From 3b6e41b0e59da8c5adbfb92d0c4b1734d8fc617d Mon Sep 17 00:00:00 2001 From: Marco Stronati Date: Mon, 16 Jul 2018 16:03:27 +0200 Subject: [PATCH] Doc: PoS add fitness --- docs/whitedoc/proof_of_stake.rst | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/docs/whitedoc/proof_of_stake.rst b/docs/whitedoc/proof_of_stake.rst index d0b3ffd0f..1153553b7 100644 --- a/docs/whitedoc/proof_of_stake.rst +++ b/docs/whitedoc/proof_of_stake.rst @@ -257,6 +257,17 @@ same block, in this case ``k`` deposits are required and ``k`` rewards gained. However a single operation needs to be sent on the network to endorse ``k`` times the same block. +Fitness +~~~~~~~ + +To each block we associate a measure of `fitness` which determines the +quality of the chain leading to that block. +This measure in Bitcoin is simply the length of the chain, in Tezos we +add also the number of endorsements to each block. +Given a block at level ``n`` with fitness ``f``, when we receive a new +head that contains ``e`` endorsements for block ``n``, the fitness of +the new head is ``f+1+e``. + Inflation ~~~~~~~~~