# Cross Chain

<figure><img src="/files/I6BMb5MxyqIhDZNFOK5H" alt=""><figcaption></figcaption></figure>

### BMT: An Omnichain Token

Over the past few months, we’ve been working closely with LayerZero to make BMT fully cross-chain, ensuring accessibility and flexibility across multiple ecosystems. BMT will be available on both Solana and BNB Chain, bridging the gap between two major ecosystems:

* Solana — Our most visited chain on Bubblemaps, with a strong user base and growing activity.
* BNB Chain — Our entry point into the EVM world and our first chain integrated on Bubblemaps

To maintain accessibility, the initial circulating supply at TGE will be evenly split between Solana and BNB Chain.  BMT will follow LayerZero’s Omnichain Fungible Token (OFT) standard, allowing seamless transfers between supported chains. The Intel Desk will eventually be accessible on both chains. Native cross-chain movements will be supported using Stargate and other bridges soon, making transfers between chains even smoother

The Intel Desk will launch first on Solana, as it’s the chain with the most requested investigations and our most active user base. We also want to add the Intel Desk natively on BNB Chain, so users won’t need to bridge to participate—they’ll be able to use it directly on BNB. The submission and voting process will be handled across both chains and aggregated for the final result.

### LayerZero V2 OFT&#x20;

The Omnichain Fungible Token (OFT) Standard allows fungible tokens to be transferred across multiple blockchains without asset wrapping or middle chains.

This standard works by either debiting (<mark style="color:red;">**burn**</mark>) tokens on the source chain, sending a message via LayerZero, and delivering a function call to credit (<mark style="color:green;">**mint**</mark>) the same number of tokens on the destination chain.

This creates a unified supply across all networks that the OFT supports.

* [LayerZero v2 Documentation](https://docs.layerzero.network/v2/developers/evm/oft/quickstart)
* [LayerZero Audits](https://github.com/LayerZero-Labs/LayerZero-v1/tree/main/audit)

### BMT  (Solana) - Native SPL Token

BMT is deployed as a Solana SPL token, serving as the native and primary version of the asset. As part of the Omnichain Fungible Token (OFT) standard, it enables seamless cross-chain transfers without requiring wrapped assets. When BMT is sent to another blockchain, the Solana program <mark style="color:red;">**burns**</mark> the tokens while LayerZero relays the transaction. Upon receipt, an equivalent amount is <mark style="color:green;">**minted**</mark> on the destination chain, ensuring a consistent and unified supply across all supported networks.

<table data-header-hidden><thead><tr><th width="201"></th><th width="468"></th></tr></thead><tbody><tr><td>Blockchain</td><td>Solana (SPL)</td></tr><tr><td>Name</td><td>Bubblemaps</td></tr><tr><td>Ticker</td><td>BMT</td></tr><tr><td>Token Address</td><td>FQgtfugBdpFN7PZ6NdPrZpVLDBrPGxXesi4gVu3vErhY</td></tr><tr><td>Link</td><td><a href="https://solscan.io/token/FQgtfugBdpFN7PZ6NdPrZpVLDBrPGxXesi4gVu3vErhY">Solscan</a></td></tr></tbody></table>

### OFT Program (Solana)

The OFT Program on Solana is responsible for handling cross-chain transactions using LayerZero’s infrastructure. It manages the <mark style="color:red;">**burning**</mark> and <mark style="color:green;">**minting**</mark> of tokens during transfers, ensuring that the total supply remains unified across multiple blockchains. This program verifies and processes incoming messages from LayerZero, enabling secure, decentralized, and trust-minimized cross-chain interoperability for BMT.

<table data-header-hidden><thead><tr><th width="195"></th><th width="468"></th></tr></thead><tbody><tr><td>Blockchain</td><td>Solana</td></tr><tr><td>Program Address</td><td>BCE3naS4LHAfGeiN34dTTR42vBcKMC8tafF8SBDTAD5c</td></tr><tr><td>Link</td><td><a href="https://solscan.io/token/FQgtfugBdpFN7PZ6NdPrZpVLDBrPGxXesi4gVu3vErhY">Solscan</a></td></tr></tbody></table>

### OFT Token (BNB Chain)

BMT is also deployed as a BEP-20 token on BNB Chain, functioning as an Omnichain Fungible Token (OFT) within LayerZero’s ecosystem. When users transfer BMT from Solana, the BNB Chain contract mints an equivalent amount, ensuring a 1:1 supply balance between networks. Similarly, when BMT is sent back to Solana, the BNB contract burns the tokens before the Solana program re-mints them. This integration allows BMT to move seamlessly between chains while maintaining its total supply without the need for wrapped assets.

<table data-header-hidden><thead><tr><th width="197"></th><th width="468"></th></tr></thead><tbody><tr><td>Blockchain</td><td>BNB Chain (BEP20)</td></tr><tr><td>Name</td><td>Bubblemaps</td></tr><tr><td>Ticker</td><td>BMT</td></tr><tr><td>Token address</td><td>0x7d814b9ed370ec0a502edc3267393bf62d891b62</td></tr><tr><td>Contract name</td><td>MyOFT</td></tr><tr><td>Link</td><td><a href="https://bscscan.com/token/0x7d814b9eD370Ec0a502EdC3267393bF62d891B62">Bscscan</a></td></tr></tbody></table>


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