A step-by-step guide on how to use Secret Bridge (ETH & BNB) to mint Secret NFTs

One of the most common questions when it comes to minting Secret NFTs is "How can I get $SCRT?", or "How can I buy $SCRT?". In this guide on how to use Secret Bridge for ETH (ERC20 tokens) and BSC (BEP20 tokens), I have described how you can use the bridge to make Secret versions of your favourite tokens such as BNB, ETH, LINK, AAVE, and even USDT. Full list of token support in Secret Bridge further down on this page.

As always with this privacy blockchain, keep it on the down low, it is a Secret (Network) after all.

Table of content:

  • What is $SCRT token (and $sSCRT)?
  • What is Secret Bridge?
  • List of tokens Supported in Secret Bridge
  • How to use Secret Bridge (First part ETH/ERC-20, Second part Binance/BEP-20)
  • Further resources on how to mint Secret NFTs
  • YouTube Video embed on how to use Secret Bridge

What is $SCRT token (and $sSCRT)?

$SCRT is the native token of the Secret Network, a privacy blockchain. Secret Network is a so called PoS (Proof-of-Stake) blockchain based on Cosmos SDK/Tendermint. $SCRT is used to secure the network - governance and staking.

It is important to note that the native token of this privacy-first blockchain is not a privacy coin at all. Any transaction made using $SCRT is public, just like most other blockchains, like Solana, Ethereum or Cardano. The privacy-by-default aspects of Secret Network comes from the Secret tokens issued from inside Secret Network. Such as $sSCRT which is used for minting Secret NFTs.

Besides Secret NFTs, which is a rather new addition in the Secret Network ecosystem, $SCRT and the secret tokens have multiple use-cases within Decentralized Finance, Data Sharing and the Healthcare Industry. But, let's focus on the Secret Bridge and minting Secret NFTs.

You can buy $SCRT from centralized exchanges such as the Binance exchange.

What is Secret Bridge?

In short, the Secret Bridge allow you to lock other tokens such as ETH, BNB, or USDT in a smart contract in specific blockchain. ETH on Ethereum, and then mint secretETH (sETH). The new sETH is pegged 1:1 with ETH but has privacy-by-default, and can be used to swap other secret tokens using the SNIP-20 standard. One example of such a secret token is the $sSCRT used for minting Secret NFTs.

The Secret Bridge is located at https://bridge.scrt.network/

It is both quick, and inexpensive to bridge tokens to their secret versions. Continue reading this guide on how to use Secret Bridge so that you can get started bridging, and minting Secret NFTs.

List of tokens supported in Secret Bridge

At the time of writing this guide on how to use Secret Bridge, the following tokens are supported (reserve the right to have missed a token or two 😅):

  • AAVE
  • ADA
  • ALPHA
  • BAKE
  • BAND
  • BAC
  • BCH
  • BNB
  • BUSD
  • BAT
  • BUNNY
  • CAKE
  • COMP
  • DAI
  • DPI
  • DOT
  • ETH
  • FINE
  • KNC
  • LTC
  • LINK
  • LINA
  • MANA
  • MKR
  • OCEAN
  • TRX
  • RSR
  • RUNE
  • REN
  • SIENNA
  • SNX
  • SUSHI
  • TUSD
  • TORN
  • USDT
  • USDC
  • UNI
  • WBTC
  • XVS
  • XRP
  • YFL
  • YFI
  • ZRX

Currently, there is support for ERC20 and BEP20 tokens, more can be added, even new ecosystems can have a dedicated Secret Bridge. 🤯

Secret Bridge supported blockchains. Image from Secret Network website.

How to use Secret Bridge - ETH/ERC-20 and Binance/BEP-20

First part covers ETH/ERC-20, second part BSC/BEP-20. Scroll down for BSC/BEP-20 instructions.

You will need both Keplr Wallet and MetaMask Wallet to use Secret Ethereum Bridge, and Secret BSC Bridge.

How to use Secret Ethereum Bridge

You can find the Secret Bridge here: https://bridge.scrt.network/

When you enter the bridge, this is what you will see:

Secret Bridge landing page.

  • Connect your Keplr Wallet and MetaMask wallet.
  • Approve TX in respective wallets to give permissions.

