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Proof of Activity Proposal Development & Technical Discussion
No, there is an unexpected twist. Any block of height t containing N txns maps t…
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n/a | iddo | December 01, 2012, 12:49:56 PM |
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Proof of Activity Proposal Development & Technical Discussion
Note: Another option is to get rid of PoW entirely and use txns as a source of a…
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n/a | iddo | December 01, 2012, 08:19:05 AM |
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Proof of Activity Proposal Development & Technical Discussion
Hello cunicula,Blacklisting/heartbeats aren't really necessary. What blacklistin…
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n/a | iddo | November 30, 2012, 06:24:05 AM |
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Market-Based Solution to the Decentralization vs. Speed Trade-off Altcoin Discussion
If there are 100k gold coins, you have to wait for the next 100k txns to show up…
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n/a | iddo | December 01, 2012, 05:25:48 AM |
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Market-Based Solution to the Decentralization vs. Speed Trade-off Altcoin Discussion
I don't think that you explained the tradeoff between txn fees and decentralizat…
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n/a | iddo | November 27, 2012, 04:07:28 PM |
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Market-Based Solution to the Decentralization vs. Speed Trade-off Altcoin Discussion
The trade-off here is about duplication of effort storage and processing effort…
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n/a | iddo | November 27, 2012, 12:07:30 PM |
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Market-Based Solution to the Decentralization vs. Speed Trade-off Altcoin Discussion
1) Decentralization is an important source of a cryptocurrency's value. [If true…
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n/a | iddo | November 27, 2012, 08:39:30 AM |
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Proof of Activity Proposal Development & Technical Discussion
Hello cunicula,To derive a lucky stakeholder, we cannot just select a random add…
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n/a | iddo | November 27, 2012, 06:22:07 AM |
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Proof of Activity Proposal Development & Technical Discussion
P0-S01-S02-S03-P1-S11-S12-S13-P2-...Maybe, this maximizes the reliance on stakeh…
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n/a | iddo | November 15, 2012, 05:47:30 PM |
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Proof of Activity Proposal Development & Technical Discussion
How about this: whenever an address receives at least one coin, we increment a c…
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n/a | iddo | November 26, 2012, 10:59:10 AM |
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Proof of Activity Proposal Development & Technical Discussion
6a) Check if the address has received more than one coin, if so add the…
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n/a | iddo | November 25, 2012, 10:23:57 AM |
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Proof of Activity Proposal Development & Technical Discussion
I don't see how exactly you could store only addresses that hold at least one co…
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n/a | iddo | November 25, 2012, 05:25:14 AM |
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Proof of Activity Proposal Development & Technical Discussion
My intuition still says that heartbeats/blacklisting addresses is infeasible. I'…
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n/a | iddo | November 24, 2012, 10:19:54 AM |
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Proof of Activity Proposal Development & Technical Discussion
Hello gmaxwell,So, one point thats a minor engineering thing but important is th…
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n/a | iddo | August 22, 2012, 03:06:21 AM |
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Proof of Activity Proposal Development & Technical Discussion
Hello cunicula,I'm not sure if you noticed it, but your last post raises a very…
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n/a | iddo | November 14, 2012, 07:47:30 AM |
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Proof of Activity Proposal Development & Technical Discussion
You cannot "not rely" on the stakeholder generated blocks for double-spend preve…
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n/a | iddo | November 14, 2012, 05:27:09 AM |
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Proof of Activity Proposal Development & Technical Discussion
I'm not sure what you mean by weight.I meant the weight for deciding the winning…
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n/a | iddo | November 14, 2012, 03:29:40 AM |
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Proof of Activity Proposal Development & Technical Discussion
Denial of Service:b) select n random stakeholders who will mine mandatory blocks…
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n/a | iddo | November 13, 2012, 11:07:01 AM |
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Proof of Activity Proposal Development & Technical Discussion
I feel like you are trying to address an imaginary problem. Why not just have pe…
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n/a | iddo | November 13, 2012, 06:08:52 AM |
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Proof of Activity Proposal Development & Technical Discussion
Actually, xor'ing the last 5 blocks was a bad idea, because the attacker could g…
