Re: [bitcoin-dev] Some thoughts on removing timestamps in PoW

2018-02-19 Thread Daniele Pinna via bitcoin-dev
Granted that removing the 21M coin cap is basically a non-starter in de bitcoin community I'd like to respond to a couple points in your proposal. The Y% difficulty adjustment should still be calculated through some averaging of a certain number N of past blocks. Otherwise two lucky high difficult

Re: [bitcoin-dev] Rebatable fees & incentive-safe fee markets

2017-09-29 Thread Daniele Pinna via bitcoin-dev
Maybe I'm getting this wrong but wouldn't this scheme imply that a miner is incentivized to limit the amount of transactions in a block to capture the maximum fee of the ones included? As an example, mined blocks currently carry ~0.8 btc in fees right now. If I were to submit a transaction paying

Re: [bitcoin-dev] UTXO growth scaling solution proposal

2017-08-22 Thread Daniele Pinna via bitcoin-dev
Also how is this not a tax on coin holders? By forcing people to move coins around you would be chipping away at their wealth in the form of extorted TX fees. ___ bitcoin-dev mailing list bitcoin-dev@lists.linuxfoundation.org https://lists.linuxfounda

Re: [bitcoin-dev] Barry Silbert segwit agreement

2017-05-22 Thread Daniele Pinna via bitcoin-dev
I couldn't agree more. It would require however for the Devs to throw their weight behind this with a lot of momentum. Spoonnet has been under development for quite some time now. Counter offering SegWit plus Spoonnet 12-24 months later would be a very progressive stance that I think would catch th

Re: [bitcoin-dev] BIP proposal: Inhibiting a covert attack on the Bitcoin POW function

2017-04-06 Thread Daniele Pinna via bitcoin-dev
Can you please not forget to supply us more details on the claims made regarding the reverse engineering of the Asic chip? It is absolutely crucial that we get these independently verified ASAP. Daniele Message: 2 > Date: Thu, 6 Apr 2017 21:38:31 + > From: Gregory Maxwell > To: Bitcoin Dev

Re: [bitcoin-dev] Hard fork proposal from last week's meeting

2017-03-29 Thread Daniele Pinna via bitcoin-dev
What about periodically committing the entire UTXO set to a special checkpoint block which becomes the new de facto Genesis block? Daniele -- Message: 5 Date: Wed, 29 Mar 2017 16:41:29 + From: Andrew Johnson To: David Vorick Cc: Bitcoin Dev Subject: Re: [bitcoi

Re: [bitcoin-dev] Three hardfork-related BIPs

2017-01-27 Thread Daniele Pinna via bitcoin-dev
Your BIP implementation should stress the capacity to softfork the rate of blocksize increase if necessary. You briefly mention that: *If over time, this growth factor is beyond what the actual technology offers, the intention should be to soft fork a tighter limit.* However this can work both wa

Re: [bitcoin-dev] Managing block size the same way we do difficulty (aka Block75)

2016-12-10 Thread Daniele Pinna via bitcoin-dev
ged in against their will? Daniele On Dec 10, 2016 6:39 PM, "Pieter Wuille" wrote: > On Sat, Dec 10, 2016 at 4:23 AM, Daniele Pinna via bitcoin-dev < > bitcoin-dev@lists.linuxfoundation.org> wrote: > >> We have models for estimating the probability that a block is or

Re: [bitcoin-dev] Managing block size the same way we do difficulty (aka Block75)

2016-12-10 Thread Daniele Pinna via bitcoin-dev
We have models for estimating the probability that a block is orphaned given average network bandwidth and block size. The question is, do we have objective measures of these two quantities? Couldn't we target an orphan_rate < max_rate? On Dec 10, 2016 1:01 PM, wrote: Send bitcoin-dev mailing

Re: [bitcoin-dev] bitcoin-dev Digest, Vol 10, Issue 13

2016-03-08 Thread Daniele Pinna via bitcoin-dev
This seems unnecessarily complicated ("don't use cannon to kill mosquito" kind of thing). If the community were interested in a realtime hashrate rebalancing proposal one could simply adjust difficulty at each new block using the current method. If faster relaxation in case of adversity is require

Re: [bitcoin-dev] Capacity increases for the Bitcoin system.

