Dublr DEX


The Dublr Decentralized Exchange (DEX)

Dublr is an ultra-secure fungible token smart contract that implements the ERC20 token standard, and several extensions: ERC1363, ERC4524, and EIP2612, as well as a number of security extensions to provide increased security in the area of ERC20 allowances.

Additionally, Dublr implements its own built-in decentralized exchange (DEX) for decentralized finance (DeFi), so that DUBLR tokens can be bought and sold using the Dublr smart contract itself. Dublr has the unique property that it is both a token and a DEX.

Read the Dublr whitepaper here.

To buy DUBLR tokens:

  1. Dublr is deployed on the Polygon mainnet, therefore you first need to buy Polygon MATIC tokens using a standard cryptocurrency exchange.
  2. Set up your own a cryptocurrency wallet (MetaMask or similar), and transfer your MATIC balance from your exchange to your wallet. You need to transfer MATIC tokens on the Polygon network, not wrapped ERC20 MATIC tokens on the Ethereum network.
  3. Click the blue "Connect to Wallet" button above, to connect this dapp to your wallet. You will be asked to switch to the Polygon network, and add the DUBLR token to your wallet.
  4. Switch to the "Buy" tab above, and decide how much MATIC you want to spend on buying DUBLR tokens. You can later list DUBLR tokens for sale in the "Sell" tab.

Minting: Supply of DUBLR tokens is generated on-demand by minting, rather than by ICO or airdrop. Minting occurs when a buyer tries to buy tokens and there are no tokens listed for sale on the DEX below the mint price. (Minting may be disabled by any buyer.) The mint price grows exponentially, doubling every 90 days for 30 doubling periods (~7.5 years): the minting of DUBLR tokens becomes twice as expensive every 90 days, or 0.77% more expensive per day, on a compound interest curve. After 30 doubling periods, minting will be disabled, fixing total supply.

Economics: Eventually as the mint price becomes exorbitant, but before minting is officially disabled after 30 doubling periods, it is expected that the cost of minting will become uneconomical, and the supply of tokens for sale below the mint price will meet or outstrip demand, thereby causing the total supply of tokens to behave as if it is effectively fixed and finite, and causing the DUBLR token to trade with the floating price governed by fixed supply vs. demand, as any other ERC20 token. However, this outcome is predicted only based on economic theory, and does not constitute financial advice or a prospectus, nor is there any guarantee of this outcome. See Legal Agreement and Disclaimers re. forward-looking statements.

Security: Extremely careful attention was paid to security in implementing Dublr, and all known smart contract vulnerabilities and attack vectors have been strongly mitigated or completely eliminated in OmniToken, the underlying token library that implements support for the supported token APIs, and in the Dublr DEX layer. Both OmniToken and Dublr have successfully passed two different third-party security audits. Full source code is available under an MIT license, and the code of the deployed contract can be verified on the blockchain explorer.

Learn more at the main Dublr GitHub page.

Disclaimers for US SEC compliance:

The name "Dublr" describes only the growth of the mint price, not the profitability of DUBLR tokens, or the growth of any fair market value of DUBLR tokens. The growth of the mint price sets a hard upper bound on how fast the price of DUBLR can grow relative to , enforced by increasing total supply of tokens to meet demand whenever the demand outstrips the supply of tokens for sale below the mint price. There is no lower bound on price, and minting is an inherently deflationary activity, so there are no guarantees or promises, express or implied, about the profitability of purchasing DUBLR tokens. The purchasing, sale, and use of DUBLR tokens is entirely at the purchaser's own risk. DUBLR tokens may not be able to be sold without incurring loss, or may not be able to be sold at all if there is insufficient demand. DUBLR Tokens may not be used for any illegal purpose, including money laundering Collected fees will not be used to fund ongoing development, marketing, or any other action beneficial to DUBLR token holders, and cannot be used to fund ongoing maintenance or improvement of the Dublr smart contract code, since no changes can be made to the deployed Dublr contract code after deployment. Therefore, any MATIC spent to mint or sell DUBLR tokens does not constitute investment in a common enterprise. By buying, selling, or using DUBLR tokens, you signify that you agree to the full Dublr Legal Agreement and Disclaimers.

EU "Cookie Law" compliance:

By continuing to use this dapp, you consent to the storage of a small amount of data in your browser. This dapp stores UI state via IndexedDB in order to improve user experience by persisting state across sessions. The stored information includes UI element state, such as the currently selected tab and checkbox values, which wallet is connected, and whether the DUBLR token has been added to your wallet (so that you are not prompted more than once to add the token). None of this information is transmitted. Additionally, your connected wallet may store state. If you are using a shared or public machine, you should only access this dapp in an incognito tab, so that all state (including the connection to your wallet) is erased when you close the tab.

Orderbook

Tokens currently listed for sale on the Dublr decentralized exchange (the Dublr DEX) are listed below, in increasing order of list price. Only tokens listed at or below the mint price may be bought (the mint price increases over time). The Dublr DEX implements only the sell side of the exchange.

Depth chart
Sell orders

Buy DUBLR tokens using :

DUBLR tokens may be bought or minted in exchange for . Tokens are bought from sell orders listed in the orderbook of the built-in decentralized exchange (DEX), in increasing order of price, until the current mint price is reached, after which new tokens are minted at the current mint price using any remaining balance.

There are no market taker fees for buying tokens listed on the built-in DEX. All that is spent to mint new tokens is collected as a nonrefundable minting fee.

Parameters


List DUBLR tokens for sale in exchange for :

DUBLR tokens may be listed for sale in exchange for spent by buyers. While DUBLR tokens are listed for sale, the listed amount is deducted from the spendable DUBLR balance of the seller, to prevent double-spending. If the sell order is canceled before all listed DUBLR tokens are bought, unbought DUBLR tokens are returned to the seller's wallet balance. Only one sell order may be listed at a given time for a given wallet.

If DUBLR tokens that are listed for sale and are bought by a buyer, the value paid by the buyer is transferred to the seller, minus a fee of 0.15% (this is half the 0.3% fee of Uniswap, and less than the total market maker+taker fee for Binance of 0.2%).

Price
[Current mint price: (unknown)]


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