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n/a | iddo | November 12, 2012, 10:54:09 AM |
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Proof of Activity Proposal Development & Technical Discussion
If the stakeholders block is mandatory then it indeed provides excellent securit…
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n/a | iddo | November 11, 2012, 05:51:47 PM |
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Proof of Activity Proposal Development & Technical Discussion
A very simple, radically different, and secure PoS algorithm is to appoint an el…
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n/a | iddo | November 10, 2012, 01:22:31 PM |
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Proof of Activity Proposal Development & Technical Discussion
Actually, there is a substantive difference between adding empty blocks security…
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n/a | iddo | November 10, 2012, 11:16:29 AM |
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Proof of Activity Proposal Development & Technical Discussion
As long as the blocks are optional the attacker can just bypass them. They have…
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n/a | iddo | November 09, 2012, 11:31:35 AM |
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Proof of Activity Proposal Development & Technical Discussion
Actually, xor'ing the last 5 blocks was a bad idea, because the attacker could g…
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n/a | iddo | November 09, 2012, 11:46:47 AM |
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Proof of Activity Proposal Development & Technical Discussion
Any non-mandatory solution will only work over a long time intervalThis comment…
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n/a | iddo | November 08, 2012, 04:05:11 PM |
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Proof of Activity Proposal Development & Technical Discussion
Right, oops, my mind was messed up and I forgot that the block is optional.Need…
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n/a | iddo | November 08, 2012, 11:50:15 AM |
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Memcoin Protocol (A CPU/GPU-oriented, very memory hard chain) Altcoin Discussion
Well, a quad Xeon should get ~40 kh/s with r=1, but with r=4096 you get one hash…
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n/a | iddo | November 04, 2012, 11:48:01 AM |
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Proof of Activity Proposal Development & Technical Discussion
3) We can increase T to meet my best case scenario demand that w=0.999. Then, T=…
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n/a | iddo | November 08, 2012, 11:00:53 AM |
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Proof of Activity Proposal Development & Technical Discussion
You are assuming that unsigned blocks are permitted. That is a bad idea. Make si…
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n/a | iddo | November 08, 2012, 12:29:09 PM |
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Proof of Activity Proposal Development & Technical Discussion
Regarding signing-key / limited-withdrawal delegation:Before getting into more u…
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n/a | iddo | November 08, 2012, 12:19:08 PM |
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Proof of Activity Proposal Development & Technical Discussion
As far as generating a random minter every seventh block. I need to know what th…
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n/a | iddo | November 08, 2012, 05:44:04 AM |
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Proof of Activity Proposal Development & Technical Discussion
Right, oops, my mind was messed up and I forgot that the block is optional.Need…
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n/a | iddo | November 08, 2012, 09:03:38 AM |
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Proof of Activity Proposal Development & Technical Discussion
If this lucky stakeholders creates the 7th block and broadcasts it in less than…
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n/a | iddo | November 08, 2012, 07:22:10 AM |
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Proof of Activity Proposal Development & Technical Discussion
Hello cunicula,I'll respond to your other posts soon, but I've come up with a ne…
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n/a | iddo | November 07, 2012, 05:17:09 AM |
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Proof of Activity Proposal Development & Technical Discussion
In terms of analytical simplicty ABAB much simpler than PoA. [promiscuous signi…
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n/a | iddo | November 07, 2012, 10:01:42 AM |
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Proof of Activity Proposal Development & Technical Discussion
1) A modest Proof-of-work advantage (2-fold or 5-fold with 100% participation; l…
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n/a | iddo | November 03, 2012, 10:16:05 AM |
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Proof of Activity Proposal Development & Technical Discussion
Simple Attack where PoA is worse then PoW (no bribery):All chains are signed by…
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n/a | iddo | November 05, 2012, 04:38:17 PM |
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Proof of Activity Proposal Development & Technical Discussion
Regarding whether protection from attackers who deny service (by generating empt…
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n/a | iddo | November 06, 2012, 06:06:07 AM |
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Proof of Activity Proposal Development & Technical Discussion
This sounds like a computationally infeasible task, though maybe I misunderstand…
