# Bridge

**Overview**

Planck Tunnel is the interoperability layer of the Planck ecosystem, enabling **cross-chain access to compute infrastructure** and seamless **liquidity movement** between over 30 blockchain ecosystems.

Powered by VIA Labs' proven bridge protocol, Planck Tunnel is the **first compute-focused interoperability solution** for AI and DePIN workloads, extending Planck's GPU infrastructure beyond Planck₁ to the entire modular Planck₀ ecosystem.

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#### **How It Works**

Planck Tunnel combines **token interoperability**, **stablecoin rails**, and **compute access** into one seamless experience:

* **Bridge Functionality by VIA Labs**
  * Connects Planck₁ to Ethereum, BNB Chain, Polygon, Avalanche, Cosmos, Polkadot, NEAR, and more
  * Enables native transfers of $PLANCK, USDC, and other ecosystem tokens
  * Supports generalized message passing for smart contract calls and app logic across chains
* **Stablecoin Rails**
  * Native support for **USDC via VIA Labs’ Circle partnership**
  * Enables enterprise-grade fiat-to-chain settlement across all Planck services
  * Simplifies AI app monetization with fiat-native billing
* **Modular Expansion**
  * When new Layer-1s are built on **Planck₀**, they inherit Planck Tunnel by default
  * Each L1 gains automatic access to GPU compute, shared liquidity, and the bridge
  * Plug-and-play for cross-chain DePIN, inference agents, and data oracles

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#### **Why It Matters**

* **For AI Developers**:\
  Launch dApps on any Planck-compatible chain and still access Planck’s GPU cloud — even from Ethereum or Solana.
* **For L1 Builders**:\
  Launch your chain on Planck₀ and instantly gain multi-chain liquidity, stablecoin rails, and AI infra access without additional engineering.
* **For Institutions & DAOs**:\
  Deploy compute-heavy apps (LLMs, on-chain inference, DePIN sensors) without being locked to a single ecosystem or token.

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#### **Security & Audits**

* Planck Tunnel uses **audited bridge architecture** from VIA Labs
* Advanced **zk-proofs and multi-sig validators** for secure asset transfers
* Robust fallback and circuit breaker mechanisms across all routes

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#### **Future Use Cases**

* Cross-chain **AI Agent calls** with compute state sharing
* Shared liquidity across **GPU slot NFT markets**
* Cross-chain access to **Planck AI Studio** for model deployment
* Compute arbitrage between chains

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#### **Stack Integration**

Planck Tunnel is fully integrated with:

* **Planck₁** (GPU-native Layer-1)
* **Planck₀** (Layer-0 for modular AI chains)
* **Planck Console** (bare-metal GPU access)
* **AI Studio** (low-code model orchestration)
* **Planck Bridge UI** (coming soon)

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#### **Designed With VIA Labs**

Planck Tunnel is built in collaboration with [VIA Labs](https://vialabs.xyz/), a cross-chain messaging protocol and trusted Circle partner.

VIA’s infrastructure already powers major dApps and cross-chain DAOs, and its integration enables Planck to offer **enterprise-grade, USDC-native interoperability** across the AI and DePIN stack.