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NickSzabo4's profile
Nick Szabo 🔑
Nick Szabo 🔑
Nick Szabo  🔑
@NickSzabo4

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Nick Szabo  🔑

@NickSzabo4

Blockchain, cryptocurrency, and smart contracts pioneer. (RT/Fav/Follow does not imply endorsement). Blog: http://unenumerated.blogspot.com 

Joined June 2014

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    1. Luke Dashjr‏ @LukeDashjr Feb 20
      • Report Tweet
      Replying to @NickSzabo4 @TokenHash @pyskell

      Bandwidth growth may not be *precisely* predictable, but there are reasonable expectations. Demand for transactions should not be a factor in such limits at all.

      3 replies 0 retweets 9 likes
    2. Nick Szabo  🔑‏ @NickSzabo4 Feb 20
      • Report Tweet
      Replying to @LukeDashjr @TokenHash @pyskell

      Luke, what do you think of Dash's system for remunerating full nodes? This debate is consequent of a glaring (but perhaps unsolvable) imperfection where miners and exchanges earn (at 2 different levels) transaction fees but full nodes don't. Dash claims to have solved this.

      10 replies 3 retweets 25 likes
    3. Luke Dashjr‏ @LukeDashjr Feb 20
      • Report Tweet
      Replying to @NickSzabo4 @TokenHash @pyskell

      I haven't looked at Dash specifically, but it seems difficult. After all, it's not merely running full nodes that needs to happen, but using your own to verify payments to you. It's hard to prove this.

      4 replies 0 retweets 17 likes
    4. Nick Szabo  🔑‏ @NickSzabo4 Feb 20
      • Report Tweet
      Replying to @LukeDashjr @TokenHash @pyskell

      Having your own full node to verify payments received is incentive compatible *if* either you have frequent large payments incoming or you've already funded your node by other means (like Dash?), making the ability to .verify small or uncommon incoming payments icing on the cake.

      1 reply 0 retweets 7 likes
    5. Nick Szabo  🔑‏ @NickSzabo4 Feb 20
      • Report Tweet
      Replying to @NickSzabo4 @LukeDashjr and

      That said, I don't know how (or if) Dash solves the problem of preventing Sybil attackers from claiming to run full nodes when they really aren't. #Bitcoin #Dash

      3 replies 0 retweets 3 likes
    6. This Tweet is unavailable
    7. Nick Szabo  🔑‏ @NickSzabo4 Feb 21
      • Report Tweet

      I haven't seen anybody look into this particular Dash feature in any sufficient detail though.

      1 reply 0 retweets 4 likes
    8. This Tweet is unavailable
    9. Nick Szabo  🔑‏ @NickSzabo4 Feb 21
      • Report Tweet

      No that doesn't do it.

      3 replies 0 retweets 3 likes
    10. Joshua is Typing  💬‏ @seiglerj Feb 21
      • Report Tweet
      Replying to @NickSzabo4 @LukeDashjr and

      Masternodes have a collateral requirement, since a MN sybil attack would compromise the extra services MNs provide. What kind of harm could a person cloning their non-MN full node do? Miners don't depend on non-MN full nodes, and network votes are done by masternodes.

      1 reply 0 retweets 2 likes
      Nick Szabo  🔑‏ @NickSzabo4 Feb 21
      • Report Tweet
      Replying to @seiglerj @LukeDashjr and

      Seems a bit like a "house of proof-of-stake" operating alongside a "senate-of-miners". But how is it secured? Are @LukeDashjr's and @fluffypony's critiques (for example, that the important functions of a node are not actually verified) accurate, and if not how specifically not?

      9:42 AM - 21 Feb 2019
      • 2 Retweets
      • 4 Likes
      • The Talking Dash a.s. (--oppose-dao-fork‏) Donald McIntyre ☣️🗑️ Riding Unicorns to the Moon
      1 reply 2 retweets 4 likes
        1. New conversation
        2. Joshua is Typing  💬‏ @seiglerj Feb 21
          • Report Tweet
          Replying to @NickSzabo4 @LukeDashjr and

          SPV risk for standard txs in Dash is comparable to BTC/BCH: personal full node is still best. Full and SPV clients can prevent double spends with InstantSend, which relies on a quorum of masternodes, whose participation is now monitored w/ proof-of-service https://docs.dash.org/en/stable/masternodes/understanding.html#proof-of-service …

          2 replies 0 retweets 1 like
        3. Joshua is Typing  💬‏ @seiglerj Feb 21
          • Report Tweet
          Replying to @seiglerj @NickSzabo4 and

          In the upcoming version, proof of service (PoSe) includes a bunch of neat DKG stuff. Currently it's based on things like whether a masternode handles instantsend locks properly -- here is an instance where a good masternode votes to ban a bad one:https://github.com/dashpay/dash/blob/master/src/instantx.cpp#L472 …

          2 replies 0 retweets 2 likes
        4. Riccardo Spagni‏Verified account @fluffypony Feb 21
          • Report Tweet
          Replying to @seiglerj @NickSzabo4 and

          Oh cool, so instead of a cabal of MasterNodes taking one offline via DoS to increase their proportional payout, all they have to do is just vote them offline for bad behaviour. Much, much easier!

          1 reply 0 retweets 1 like
        5. Joshua is Typing  💬‏ @seiglerj Feb 21
          • Report Tweet
          Replying to @fluffypony

          I appreciate your attempts to help with these kinds of edge cases; maybe you can give us more insights? Here is some of the code that deals most with proof-of-service bans in the current version: https://github.com/dashpay/dash/blob/v0.13.x/src/masternodeman.cpp …

          1 reply 0 retweets 3 likes
        6. Riccardo Spagni‏Verified account @fluffypony Feb 21
          • Report Tweet
          Replying to @seiglerj

          Pointing out an obvious flaw doesn't mean I'm available for free work :)

          0 replies 0 retweets 0 likes
        7. End of conversation

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