Kaspa Ghostdag 101

Описание: #GHOSTDAG 101 workshop: a deep dive into the consensus layer that drives #kaspa . Presented by Shai (Deshe) Wyborski and held in the Kaspa Discord.

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00:00:00 Intro and overview
00:00:59 The blockchain trilemma
00:07:47 Previous attempts on the trilemma
00:14:59 The BlockDAG Paradigm
00:20:11 What is a good ordering rule?
00:24:30 PHANTOM
00:32:55 GHOSTDAG
00:46:00 Rationality of GHOSTDAG
00:50:29 Stating the security of GHOSTDAG
01:01:50 Bitcoin security proof overview
01:07:27 GHOSTDAG double-spend security (the freeloading lemma)
01:14:30 Liveness attacks
01:16:23 GHOSTDAG liveness security (hourglass events)
01:18:52 GHOSTDAG confirmation times
01:23:18 The storage problem
01:24:50 Data pruning in blockchains
01:27:40 Splitting and climbing attacks on DAG pruning
01:36:57 Secure DAG pruning via objective finality
01:40:41 Prunable GHOSTDAG and its security
01:43:00 Prunality security proof overview
01:45:52 Pruning block headers
02:03:23 DAGKnight overview
02:10:02 Further topics
02:17:06 Important clarification about DAGKnight
02:20:34 Conclusion