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n/a | iddo | November 05, 2012, 04:25:20 AM |
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Proof of Activity Proposal Development & Technical Discussion
Simple Attack where PoA is worse then PoW (no bribery):All chains are signed by…
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n/a | iddo | November 05, 2012, 03:58:20 AM |
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Proof of Activity Proposal Development & Technical Discussion
If you require PoA signature(s) to be submitted in conjunction with each mined b…
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n/a | iddo | November 04, 2012, 01:23:26 PM |
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Memcoin Protocol (A CPU/GPU-oriented, very memory hard chain) Altcoin Discussion
It looks like the scaling is non-linear with memory sizeWhat makes you say that?…
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n/a | iddo | November 04, 2012, 11:06:00 AM |
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Proof of Activity Proposal Development & Technical Discussion
I spend at time t in the main branch and I want to revoke this spend. I wait for…
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n/a | iddo | November 04, 2012, 08:31:35 AM |
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Proof of Activity Proposal Development & Technical Discussion |
n/a | iddo | November 04, 2012, 06:35:08 AM |
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Memcoin Protocol (A CPU-oriented, very memory hard chain) Altcoin Discussion
Really someone just needs to implement it with high r values and see what kind o…
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n/a | iddo | November 04, 2012, 04:05:14 AM |
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Memcoin Protocol (A CPU-oriented, very memory hard chain) Altcoin Discussion
3.1) The scrypt parameter r is initialized as 4096, so the initial memory requir…
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n/a | iddo | November 03, 2012, 04:46:06 PM |
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Proof of Activity Proposal Development & Technical Discussion
As far as trading coin-age for interest. It should be really simple. The public…
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n/a | iddo | November 03, 2012, 10:11:18 AM |
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Proof of Activity Proposal Development & Technical Discussion
I haven't read carefully the last post yet (I will a bit later), but I would lik…
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n/a | iddo | November 02, 2012, 10:49:54 AM |
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Proof of Activity Proposal Development & Technical Discussion
I think that there's a mixup between (a) and (b), objective 2 is achieved by (a)…
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n/a | iddo | November 01, 2012, 11:30:06 AM |
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Proof of Activity Proposal Development & Technical Discussion
On the other hand, the PoA scheme as it is doesn't handle the attacker-who-denie…
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n/a | iddo | October 30, 2012, 04:25:07 AM |
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Proof of Activity Proposal Development & Technical Discussion
Hello cunicula,Regarding ABAB:I'm not so sure whether ABAB gives better protecti…
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n/a | iddo | October 29, 2012, 11:06:30 AM |
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Proof of Activity Proposal Development & Technical Discussion
The bribe is paid to people who could have signed the valid chain, but chose not…
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n/a | iddo | October 17, 2012, 04:13:40 AM |
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Proof of Activity Proposal Development & Technical Discussion
There is no secret branch. It is a public attack. It can begin after the seller…
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n/a | iddo | October 17, 2012, 12:01:13 AM |
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Proof of Activity Proposal Development & Technical Discussion
Say for example you buy a large amount of USD and the BTC price goes up. You now…
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n/a | iddo | October 16, 2012, 03:03:03 PM |
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Proof of Activity Proposal Development & Technical Discussion
uses the unofficial client, proof-of-stake has absolutely no security functional…
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n/a | iddo | October 16, 2012, 05:55:28 AM |
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GLBSE Payment Claims (Announce your payment here) Securities
I received that 90% payment message yesterday, and approximately 5 hours after r…
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n/a | iddo | October 16, 2012, 03:24:13 AM |
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Proof of Activity Proposal Development & Technical Discussion
If we agree that (2) is risky then signing-key delegation is probably a bad idea…
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n/a | iddo | October 15, 2012, 06:24:43 PM |
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Proof of Activity Proposal Development & Technical Discussion
We must find a general way to completely eliminate attacks.This statement doesn'…
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n/a | iddo | October 15, 2012, 06:38:59 PM |
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PPCoin is NOT a decentralized cryptocurrency Altcoin Discussion
You are right I don't have a math analysis of how much coins are needed to attem…
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n/a | iddo | October 14, 2012, 05:27:20 PM |
