From a5b601dad514fe7b09d2d569534579b11e1f0eda Mon Sep 17 00:00:00 2001 From: "myarbrough@oreilly.com" Date: Tue, 18 Nov 2014 12:29:38 -0800 Subject: [PATCH] Made changes to ch09.asciidoc --- ch09.asciidoc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/ch09.asciidoc b/ch09.asciidoc index 3220f593..d1733984 100644 --- a/ch09.asciidoc +++ b/ch09.asciidoc @@ -157,11 +157,11 @@ Proof of stake is a system by which existing owners of a currency can "stake" cu * Block generation: 10 minutes * Total currency: No limit * Consensus algorithm: (Hybrid) proof-of-stake with initial proof-of-work -* Market capitalization: $14 million USD in mid-2014 +* Market capitalization: $14 million in mid-2014 ===== Myriad -((("Myriad")))Myriad was introduced in February 2014 and is notable because it uses five different Proof-Of-Work algorithms (SHA256d, Scrypt, Qubit, Skein, or Myriad-Groestl) simultaneously, with difficulty varying for each algorithm depending on miner participation. The intent is to make Myriad immune to ASIC specialization and centralization as well as much more resistant to consensus attacks, because multiple mining algorithms would have to be attacked simultaneously. +((("Myriad")))Myriad was introduced in February 2014 and is notable because it uses five different proof-of-work algorithms (SHA256d, Scrypt, Qubit, Skein, or Myriad-Groestl) simultaneously, with difficulty varying for each algorithm depending on miner participation. The intent is to make Myriad immune to ASIC specialization and centralization as well as much more resistant to consensus attacks, because multiple mining algorithms would have to be attacked simultaneously. * Block generation: 30 second average (2.5 minutes target per mining algorithm) * Total currency: 2 billion by 2024