Post
Topic
Board Announcements (Altcoins)
Re: [ANN][CLAM] CLAMs, Proof-Of-Chain, Proof-Of-Working-Stake, a.k.a. "Clamcoin"
by
smooth
on 13/10/2015, 12:53:47 UTC
It's a good idea. Are there any SPV clients that support any altcoins at all?

I've no idea how much work would be involved - I don't have the first idea about how SPV works.

There is an Electrum fork for Litecoin: https://electrum-ltc.org

Someone here claims their fork support a bunch of other coins: https://cryptocointalk.com/topic/23210-ann-electrum-lightweight-client-for-doge-drk-dvc-ftc-ixc-ppc/

I don't think it is that difficult but verification of a PoS coin might require more code changes.

Does Electrum even use SPV? I've read contradictory reports about that.

Not exactly. It does include verifying transaction inclusion via merkle proofs, which is the essence of SPV but it doesn't work the exact same way as described in the white paper.

Multibit is somewhat closer, and is also open source and could be forked, but most alts seem to stick with Electrum.

In point of fact there are NO pure SPV wallets because SPV as described in the white paper also includes the network having a warning system against attacks, which doesn't exist, and the original description doesn't include any practical or privacy-preserving method for querying your transactions either.