
1. Introduction
The ATC-20 (AtlantisChain since 2020s) Token Standard is an industrial-grade fungible token standard designed for the issuance, management, and interoperability of digital assets operating on AtlantisChain.
ATC-20 defines a unified API and strict structural requirements for all tokens operating under a standardized AI Contract framework. Once deployed on AtlantisChain, an ATC-20 token becomes a native, permanently recorded asset and is immediately visible on the official blockchain explorer: https://ATCscan.io
This standard ensures consistency, transparency, determinism, and long-term stability across the entire AtlantisChain ecosystem.
2. Mandatory Token Parameters
Every ATC-20 token deployed on AtlantisChain must permanently include and comply with all of the following parameters:
Name
The token name must be unique across AtlantisChain.
Example: Atlantis USD
Symbol
The token symbol must be unique.
Example: USDA
Description
A human-readable description of the token must be provided.
Maximum length: 500 bytes, including spaces.
Logo
A unique round logo must be provided.
Required resolution: 512 × 512 pixels.
Total Supply
The total supply must be fixed at the time of deployment.
Permitted range: 1,000,000 - 1,000,000,000,000,000
No future minting is permitted.
Decimals
The decimal precision must be set between 4 and 9.
Official website and/or social media URLs must be provided to establish project identity and public reference.
AI Contract Identifier
Each ATC-20 token must operate under an AI Contract.
AI Contract identifiers must start with the prefix: AC
Wallet Address Format
All ATC-20 token-related wallet addresses must start with the prefix: ATC
3. Fungible Token Definition
ATC-20 defines a standard for fungible tokens operating on AtlantisChain.
Fungibility means that every unit of a token is identical in type and value to every other unit issued under the same AI Contract.
An ATC-20 token behaves in the same fundamental manner as ATC (Atlantis Coin®). One token unit is and will always be equal to any other token unit governed by the same AI Contract ID, regardless of ownership history or transaction sequence.
4. Interoperability and Ecosystem Integration
The ATC-20 standard enables developers to create token-based applications that are fully interoperable with all products and services throughout the AtlantisChain ecosystem.
This includes compatibility with wallets, block explorers, trading platforms, payment systems, settlement layers, and other onchain or offchain services operating on AtlantisChain.
ATC-20 is also used as a standardized mechanism to extend and support additional functionality for ATC within the AtlantisChain protocol framework.
5. Core Functional Capabilities
An ATC-20 AI Contract provides the following core functional capabilities, available for both onchain execution and offchain querying:
Transfer ATC-20 tokens from one account to another
Query the current ATC-20 token balance of any account
Retrieve the total token supply available on the network
Approve whether a specified amount of tokens from an account may be spent by a third-party account
In addition, the ATC-20 standard enforces the following protocol-level constraints:
Token names and symbols must be globally unique across AtlantisChain.
Transaction-level taxes or hidden transfer deductions are not permitted.
Any form of future minting after deployment is strictly prohibited.
6. Technical Foundation
The ATC-20 Token Standard is built directly on the native technical architecture of AtlantisChain and inherits all of its core protocol characteristics.
ATC-20 AI Contracts are implemented using the Rust programming language, ensuring strong memory safety, high execution efficiency, deterministic behavior, and long-term protocol reliability.
AtlantisChain operates under the Proof of Light (PoL) consensus algorithm. PoL enables ultra-fast block finality, continuous network operation, deterministic transaction ordering, and permanent state confirmation. All ATC-20 token operations are validated and finalized under Proof of Light consensus within 0.093 seconds without probabilistic rollbacks.
ATC-20 tokens execute within the AtlantisChain AI Contract environment, benefiting from fixed ultra-low gas costs, deterministic execution, and permanent onchain state preservation. Token parameters, balances, approvals, and transaction records are consistently maintained across all network nodes under AtlantisChain protocol rules.
7. Contract Qualification
If an AI Contract implements the required ATC-20 methods and events defined by this standard, it is formally recognized as an ATC-20 Token Contract.
Once deployed, the AI Contract becomes the permanent authority responsible for tracking token balances, transfers, approvals, and total supply on AtlantisChain.
8. Permanence and Transparency
All ATC-20 tokens, once deployed, are permanently recorded on AtlantisChain.
ERC-20 and BEP-20 token standards do not natively store or render token logos or descriptive metadata on chain. Such information is manually added and maintained offchain through third-party registries, centralized token lists, or wallet-specific databases at a later stage. As a result, very few such tokens have this information available on their block explorers.
By contrast, ATC-20 tokens natively support onchain recognition of token identity, including name, symbol, description, and logo, enabling consistent and automatic display across AtlantisChain-native wallets and explorers.
ATC-20 token balances are automatically recognized and displayed by the official AtlantisChain cold wallet at https://AtlantisWallet.org when a non-zero balance exists.
ATC-20 token descriptions, metadata, balances, total supply, and transaction history are immutable and publicly verifiable through the official block explorer at https://ATCscan.io
This ensures transparency, auditability, and continuity for users, developers, enterprises, and institutions operating on AtlantisChain.