I found the offline github generator to use it on a cold computer and generate my bitcoinZ address , but apparently theres two kind of addresses public t-address and private z-address.

And its a little confusing or im missing something :

On the paper + mining guide it says :
* BitcoinZ-mini and BitcoinZ Cold Wallet cannot be used for mining as t-addresses are needed to mine - the private z-addresses they generate cannot receive mining rewards *

But on github https://github.com/bitcoinz-pod/zgenerate/releases   it says :
 
" Generates public addresses (taddr - starts with t*).
Just run in command line (cmd):

zgenerate

So now you have BTCZ address and you can start mining! "

So BitcoinZ cold wallet can generate only zaddres or taddres or both    

Thank you both  . Ok so for the moment i think i will avoid paperwallets if possible just to avoid that private keys online exposure. Yeah @jserverson thats what im trying to find ( "watching-only wallet (online) + wallet on an air-gapped computer for signing. ) but for altcoins. Ive already " like " 10 alts or so, but to start i want to focus on understanding Zencash & btcZ.

I found myzenwallet.io for zencash which i can run locally with the github code on the air gapped computer to generate a wallet address. The same goes for myetherwallet and the code available on github.

Although for btcZ... after reading the paper and the announcement im still scratching my head  :

 > I found the offline github generator , but apparently theres two kind of addresses public t-address and private z-address. And its a little confusing or im missing something :

On the paper + mining guide it says :
* BitcoinZ-mini and BitcoinZ Cold Wallet (this is the github one) cannot be used for mining as t-addresses are needed to mine - the private z-addresses they generate cannot receive mining rewards *

But on github https://github.com/bitcoinz-pod/zgenerate/releases   it says :
 
" Generates public addresses (taddr - starts with t*).
Just run in command line (cmd):

zgenerate

So now you have BTCZ address and you can start mining!" 

Anyway ill be busy at first setting up the air gapped computer, i hope in a couple of days i solved the btcZ doubts and be able to start mining !!

Hi ! im happy to enter this world but after reading alot from different sources i have some important doubts :

My plan is to have cold wallets for the moment , so :  

1 . Do all altcoins have an offline wallet generator ? For e.g does it exist for zencash, btcZ.. ?
2 . Do all altcoins support signing transactions offline with the private keys, and then make them live using an online computer ?
3 . With cold wallets, i would have to make a backup of the wallet each time i make an outgoing transaction ? or every 10 or
************

About paper wallets  >  If you have a paper wallet and one day you need to use it, that day youll have to expose the private key online    when making a transaction ?

Thanks