Connect Keplr and MetaMask.

  • Activate Ethereum Network.

Activate Ethereum.

  • Activate ETH.

Choose ETH in the 'Token'-dropdown.

  • Enter the amount of ETH you want to bridge.
  • Enter the destination Secret Network address - click to 'Use my address' if bridging to the connected Keplr account.

Fill in the details for the bridge transaction.

Click "Bridge to Secret Network" in the bottom-right corner of your browser window.

Confirm the transaction, this will prompt you to sign a single transaction that will lock your ETH and mint secretETH, sETH.

Wait for the confirmation that the transfer was successful. This can take from a minute up to several minutes depending on Ethereum, and Secret Network congestion.

You will not be able to see your sETH without unlocking them inside Keplr Wallet.

  • To unlock the sETH, you need to create a viewing key for the sETH balance available in your wallet after the bridging.
  • First start by clicking 'Unlock Token'.
  • Then click on 'Create' in the 'Viewing Key'-field.
  • This will prompt a TX window, approve the transaction.
  • After that, your sETH balance is available in your Keplr Wallet.

Unlock your sETH in Keplr Wallet. Image from Secret Network website.

Once you have your $sETH available, you can go ahead and swap them for $sSCRT which is needed to be able to mint Secret NFTs.

How to use Secret BSC Bridge

You can find the Secret Bridge here: https://bridge.scrt.network/

When you enter the bridge, this is what you will see:

Secret Bridge landing page.

  • Connect your Keplr Wallet and MetaMask wallet.
  • Approve TX in respective wallets to give permissions.

Connect MetaMask and Keplr.

  • Activate Binance Smart Chain Network.

Activate Binance Smart Chain.

  • Activate BNB(BSC).

Choose BNB(BSC) from the 'Token'-dropdown.

  • Enter the amount of BNB you want to bridge.
  • Enter the destination Secret Network address - click to 'Use my address' if bridging to the connected Keplr account.

Click "Bridge to Secret Network" in the bottom-right corner of your browser window.

Confirm the transaction, this will prompt you to sign a single transaction that will lock your ETH and mint secretETH, sETH.

Wait for the confirmation that the transfer was successful. This can take from a minute up to several minutes depending on Ethereum, and Secret Network congestion.

Confirm the bridge transaction to Secret Network.

You will not be able to see your sBNB without unlocking them inside Keplr Wallet.

  • To unlock the sBNB, you need to create a viewing key for the sBNB balance available in your wallet after the bridging.
  • First start by clicking 'Unlock Token'.
  • Then click on 'Create' in the 'Viewing Key'-field.
  • This will prompt a TX window, approve the transaction.
  • After that, your sBNB balance is available in your Keplr Wallet.

Disregard the reference to secretETH here, the flow is the same for secretBNB. Image from Secret Network website.

Once you have your $sBNB available, you can go ahead and swap them for $sSCRT which is needed to be able to mint Secret NFTs.

Further resources on how to mint Secret NFTs

  • Where to buy $SCRT - Read here coming soon
  • How to mint Secret NFTs if you already have $SCRT available - Read here
  • How to convert $SCRT to $sSCRT used for minting - Read here
  • How to swap secret tokens to $sSCRT used for minting - Read here

YouTube video on how to use Secret Bridge for ETH

If you do not like to read, or you would like to see how to use Secret Bridge in practice, then this tutorial from WhisperNode will be helpful.

FAQ How to use Secret Bridge

How is the Secret Bridge operated?

The different Secret Bridges are operated by trusted, industry-leading staking operators such as Staked, Figment, and Citadel.One.

What is a viewing key?

When you lock your ETH or BNB, and exchange them for their secret versions: sETH, and sBNB. The new tokens become privacy tokens based on Secret Network's SNIP-20 protocol. So, as soon as you bridge your assets, they become private. Not even Keplr Wallet can view them without you giving persmission.

This is why you set a so-called viewing key, which gives Keplr Wallet access to view your secret tokens. This process is what is referred to as unlocking the new secret tokens.

Can I mint Secret NFTs using any secret token?

No, the secret version of $SCRT is used to mint Secret NFTs: $sSCRT. Unless the mint explicitly says that you can mint using another type of secret token, $sSCRT is what you need to use.

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