🔺 Architecture

STELLAR and multichain: hybrid multi-blockchain system.

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🔹 Architectural Diagram 1

This architectural diagram illustrates the multi-chain flow of the PORTAL POINT ecosystem. The Telegram Mini-App serves as the user-facing interface where interactions are recorded and TON payments are processed. All complex operations are handled by the PORTAL POINT Backend, which verifies user actions and manages cross-chain bridging.

Telegram Mini-App (TON Payments)
         │
         │ (User actions, TON payments)
         ↓
    PORTAL POINT Backend (Off-chain verifier, API)
         │
         ├─────────────────────────────────────────────────┐
         │                                                 │
         │ (Verify and sign)                              │ (Generate content, 
         │                                                 │  bridge to Polygon)
         ↓                                                 ↓
    Stellar Blockchain (Soroban contracts,               Polygon (ERC-721 NFTs)
      Stellar Assets, PORTAL CORE)                           │
         │                                                 │
         │ (Cross-chain bridge)                           │ (List on Rarible)
         └─────────────────────────────────────────────────┘
         │                                                 │
         │ (Supply assets to HERO2QUEST)                  │ (Secondary market)
         ↓                                                 ↓
    HERO2QUEST Game                                    Rarible Marketplace
         (via Stellar Horizon API)                         (Polygon)

The system diverges into two specialized blockchain layers:

• Stellar Blockchain serves as the core validation layer, hosting Soroban smart contracts, Stellar Assets, and the PORTAL CORE registry. It handles high-frequency operations, reputation attestations, and supplies assets to partner games like HERO2QUEST.

• Polygon functions as the creative economy layer, where AI-generated content is minted as ERC-721 NFTs and automatically listed on the Rarible Marketplace for secondary trading.

The Cross-Chain Bridge connects these two ecosystems, ensuring asset portability and synchronized metadata while maintaining compliance with Telegram's policies by keeping all complex blockchain interactions outside the mini-app environment.

🔹 Architecture: Cross-Platform Multi-Chain Ecosystem Based on Stellar

Our architecture allows using TON as an "entry ticket" to the PORTAL POINT multi-chain ecosystem, where Stellar becomes the main blockchain for economy and reputation, and Polygon serves as a bridge to the NFT marketplace world through Rarible.

STELLAR and multichain: hybrid multi-blockchain system.

🔹 PORTAL POINT: Cross-Platform Ecosystem Architecture

PORTAL POINT is a hybrid multi-blockchain system that synthesizes game mechanics, user creativity, and Web3 infrastructure. The project architecture is based on the interaction of three key components:

• Telegram mini-app - mass entry point using TON for payments;

• Stellar blockchain - core validation, economy, and reputation system;

• Polygon with Rarible - creative economy layer and NFT marketplace.

This design forms a connected ecosystem for exploring NFT worlds, creating comics, and publishing them as tokenized assets.

