Pag sa coins.ph, wala talaga tayong way para makapag sign message kasi hindi natin alam ang private keys ng bitcoin wallet natin.
Just a reminder: it also means that you don't really own the bitcoins. If coins.ph would get hacked, go bankrupt or simply runs with the money - you would lose it all. That's why it's better to use a wallet where only you have access to the private keys.Coins.ph is additonally bad because they only give 1 address per account (or 2 if including peso wallet.) Much more privacy if they wouldn't re-use addresses.
That being said, I still use coins.ph as easy "prepaid load top-up wallet"
(for relatively small amounts.)Agreed. Storage ko ng bitcoin ay yung sarili kong gawang wallet gamit yung vanitygen tapos ginagamit ko lang yung coins.ph pag mag wiwithdraw ako or any transaction feature ( buy steamcards, pa load ). Mahirap nadin kasi magtiwala, kahit sabihin mo na matatag talaga ang coins.ph. Maganda talaga kung ikaw ang may hawak ng priv keys mo, para ikaw lang talaga ang pwede maka access.( basta wag mo papaalam sa iba haha )
). Kung ang gamit mo na wallet ay galing sa coins.ph, hindi ka makakapag sign message. Basta yung wallet na nag sisimula sa 3 hindi ka mkakapag sign message. Good luck 
