Yes, a Bitcoin transaction is not valid in the Bitcoin 2 blockchain and vice versa due to the differences between the transaction formats and the blockchains.

Easiest way would be to send your BTC2 to the staking web wallet. Staking would begin automatically and continue without interruptions.

But if you want the full rewards, just download and install the Bitcoin 2 Core Wallet, let if fully synchronize and then import or send your Bitcoin 2s there. Wait for 101+ minutes, and then restart the wallet. Then all you have to do is keep the application running.

Everybody using the Bitcoin 2 Core wallet or leaving it on helps run the blockchain all the while earning Bitcoin 2s.

A staker who creates a valid block gets rewarded 0.6 Bitcoin 2s until the maximum supply has been reached. The staker also gets the transaction fees for that block.

The more Bitcoin 2s you have in your Bitcoin 2 wallet, the higher the chances and frequency of getting block rewards. Only a small portion of the coins in circulation are being staked at any given time so you do not need to own a lot of Bitcoin 2s to be able to get block rewards.

If for example the staking ROI is 55%, and you have 400 BTC2 on your staking wallet, you would averagely get around 1 reward per day.
If you staked with 4000 BTC2, then ~10 rewards per day averagely, and so on. The rewards for masternode holders are more frequent.

Staking the BTC2 that you have in your Bitcoin 2 Core wallet starts when you start a fully synchronized unlocked wallet that has mature coins (101+ confirmations).

So after you have fully synchronized your wallet and see your coins there, you have to restart the wallet to start staking. A green icon will show at the bottom right if you are staking. Click Tools - debug console and type: getstakingstatus to see what is wrong if it is not green.

No more than Bitcoin. The number of Bitcoin 2s in circulation will only increase by about 2% per year until the maximum number is reached.

The number of Bitcoin 2s in circulation will never increase beyond 21 million, making Bitcoin 2 a much better store of value than any fiat currency.

At the current rate, in 10 years there will be almost double the amount of US dollars in circulation! This is why investing in gold or Bitcoin is so popular.

zBTC2 is the anonymous version of Bitcoin 2 that uses the Zerocoin protocol. You can convert your BTC2 to zBTC2 or vice versa in the wallet.

Note that right now you can only stake BTC2, not zBTC2 (the anonymous coins). Support for staking zBTC2 is in development.

Read more about zBTC2 and the Bitcoin 2 Zerocoin Protocol

Bitcoin2 Core developers alongside with any new contributors will work on: Bitcoin 2 Decentralized Exchange Network and continue to implement any further important advances in cryptocurrency technology such as the Dandelion Protocol.
Our long-term goal is to partner with a mobile point of sale payment service or creating one with rewards and such in the mobile app to entice users to use it rather than visa/mastercard and create more real world use for Bitcoin 2.
Anyone interested in developing Bitcoin 2 further can contribute to the Bitcoin 2 github.

It works just like the "InstantSend" feature in Dash. When a user chooses to send a transaction as a SwiftTX, the transaction will be sent to Masternodes to process and it gets verified and guaranteed by them almost instantly.

Thus there is no need to wait for the transaction to appear in a confirmed block. This type of payment is made for Point of Sale situations in the real world.

They process and guarantee the SwiftTX transactions along with adding to the speed, connectivity and redundancy of the network.

The Masternode at the head of the queue-like system gets rewarded 0.2 Bitcoin 2s on every newly created block (25% of the total block reward), regardless of who created the block. Most of them also get included as seed nodes after they have been online long enough. Seed nodes are the first nodes that new wallets connect to in order to find peers.

You will need to have 1000 Bitcoin 2s as collateral and run a VPS or a dedicated server. You can Read more about running a Masternode for Bitcoin 2 here.

You can check that figure at the top of the Bitcoin 2 Block explorer.

Just download the newest .zip/tar.gz file and copy the executable files in the bin folder to replace the ones you had installed already.

In some cases downloading a snapshot can be faster. So you can just download this Bitcoin 2 blockchain snapshot and follow the instructions in the ReadMe.txt.

Windows
Go to Start > Run > %APPDATA%\Bitcoin2
(or just enter the above path in explorer)

or C:\Users\%username%\AppData\Roaming\Bitcoin2


OSX (MacOS)
Open a finder window, then select the "Go" dropdown menu. In this menu please press the "Go to Folder..." option. In the window that opens type: ~/Library/Application Support/Bitcoin2 and press enter. If the folder cannot be found please repeat the steps and enter: ~/.bitcoin2

~/Library/Application\ Support/Bitcoin2
(/Users/YourUserName/Library/Application\ Support/Bitcoin2)
Or: (/Users/YourUserName/.bitcoin2)

Linux
~/.bitcoin2 (hidden folder)

You will need to copy the wallet.dat file in the data directory when the wallet is not running. (Bitcoin 2 Core should be shut down before copying). Backups of this file are created automatically to the backups folder inside the data directory.
See the above question if you need help in finding the data directory.

In order to restore a backup or move your wallet to a new computer, you just have to install Bitcoin 2 there like normally, and then copy your backup of your wallet.dat in the newly installed data directory when the wallet is not running. (Bitcoin 2 Core should be shut down before copying).

Try restarting the wallet if you did not already. If you have less than 4 connections/peers after the wallet has been running for several minutes, try disabling any firewalls and deleting the peers.dat and banlist.dat files from Bitcoin 2 data folder. Then start the wallet again. If that does not help and the wallet shows that you have more than a few connections/peers, then click to go to Tools - Information - and click the "delete local blockchain folders" button to let it resync.

As of June 2019, we are in the process of making claiming BTC2 from the fork more difficult. They have been easy to claim for 15 months already, which was plenty of time and that was a good start to our blockchain and distribution.
But they will not be so easy to claim from here on out. Most new claims ended up getting dumped as free money, which affects BTC2 negatively.

It takes time to go through it all but all unclaimed Bitcoin addresses will not even show a balance soon when imported normally. By unclaimed we mean not yet moved since the fork, either by staking successfully with it or transferring.
They are just being made hard to see or spend, but not removed. This way the option is there to make claiming easy again in the future.

Short answer:
Use a fully updated Raspbian and the ARM 32 bit version of the wallet.

Long answer:
A member of our community created an in-depth step by step guide.

Technical details about Bitcoin 2 and its Zerocoin protocol can be read here.

BTC2. Some services may use BCT in the future.