diff --git a/README.md b/README.md index c693572..bf60091 100644 --- a/README.md +++ b/README.md @@ -1,15 +1,15 @@ -# Mastering Komodo Delayed Proof-of-Work +# Mastering Delayed Proof-of-Work ## by Duke Leto This is a short technical document aimed at developers who are interested to learn more about DPoW and/or want to add it to their a cryptocoin to protect -against consensus (51%) attacks. These attacks are becoming very common +against consensus (51%) attacks and double spend attacks. These attacks are becoming very common against coins from large to small. This book assumes basic knowledge of the Bitcoin protocol, Bitcoin source code, -C++ and basic compiler knowledge. No prior knowledge of Komodo is assumed, this -work contains a basic introduction of Komodo features. +C++ and basic compiler knowledge. No prior knowledge of Hush is assumed, this +work contains a basic introduction of Hush features. # High Level Overview of KMD DPoW @@ -24,7 +24,7 @@ blockchain. Anybody can use it and implement the service. ## Global Notary Node Network -In more detail, there exist a network of 64 notary nodes spread around the +For example, say there exist a network of 64 notary nodes spread around the globe. They are not in any one physical location, which makes the system resilient against a datacenter outage or natural disaster in one geographical location. The algorithm NNs use require 13 notary nodes to come together and @@ -72,29 +72,6 @@ nodes and some exchanges attempt to charge for full node updates (which the author finds scammy), so timing the integration of DPoW services can be very strategic. -# Double Spend Attack Prevention - -It is the authors recommendation that exchanges pause any transactions for -which data has not yet been notarized to the appropriate chain. For a game -allowing in-game purchases with digital currencies, it might allow transactions -up to $10 if the data has been notarized to Komodo, or no limit on transactions -that have been notarized to Bitcoin. This allows small-value transactions to -proceed very quickly (Komodo has a 1 minute blocktime) while ensuring -protection against double-spend attacks for large value transactions. This -protection comes at the cost of waiting longer, as Bitcoin has 10 minute -blocktime. - -It is important to understand that one half of the process is notarization -data, which must go from COIN -> KMD -> BTC, and the other half of Double Spend -Protection is actually looking at this notarization data and deciding if it's -safe to proceed with some action. Komodo is working on an API to see if a txid -of a certain dpow-enabled coin has been notarized to KMD and BTC, so that -exchanges and other parties wanting to protect against double spends can make -informed decisions, in much shorter time periods than waiting until 120 confirmations. - -The API for when notarizations have made it to the KMD chain is at -https://komodostats.com/api/notary/summary.json . - # DPOWconfs protect against double spends with no code changes A recent innovation called "DPoW confs" allows