Altcoins supporting signing/verifying messages

[choog]

HI,

Which altcoins support signing and verifying messages? And what software / wallet for these altcoins provides this service?

So far, my research has thrown these altcoins up as providing ability to sign anbd verify messages (mainly to prove ownership of address):

1. Dash
2. Monero
3. ZCash
4. DogeCoin
5. BitShares
6. Lisk
7. Peercoin

Are there any I am missing out? (Litecoin?)

Also- as a noob to ethereum,  I understand that ethereum provides this capability too. But pther tokens built on top of ethereum - how many and how do they provide this capability? I am talking about tokens like: Golem, Gnosis, Stellar, Augur, Waves, MaidSafeCoin, DigixDao, DigiByte, Ardor, Iconomi, Melon, Reddcoin etc

Thanks.

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[BitcoinHodler]

when altcoins are similar to each other at code level (for example litecoin being the copy of bitcoin) specially in places that matter like how a private key is defined, then they all have the "sign a message feature" even if the wallet doesn't have that.

because signing a message is simply a cryptography signature that you make by having the private key as your key to sign and the message as the string to sign and then produce a base64 (if i am not mistaken) string.