2015-12-09 Thread Daniele Pinna via bitcoin-dev
If SegWit were implemented as a hardfork, could the entire blockchain be reorganized starting from the Genesis block to free up historical space? ___ bitcoin-dev mailing list bitcoin-dev@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/

Re: [bitcoin-dev] Dev-list's stance on potentially altering the PoW algorithm

2015-10-02 Thread Daniele Pinna via bitcoin-dev
Interesting! I didn't notice BIP 99's anti-miner hardfork proposal thanks for pointing it out to me. Dpinna Daniele Pinna, Ph.D On Fri, Oct 2, 2015 at 10:20 AM, Jorge Timón wrote: > > On Oct 2, 2015 10:03 AM, "Daniele Pinna via bitcoin-dev" < > bitcoin-dev@

Re: [bitcoin-dev] Dev-list's stance on potentially altering the PoW algorithm

2015-10-02 Thread Daniele Pinna via bitcoin-dev
om memory hard. > > Adam > > On 2 October 2015 at 10:02, Daniele Pinna via bitcoin-dev > wrote: > > The following paper proposing an asymmetric memory-hard PoW had been > > recently published: > > > > http://eprint.iacr.org/2015/946.pdf > > > >

[bitcoin-dev] Dev-list's stance on potentially altering the PoW algorithm

2015-10-02 Thread Daniele Pinna via bitcoin-dev
The following paper proposing an asymmetric memory-hard PoW had been recently published: http://eprint.iacr.org/2015/946.pdf My intent is not to promote the paper as I have not finished studying it myself. I am however interested in the dev-list's stance on potentially altering the bitcoin PoW pr

Re: [bitcoin-dev] ERRATA CORRIGE + Short Theorem

2015-09-01 Thread Daniele Pinna via bitcoin-dev
My paper did show that the advantage decreased with the block reward. However, in that limit, it also seemed to imply that a network state would appear where the revenue per unit hash decreased with increasing hashrate which should be impossible as just discussed. In a followup email, I showed how

Re: [bitcoin-dev] "A Transaction Fee Market Exists Without a Block Size Limit"--new research paper suggests

2015-08-30 Thread Daniele Pinna via bitcoin-dev
"However, that is outside the scope of the result that an individual miner's profit per block is always maximized at a finite block size Q* if Shannon Entropy about each transaction is communicated during the block solution announcement. This result is important because it explains how a minimum f

[bitcoin-dev] ERRATA CORRIGE + Short Theorem

2015-08-30 Thread Daniele Pinna via bitcoin-dev
Since my longer post seems to be caught in moderator purgatory I will rehash its results into this much smaller message. I apologize for the spamming. I present a theorem whose thesis is obvious to many. *THESIS: All hashrates* *h' > h generate a revenue per unit of hash v' > v. * Let us absurdl

Re: [bitcoin-dev] Unlimited Max Blocksize (reprise)

2015-08-30 Thread Daniele Pinna via bitcoin-dev
s-in-Uncapped-Block-Size-Fee-Markets Daniele Pinna, Ph.D On Thu, Aug 27, 2015 at 12:59 AM, Tom Harding wrote: > > Thanks for posting this. I'm very interested to read your paper when it > is available. > > > > On 8/26/2015 3:22 PM, Daniele Pinna via bitcoin-dev wrote: >

[bitcoin-dev] On the Nature of Miner Advantages in Uncapped Block Size Fee Markets

2015-08-29 Thread Daniele Pinna via bitcoin-dev
I'd like to submit this paper to the dev-list which analyzes how miner advantages scale with network and mempool properties in a scenario of uncapped block sizes. The work proceeds, in a sense, from where Peter R's work left off correcting a mistake and addressing the critiques made by the communit

[bitcoin-dev] Unlimited Max Blocksize (reprise)

2015-08-26 Thread Daniele Pinna via bitcoin-dev
I don't get how it's very risky to have the Mike and Gavin redirect the course of the bitcoin protocol but it's totally fine to consider complex miner voting protocols as a hard fork option. I believe that this community has not given due weight to the analysis proposed by Peter__R on the existenc

Re: [bitcoin-dev] Dynamically Controlled Bitcoin Block Size Max C

2015-08-21 Thread Daniele Pinna via bitcoin-dev
"I ran some simulations, and if blocks take 20 seconds to propagate, a network with a miner that has 30% of the hashing power will get 30.3% of the blocks." Peter_R's analysis of fee markets in the absence of blocksize limits [1] shows that the hashrate advantage of a large miner is a side-effect