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Architectural Diagram 2

┌─────────────────────────────────────────────────────────────────────────┐
│                        Telegram Mini-App (TON Layer)                    │
│                                                                         │
│  ┌─────────────────┐  ┌─────────────────┐  ┌─────────────────────────┐  │
│  │  User Interface │  │ TON Wallet      │  │ Game Interaction        │  │
│  │  (WebApp)       │  │ (TonConnect)    │  │ (Portals, Grabbers)     │  │
│  └─────────┬───────┘  └─────────┬───────┘  └─────────┬───────────────┘  │
│            │                    │                    │                  │
└────────────┼────────────────────┼────────────────────┼──────────────────┘
             │ (Signed actions)   │ (TON payments)     │ (Activity data)
             │                    │                    │
             └────────────────────┼────────────────────┘
                                  │
                    ┌─────────────▼─────────────┐
                    │  PORTAL POINT Backend     │
                    │  (Off-chain Services)     │
                    │                           │
                    │  • Attestation Generator  │
                    │  • Signature Validator    │
                    │  • Content Bridge         │
                    └─────────────┬─────────────┘
                                  │
            ┌─────────────────────┼─────────────────────┐
            │                     │                     │
    ┌───────▼────────┐    ┌──────▼──────┐    ┌────────▼──────────┐
    │ Stellar Core    │    │ TON NFT     │    │ AI Generation     │
    │ (Validation Layer) │ │ Processing  │    │ (Stable Diffusion)│
    │                 │    │             │    │                   │
    │ • Soroban       │    │ • UUID      │    │ • Image Creation  │
    │   Contracts     │    │   Assignment│    │ • Metadata Gen    │
    │ • PORTAL CORE   │    │ • Metadata  │    │ • IPFS Upload     │
    │   Registry      │    │   Storage   │    │                   │
    │ • Asset Minting │    │             │    └────────┬──────────┘
    │ • Reputation    │    └──────┬──────┘             │
    │   Attestation   │           │                    │
    └───────┬─────────┘           │                    │
            │                     │                    │
            │ (Stellar Assets)    │ (Proof of NFT)     │ (Content Hash)
            │                     │                    │
    ┌───────▼─────────────────────┼────────────────────┼──────────────┐
    │ Cross-Chain Bridge System   │                    │              │
    │                             │                    │              │
    │ ┌─────────────────────────┐ │                    │              │
    │ │ Stellar Lock Contract   │ │                    │              │
    │ │ (Soroban)               │ │                    │              │
    │ │ • Asset Locking         │ │                    │              │
    │ │ • Oracle Verification   │◄┼────────────────────┘              │
    │ └─────────────┬───────────┘ │                                   │
    │               │             │                                   │
    │               │ (Bridge Proof)                                  │
    │               │             │                                   │
    │ ┌─────────────▼───────────┐ │                                   │
    │ │ Polygon Mint Contract   │ │                                   │
    │ │ (ERC-721)               │ │                                   │
    │ │ • Wrapped NFT Creation  │ │                                   │
    │ │ • Rarible Auto-Listing  │ │                                   │
    │ └─────────────┬───────────┘ │                                   │
    │               │             │                                   │
    └───────────────┼─────────────┼───────────────────────────────────┘
                    │             │
            ┌───────▼─────┐ ┌─────▼──────┐
            │  Stellar    │ │  Polygon   │
            │  Ecosystem  │ │  Ecosystem │
            │             │ │            │
            │ • HERO2QUEST│ │ • Rarible  │
            │   Integration│ │   Marketplace│
            │ • DeFi Apps │ │ • Other    │
            │ • Staking   │ │   Marketplaces│
            │ • Governance│ │            │
            └─────────────┘ └────────────┘

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1. Mass Engagement Layer: Telegram Mini-App with TON Integration

The primary entry point is the Telegram mini-app, where:

• Users explore "portals" - NFT worlds with unique visual and narrative identities;

• Interaction within the app uses TON transactions exclusively for payments;

• Each game action generates a verifiable attestation that is later anchored in Stellar;

• Received TON NFTs contain a unique UUID and PORTAL POINT validator signature.

Technical implementation:

• Only TON wallets (TonConnect) are used inside the mini-app;

• All complex operations (content generation, validation, bridging) are performed outside Telegram;

• Users receive TON NFTs with metadata in IPFS containing:

  {
    "portal_nft": {
      "uuid": "550e8400-e29b-41d4-a716-446655440000",
      "content_hash": "QmXYZ...",
      "signature": "0x123..."  // PORTAL POINT validator signature
    }
  }

2. Core Validation and Economy: Stellar Blockchain

Stellar serves as the main blockchain for the entire economy and reputation system:

Stellar Smart Contracts (Soroban) handle:

• Asset distribution logic;

• Reputation attestation verification;

• Cross-chain bridge management;

• Clawback mechanisms for single-use assets.

Stellar Custom Assets:

• PORTAL worlds are issued as Stellar Assets with IPFS metadata;

• Grabber Keys - utility NFTs for content access;

• $PORTAL token - ecosystem governance and staking.

The choice of Stellar is architecturally justified:

• Transaction confirmation in 3-5 seconds;

• Negligible fees (~0.000001 XLM);

• SCP consensus mechanism provides high throughput;

• Built-in CLAWBACK and AUTHORIZATION_REQUIRED flags for controlled assets.

