HOT Omni Balance

Overview

HOT Omni Balance is a cross-chain representations of assets from various networks. It allow unified interaction with tokens across Ethereum-compatible chains, Solana, TON, Bitcoin, Zcash, and more.

HOT Omni Balance standardizes work with tokens secured by:

• HOT Omni Bridge – supporting EVM-compatible chains, Solana, TON, Stellar

• Lite Client Bridges – for trustless Bitcoin and Zcash bridging.

Once bridged, all balances are stored in a on-chain "database" smart contract, hosted on the NEAR blockchain. This contract acts as the canonical source of truth for all Omni Token balances, enabling secure and composable interactions.

Trustless Intents

Intents are signed user instructions that define specific actions to be executed on the HOT Omni Balance. Intents are signed off-chain by user and executed on-chain by any account, allowing trustless and gasless execution on behalf of the user.

Intent Types

HOT Protocol currently supports the following core intent types for Omni Tokens:

Intent Type	Purpose	Description
transfer	Token transfer	Sends tokens from one user to another.
token_diff	Swap	Atomically swaps X of Token A for Y of Token B at a fixed rate.
mt_withdraw	Withdrawal	Withdraws tokens to their native chain via the appropriate bridge.

All intent executions update the on-chain balance state and may trigger additional events or bridge logic.

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JSON Intent Examples

1. Transfer

{
  "intent": "transfer",
  "from": "alice.near",
  "to": "bob.near",
  "token": "nep141:usdc.omni.hot.tg:eth",
  "amount": "1000000",
  "nonce": "1749735276000003203"
}

2. Token Swap (token_diff)

{
  "intent": "token_diff",
  "diff": {
    "nep141:usdc.omni.hot.tg:eth": "-1000000",
    "nep141:dai.omni.hot.tg:eth": "995000"
  },
  "referral": "intents.tg",
  "nonce": "1749735276000003204"
}

3. Withdraw (mt_withdraw)

{
  "intent": "mt_withdraw",
  "token": "btc.omni.hot.tg:mainnet",
  "amount": "100000",
  "recipient": "bc1qxy2kgdygjrsqtzq2n0yrf2493p83kkfjhx0wlh",
  "nonce": "1749735276000003205"
}

Each intent must be accompanied by a valid cryptographic signature using the signer’s chain-specific format.

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Supported Signature Standards

To enable seamless integration across chains, HOT Omni Balance supports native signature formats per network:

Network	Signature Format	Standard
Ethereum / EVM	eth_sign, eth_signTypedData_v4	EIP-191, EIP-712
Solana	Base58 Ed25519	Solana Message
NEAR	Ed25519 (NEP-413)	signed_message
TON	TL-B with wallet v4/v5	Custom signature schema
Stellar	XDR-auth message	SEP-0010

This allows users to sign intents using their native wallets without needing additional infrastructure.

Swap Architecture

Swaps (e.g., token_diff) in HOT Protocol are designed to be flexible and modular. Execution can be handled in multiple ways:

1. Solvers External entities (like market makers or bots) who scan the mempool or listen to intent APIs, validate signature + price, and fulfill the swap. They may:

   • Hedge externally (on CEX/DEX).

   • Route liquidity internally.

2. On-chain AMM (Optional) A fallback mechanism for direct swaps without a solver. This provides a trustless execution path for certain pools.

3. Intents-based Orderbooks (Experimental) Users can post signed limit orders (intents) to be matched by anyone — a novel decentralized orderbook using HOT Omni Tokens.

Chain Abstraction dApps

Thanks to HOT Omni Balance intent model, developers can build Chain Abstraction apps that:

• Interact with assets from multiple chains via a single interface.

• Use one signer identity to control assets from Solana, Ethereum, TON, etc.

• Stay gasless: all fees can be subsidized or paid via token abstraction.

SDK

GitHub - hot-dao/omni-sdk: A fast and cheap bridge protocol over HOT Protocol that uses the NEAR Intents engine for exchange. Available for EVM (10+ chains), NEAR, Solana, TON, Stellar, CosmosGitHub