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Proof of Activity Proposal Development & Technical Discussion
We need to make a list of objectives and then identify a proposal which best sat…
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n/a | iddo | October 14, 2012, 12:50:51 PM |
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Proof of Activity Proposal Development & Technical Discussion
OK I wrongly assumed that you wait q blocks and then do q attempts to build your…
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n/a | iddo | October 14, 2012, 09:47:51 AM |
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Proof of Activity Proposal Development & Technical Discussion
I've looked again at this thread and at the discussion between killerstorm and c…
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n/a | iddo | October 13, 2012, 03:02:22 PM |
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Litecoin is more secure than Bitcoin, lower hashrate is nearly irrelevant Altcoin Discussion
It wouldn't be to hard or even that expensive for them to decide to make BTC min…
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n/a | iddo | August 28, 2012, 06:05:17 PM |
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Litecoin is more secure than Bitcoin, lower hashrate is nearly irrelevant Altcoin Discussion
By this argument you could also say that it's easier for the govt to break scryp…
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n/a | iddo | August 28, 2012, 07:18:57 AM |
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Will Litecoin be the first ASIC-proof alt-coin? Altcoin Discussion
Yes, the scrypt parameters in Litecoin were a compromise, 128k fits into L2 cach…
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n/a | iddo | August 27, 2012, 02:20:43 PM |
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Will Litecoin be the first ASIC-proof alt-coin? Altcoin Discussion
Quotehttps://bitcointalk.org/index.php?topic=103648.msg1136982#msg1136982You mis…
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n/a | iddo | August 27, 2012, 01:26:46 PM |
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Will Litecoin be the first ASIC-proof alt-coin? Altcoin Discussion
But there are already manufacturing pipelines for the current PC design, so the…
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n/a | iddo | August 27, 2012, 12:08:39 PM |
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Will Litecoin be the first ASIC-proof alt-coin? Altcoin Discussion
Um ASIC was always available for the attacker.The whole point of scrypt is that…
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n/a | iddo | August 27, 2012, 11:46:51 AM |
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Will Litecoin be the first ASIC-proof alt-coin? Altcoin Discussion
Do you mean 1-2 gig to verify the hash of single block? How long do you think it…
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n/a | iddo | August 27, 2012, 11:37:21 AM |
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Litecoin is more secure than Bitcoin, lower hashrate is nearly irrelevant Altcoin Discussion
You consider only the botnet attack, and proclaim that Bitcoin is more secure be…
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n/a | iddo | August 27, 2012, 10:33:21 AM |
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Will Litecoin be the first ASIC-proof alt-coin? Altcoin Discussion
every 18 months and start with the memory requirement at 6-8 gigabytes per proce…
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n/a | iddo | August 27, 2012, 04:48:22 AM |
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Proof of Activity Proposal Development & Technical Discussion
I support the brainstorming of other ideas. Sorry if I came across badly. I just…
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n/a | iddo | August 26, 2012, 08:35:01 AM |
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Proof of Activity Proposal Development & Technical Discussion
Hello cunicula,Your protocol may be the most secure in terms of double-spending,…
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n/a | iddo | August 26, 2012, 06:06:53 AM |
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LTC and ASICS Beginners & Help
What is the proposed "hard fork" you talk of? Something to stop GPUs working on…
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n/a | iddo | August 25, 2012, 06:44:52 PM |
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Proof of Activity Proposal in Litecoin Altcoin Discussion
Yes, proof-of-stake becomes less secure than pure proof-of-work if the majority…
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n/a | iddo | August 25, 2012, 03:58:43 AM |
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Will Litecoin be the first ASIC-proof alt-coin? Altcoin Discussion
Bitcoin can become ASIC-proof by just changing the hashing algorithm."can"=="cou…
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n/a | iddo | August 25, 2012, 03:50:06 AM |
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LTC and ASICS Beginners & Help
It's highly unlikely that you'll see Litecoin ASICs, producing scrypt ASICs isn'…
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n/a | iddo | August 25, 2012, 03:14:33 AM |
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Deterministic wallets Development & Technical Discussion
I'd like to add to this thread the simple explanation why the crypto behind dete…
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n/a | iddo | February 27, 2012, 11:30:25 AM |
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Proof of Activity Proposal Development & Technical Discussion
Yes, if you store more data than just the signature, then it's no longer RPA (bu…
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n/a | iddo | August 23, 2012, 07:21:33 AM |