3. Creativity and Monetization Layer: Polygon + Rarible

Polygon is used as a bridge to the EVM ecosystem for monetization through Rarible:

Functionality:

• Catalog and visualization of worlds via web interface;

• Advanced comic book editor;

• Stable Diffusion integration for content generation;

• Automatic listing on Rarible Marketplace.

Technical implementation:

• Creative works (comics, AI generations) are minted as ERC-721 on Polygon;

• Automatic synchronization with Rarible API for instant listing;

• Royalties are distributed through Rarible Protocol smart contracts.

4. System Core: PORTAL CORE on Stellar

PORTAL CORE - a registry and set of smart contracts deployed on Stellar, providing:

Cross-platform synchronization:

• Indexing and mirroring of assets between blockchains;

• Metadata consistency through IPFS CID;

• Ownership tracking and transaction history.

Stellar ⇔ Polygon bridge (decentralized):

1. Locking: NFT is locked in Soroban contract on Stellar via clawback;
2. Verification: Oracle network confirms the lock;
3. Minting: Wrapped ERC-721 is minted on Polygon;
4. Listing: Automatic publication on Rarible.

5. Cross-Platform Identification Mechanism

Decentralized verification process:

Outside Telegram (web interface portalpoint.io):

1. User connects TON wallet;
2. System finds PORTAL NFT with valid signature;
3. User enters Stellar (G...) and Polygon (0x...) addresses;
4. Bridge is initiated via TON NFT ownership proof.

Decentralized bridge

solidity:

contract PortalCrossChainBridge {
    function claimOnPolygon(
        bytes32 tonTxHash,      // TON transaction proof
        bytes32 uuid,           // NFT identifier
        bytes validatorSig,     // PORTAL validator signature
        address polygonRecipient
    ) external {
        require(PortalOracle.verifyProof(tonTxHash, uuid, validatorSig));
        
        uint256 tokenId = uint256(uuid);
        portalNFT.mint(polygonRecipient, tokenId);
        
        RaribleRegistry.listToken(address(this), tokenId, polygonRecipient);
    }
}

6. Hybrid Marketplace Model

Primary sales (on Stellar):

• Users sell Stellar NFTs through Soroban contracts;

• Atomic swaps of Stellar assets;

• Low entry barrier, ideal for microtransactions.

Secondary market (on Polygon via Rarible):

• Creative works (comics, AI collections) are listed on Rarible;

• PORTAL CORE provides verified metadata;

• Automatic royalty distribution: creator (70%), platform (15%), world rights holders (15%).

End-to-end identification: A unified Decentralized Identifier (DID) links:

• TON address (payments in Telegram);

• Stellar account (economy and reputation);

• Polygon wallet (trading on Rarible).

7. HERO2QUEST Integration: Game Asset Supply

PORTAL POINT functions as an Asset Generation Engine for HERO2QUEST:

Supply architecture:

1. Farming in Telegram: Users interact with portals;

2. Verification outside Telegram: Off-chain verifier checks activity;

3. Utility NFT issuance: Stellar Asset with clawback is minted as a game item;

4. Import to HERO2QUEST: HERO2QUEST server checks NFT via Horizon API and performs clawback to credit the item to inventory.

Data Flow:

Telegram Mini App → Off-chain Verifier → Stellar (Mint NFT + XLM) → HERO2QUEST → Game Inventory

8. Architectural Advantages

Separation of responsibilities:

• TON: Payments in Telegram, low entry barrier;

• Stellar: High-performance economy, reputation, validation;

• Polygon: Access to EVM liquidity and Rarible.

Compliance and security:

• Only TON operations in Telegram;

• Key logic and assets in Stellar;

• Decentralized verification via multi-signature.

Scalability:

• Stellar: 3000+ TPS for microtransactions;

• Polygon: Low fees for NFT trading;

• Automatic load balancing.

Integrability:

• Any project on Stellar can verify user reputation;

• Standardized protocol for cross-chain attestations;

• Open APIs for partner integrations.

This architecture creates a complete multi-chain ecosystem where each blockchain performs its specialized function, providing a seamless user experience from simple interaction in Telegram to complex economic activity in Web3.