2015-10-30 00:53
sipa changed the topic of #bitcoin-wizards to: This channel is for discussing theoretical ideas with regard to cryptocurrencies, not about short-term Bitcoin development |
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<
bsm1175321 >
that's great, thanks kanzure!!!
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<
bsm1175321 >
FWIW I hate any protocol that falls back on the ill-defined word "trust". That's where I think the entire Ripple ecosystem has gone wrong...
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bsm1175321 >
But I feel I should comment on this in my paper. Any further comments are welcome...
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<
bsm1175321 >
As an aside, I've discovered that in my braids framework, I can remove the block time in favor of measuring the minimum cohort time with respect to difficulty (which is a function of network topology) and retargeting to stay at the minimum block time. Thus I think I can achieve a faster network than SCP or PBFT.
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<
bsm1175321 >
In those SCP or PBFT, there are several round trips required between the leader and all other nodes to decide a quorum, and for the propose, pre-commit, commit, phases (6 round trips) where by contrast my proposal essentially requires 1/3 of a round-trip for consensus (assuming miners distributed on vertices of a tetrahedtron -- largest equidistant setup on the surface of a sphere).
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bsm1175321 >
TL;DR I think I can bring the settlement time of a PoW blockchain down to ~few seconds, and it can be guaranteed to be faster than any leader-based protocol.
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gwillen >
bsm1175321: hmm, I am intrigued and would love links to read me
01:09
<
gwillen >
read more*
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<
bsm1175321 >
Unfortunately there's a fairly hard limit to how fast it can get, due to causality. So individual transaction signing won't work, aggregation into beads (blocks) at the ~few second time is still required.
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<
bsm1175321 >
gwillen: coming soon to a preprint server near you.
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<
amiller >
bsm1175321, PBFT is really old fashioned, if you want efficiency in optimistic case its far from state of the art
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bsm1175321 >
amiller: "optimistic" is the key word. Forks handle the optimism in Bitcoin and my modification of it.
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bsm1175321 >
amiller: other optimistic refs would be appreciated, I just read lamport's 2011 Byzantine PAXOS (short) paper...
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bsm1175321 >
Lamport points out that the non-optimistic case is very bad: you can have up to N*F rounds of leader election for N nodes and F failing nodes.
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* Luke-Jr
ponders if anyone would object to using this channel for discussing concrete hardfork ideas?
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<
fluffypony >
Luke-Jr: I would think that falls into "theoretical ideas", on some level
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<
wumpus >
as long as it's not about development side of bit but the theoretical side that's exactly what this chanenl is for
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<
bsm1175321 >
Luke-Jr: I welcome it
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<
bsm1175321 >
Ah yes, I do think Braids and Honey Badger is probably the most apt comparision...forgot about that one.
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<
fluffypony >
btc: no.
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