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Proof of Activity Proposal Development & Technical Discussion
QuoteImplementing voting weights is complex and probably involves computationall…
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n/a | iddo | August 23, 2012, 01:53:09 AM |
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Proof of Activity Proposal Development & Technical Discussion
However, there's a crypto issue with this suggestion: we would include a signatu…
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n/a | iddo | August 23, 2012, 03:17:50 AM |
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Proof of Activity Proposal Development & Technical Discussion
If you want a really good challenge to work on, I suggest:4) eliminate the need…
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n/a | iddo | August 22, 2012, 10:46:01 PM |
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[PPC] PPCoin 0.2 Proposal Altcoin Discussion
You're quite economic with providing exact details of how your protocol behaves,…
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n/a | iddo | August 22, 2012, 07:01:33 AM |
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Proof of Activity Proposal Development & Technical Discussion
I'd like to raise two additional issues that weren't mentioned in coblee's OP, m…
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n/a | iddo | August 22, 2012, 06:03:33 AM |
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Proof of Activity Proposal Development & Technical Discussion
Hello killerstorm,What do you mean by "it is not necessary to have a full block…
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n/a | iddo | August 22, 2012, 05:42:23 AM |
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[PPC] PPCoin 0.2 Proposal Altcoin Discussion
Double spending will be hard exactly the same way as in Bitcoin, because generat…
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n/a | iddo | August 21, 2012, 05:38:46 PM |
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[PPC] PPCoin 0.2 Proposal Altcoin Discussion
The main chain protocol will now score based on proof-of-stake difficulty. Pleas…
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n/a | iddo | August 21, 2012, 05:06:18 PM |
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[ANN] [PPC] PPCoin Released! - First Long-Term Energy-Efficient Crypto-Currency Announcements (Altcoins)
The centrally broadcasted checkpoints mechanism sounds like an extremely bad ide…
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n/a | iddo | August 20, 2012, 04:35:34 PM |
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DoS attacks on proof-of-stake Altcoin Discussion
From the whitepaper:QuoteThe block chain with highest total consumed coin age is…
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n/a | iddo | August 20, 2012, 04:18:03 PM |
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[ANN] [PPC] PPCoin Released! - First Long-Term Energy-Efficient Crypto-Currency Announcements (Altcoins)
Hello Sunny King,So a stakeholder (without investing in any high-hashpower hardw…
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n/a | iddo | August 20, 2012, 05:14:35 AM |
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DoS attacks on proof-of-stake Altcoin Discussion
The security issue raised by large balance hot wallets could be dealt with as fo…
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n/a | iddo | August 19, 2012, 04:24:47 AM |
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[Announcement] Litecoin-based BFL Singles Altcoin Discussion
Yes obvious scam, and even if it was legit there's a risk that a Litecoin hard f…
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n/a | iddo | August 12, 2012, 11:55:40 AM |
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New LTC exchange concept Altcoin Discussion
OK cool, anyhow for bcrypt/scrypt comparison see for example the chart near the…
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n/a | iddo | August 01, 2012, 05:22:44 PM |
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New LTC exchange concept Altcoin Discussion
Just curious, why bcrypt and not scrypt? Have you read the scrypt article/slides…
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n/a | iddo | August 01, 2012, 01:49:30 PM |
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Poll - Should Proof of Stake be implemented in Litecoin? Altcoin Discussion
OK, apologies, when I read this part of your first post,* Cementing is a node's…
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n/a | iddo | August 01, 2012, 08:40:01 AM |
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New LTC exchange concept Altcoin Discussion
Do not make the classic mistake of storing passwords using md5, sha1, sha256, sh…
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n/a | iddo | August 01, 2012, 07:36:25 AM |
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Poll - Should Proof of Stake be implemented in Litecoin? Altcoin Discussion
QuoteI'm asking about the basic concept, please avoid the added complexities of…
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n/a | iddo | August 01, 2012, 05:48:00 AM |
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Poll - Should Proof of Stake be implemented in Litecoin? Altcoin Discussion
I don't understand, are you suggesting that each node will simply cement after s…
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n/a | iddo | August 01, 2012, 03:21:03 AM |
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Poll - Should Proof of Stake be implemented in Litecoin? Altcoin Discussion
One question that keeps coming up to me in this debate about proof of stake:Why…
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n/a | iddo | August 01, 2012, 02:30:26 AM |
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