiatives. It was among the tokens held in the Shibarium bridge that was exploited in September 2025.

What Happened with the Shibarium Bridge Exploit in September 2025?

No technical overview of Shibarium in 2026 is complete without addressing the September 12, 2025 bridge exploit, which was the network's most significant security incident since launch.

An attacker used a flash loan to borrow 4.6 million BONE tokens from ShibaSwap without collateral. 

A flash loan is a DeFi mechanism that allows a large sum to be borrowed and repaid within a single transaction. With that much BONE, the attacker gained control of 10 out of 12 validator signing keys, which gave them a two-thirds majority over the network's consensus process. Using that control, they signed a malicious state to the Shibarium bridge and drained approximately 224.57 ETH and 92.6 billion SHIB. 

Primary sources including The Block and CoinDesk placed the confirmed loss at approximately $2.4 million at the time of the exploit. A later accounting by the Shiba Inu team, which tallied the total value of all 17 types of tokens taken including LEASH, KNINE, ROAR, and others, put the figure above $4 million.

SHIB's price dropped 11.5% within 24 hours of the exploit, while BONE fell between 38% and 43.5%.

In response, the development team paused all staking and unstaking functions, revoked root chain manager access, moved stake manager funds to a 6-of-9 multisig hardware wallet, and suspended bridge operations. K9 Finance DAO, whose KNINE tokens were among those targeted, blacklisted the attacker's wallet address and blocked seven attempts to sell approximately $700,000 worth of KNINE. 

K9 Finance then offered a 5 ETH bounty (worth around $23,000 at the time) for the return of the stolen assets. The attacker responded on-chain demanding 50 ETH. The Shiba Inu team then formally offered a 50 ETH bounty via their "Shib Deployer 2" address, contingent on full return of all 16 non-KNINE tokens and a whitehat disclosure report. The attacker never accepted, and the bounty contract funds were later returned to contributors.

The exploit led to a mandatory 7-day finalization period being introduced for bridge withdrawals as an additional safeguard. The attack worked because one entity was able to borrow enough BONE through a flash loan to swing two-thirds of validator consensus. It is a structural risk in delegated proof-of-stake systems when governance tokens can be borrowed at scale without a time lock.

What Is the Current State of Shibarium in 2026?

As of June 2026, Shibarium has processed over 1.5 billion cumulative transactions across 272 million activated wallet addresses and maintains a network of over 100 active validator nodes. 

Daily transaction counts have been variable and relatively low: since mid-April 2026, daily figures have ranged between roughly 700 and 7,400. BONE holder addresses surpassed 93,000 in late April 2026, with an 87% weekly increase, though analysts noted a portion of that growth was tied to validator re-delegations rather than purely organic new user adoption.

The most significant item on Shibarium's current roadmap is the Alpha Layer, a Layer 3 (L3) solution built on top of Shibarium. It integrates Fully Homomorphic Encryption (FHE) through a partnership with cryptography firm Zama. FHE allows computations to be performed on encrypted data without ever decrypting it, which would enable private smart contracts and confidential transaction balances on the network. 

Developers targeted Q2 2026 for this upgrade, though analysts at Messari noted that production-grade FHE workloads remain in early experimental stages across the broader blockchain industry.

Chainlink's Cross-Chain Interoperability Protocol (CCIP) integration also went live, enabling SHIB, BONE, LEASH, and TREAT tokens to move across 19 blockchain networks beyond Ethereum.

As of June 10, 2026, SHIB is trading at approximately $0.00000462, with a market cap of around $2.72 billion.

Conclusion

Shibarium is a functioning Layer 2 network that uses a dual-layer architecture (Bor for execution, Heimdall for checkpointing) to process transactions off Ethereum's mainnet at a fraction of the cost. BONE serves as its gas and governance token, and 70% of every transaction's base fee is automatically converted into SHIB burns. The network has surpassed 1.5 billion cumulative transactions since its August 2023 launch, though daily activity remains low and inconsistent. The September 2025 bridge exploit exposed a validator concentration vulnerability that the team has since partially addressed through multisig controls and withdrawal finalization delays. The Alpha Layer with FHE privacy and CCIP cross-chain support represent the next phase of the network's technical development.

Resources

1. Shibarium Official Documentation – Staking and Validators – Official guide to BONE staking, validator delegation, and reward mechanics on Shibarium.
2. Shiba Inu Docs – Staking Manager Architecture – Technical documentation on Shibarium's Proof-of-Stake contract structure, validator roles, and Byzantine fault tolerance.
3. Shibarium FAQ – shibarium.shib.io – Official answers on BONE staking, bridge mechanics, and how validators function within Shibarium.
4. The Block – Shibarium Bridge Suffers Sophisticated Flash Loan Attack, With $2.4 Million Drained – Primary source reporting on the September 12, 2025 exploit with confirmed loss figures.
5. Bitcoinist – Shiba Inu Team Issues Explosive Update on Shibarium Exploit – Details on the team's $4.1 million accounting, the 50 ETH bounty offer, and the list of 17 stolen token types.
6. Coin Edition – After $4.1M Bridge Exploit, Shiba Inu Dangles 50 ETH Bounty for Hacker's Cooperation – Coverage of the formal 50 ETH on-chain bounty offer and its conditions.
7. CoinStats AI – Shiba Inu Investment Analysis June 2026 – June 2026 analysis covering 1.5 billion transactions, 70%/30% fee split, validator structure, and SHIB circulating supply.
8. CoinCheckup – Shiba Inu Coin Burn Mechanics – Breakdown of Shibarium's 70% base fee burn allocation and the BONE-to-SHIB conversion mechanism