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Virtual currency without block chain Altcoin Discussion
The double spending problem is completely eliminated by having unique coin IDs a…
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n/a | Anders | October 04, 2014, 05:15:25 AM |
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Virtual currency without block chain Altcoin Discussion
Hmm... Wait a minute. If a central authority like the U.S. government issued the…
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n/a | Anders | October 04, 2014, 01:17:08 AM |
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Virtual currency without block chain Altcoin Discussion
the double spend and counterfeit problems are solved, yet the problem of ensurin…
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n/a | Anders | October 04, 2014, 12:50:10 AM |
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Virtual currency without block chain Altcoin Discussion
the double spend and counterfeit problems are solved, yet the problem of ensurin…
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n/a | Anders | October 04, 2014, 12:36:20 AM |
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Virtual currency without block chain Altcoin Discussion
Blockless blockchain is possible, but locks are necessary to reduce transaction…
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n/a | Anders | October 03, 2014, 04:38:11 PM |
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Virtual currency without block chain Altcoin Discussion
There have been a few occasions when a trusted CA certificates were compromised…
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n/a | Anders | October 03, 2014, 04:22:51 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
One problem with a PoW that requires lots of memory is that sooner or later, spe…
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n/a | Anders | October 03, 2014, 04:07:57 PM |
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Virtual currency without block chain Altcoin Discussion
As I expected, a distributed hash table can be messed up by mischievous nodes. K…
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n/a | Anders | October 03, 2014, 02:35:39 PM |
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Virtual currency without block chain Altcoin Discussion
Ok, a distributed real-time server could be tricky to develop, but if we assume…
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n/a | Anders | October 03, 2014, 01:43:10 PM |
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Virtual currency without block chain Altcoin Discussion
Safecoin handles it in this way:"A separate persona, the TransactionManager, is…
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n/a | Anders | October 03, 2014, 01:25:50 PM |
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Virtual currency without block chain Altcoin Discussion
I thought that maybe a distributed real-time server could solve that.It certainl…
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n/a | Anders | October 03, 2014, 12:50:54 PM |
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Virtual currency without block chain Altcoin Discussion
5. B checks the distributed hash table to verify ownership.The problem here is t…
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n/a | Anders | October 03, 2014, 11:31:37 AM |
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Virtual currency without block chain Altcoin Discussion
Cryptonite has a mini-blockchain similar to your proposal, but it's not complete…
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n/a | Anders | October 03, 2014, 06:49:03 AM |
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Virtual currency without block chain Altcoin Discussion
Without a block chain, there will be no way to search the past transaction histo…
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n/a | Anders | October 03, 2014, 12:42:31 AM |
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Virtual currency without block chain Altcoin Discussion
There is already a virtual currency without a block chain! Safecoin is a part of…
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n/a | Anders | October 02, 2014, 10:58:53 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Anyone interested in implementing an elliptic curve PoW? As a test of concept. O…
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n/a | Anders | October 02, 2014, 03:29:58 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
I read that there are actually some elliptic curves that are cryptographically w…
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n/a | Anders | October 02, 2014, 05:00:15 AM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Large memory PoW with fast verification, third version:The miner sends h and λi…
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n/a | Anders | October 02, 2014, 10:33:02 AM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Ouch. The equation pi = λiG has no general solution in the sense that there is a…
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n/a | Anders | October 02, 2014, 09:19:25 AM |
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ASIC-resistant Proof of Work Mining (Altcoins)
This is similar to, but more complicated than Momentum, which asks for a simple…
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n/a | Anders | October 01, 2014, 05:22:04 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Large memory PoW with fast verification, updated version:The miner sends h and λ…
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n/a | Anders | October 01, 2014, 04:34:53 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Large memory PoW with fast verification, updated version:The miner sends h and λ…
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n/a | Anders | October 01, 2014, 02:15:06 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
No, in EC crypto the λ is the private key. The difficult part is finding λ given…
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n/a | Anders | October 01, 2014, 01:07:35 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
The last part makes no sense since G is defined as λP, so there's nothing to ful…
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n/a | Anders | October 01, 2014, 12:04:11 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
As proof, the miner sends h and P. Verification is first done by taking i = h MO…
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n/a | Anders | October 01, 2014, 11:17:36 AM |
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ASIC-resistant Proof of Work Mining (Altcoins)
As proof, the miner sends h and P. Verification is first done by taking i = h MO…
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n/a | Anders | October 01, 2014, 10:07:54 AM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Large memory PoW algorithm with fast verification:A large list of N elliptic cur…
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n/a | Anders | October 01, 2014, 03:28:35 AM |
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ASIC-resistant Proof of Work Mining (Altcoins)
hey guys, what can you say about scrypt-in-motion? aptcoinhttps://bitcointalk.or…
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n/a | Anders | October 01, 2014, 12:47:42 AM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Some altcoins use scrypt-N in the sense that the memory requirement can be incre…
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n/a | Anders | September 30, 2014, 01:13:33 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Some altcoins use scrypt-N in the sense that the memory requirement can be incre…
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n/a | Anders | September 30, 2014, 01:01:08 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
"Re: ASIC-resistant Proof of Work"this has essentially been solved in two ways,…
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n/a | Anders | September 30, 2014, 12:18:47 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
I remain convinced non-cryptographic pow will very likely be decentralized. Just…
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n/a | Anders | September 30, 2014, 12:21:37 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Hey! ASICs could check multiple elliptic points in parallel. So when a SHA-256d…
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n/a | Anders | September 30, 2014, 11:16:44 AM |
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ASIC-resistant Proof of Work Mining (Altcoins)
"Re: ASIC-resistant Proof of Work"this has essentially been solved in two ways,…
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n/a | Anders | September 30, 2014, 09:38:20 AM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Hmm... Ok. Darn. I think my random index jumping would work, but it does require…
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n/a | Anders | September 30, 2014, 09:20:49 AM |
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ASIC-resistant Proof of Work Mining (Altcoins)
The elliptic curve PoW addition is backward compatible with the current Bitcoin…
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n/a | Anders | September 30, 2014, 08:01:43 AM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Maybe numbers of an elliptic curve E could be used. And the PoW algorithm uses t…
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n/a | Anders | September 30, 2014, 05:17:01 AM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Maybe numbers of an elliptic curve E could be used. And the PoW algorithm uses t…
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n/a | Anders | September 29, 2014, 11:49:39 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Hmm... Ok. Darn. I think my random index jumping would work, but it does require…
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n/a | Anders | September 29, 2014, 04:07:47 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
And the number of iterations must be low enough so that validation of blocks bec…
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n/a | Anders | September 29, 2014, 03:48:08 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
ASICs can calculate hash functions very fast but not practically have much memor…
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n/a | Anders | September 29, 2014, 02:44:01 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
And the number of iterations must be low enough so that validation of blocks bec…
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n/a | Anders | September 29, 2014, 03:34:28 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Use the search button.. a lot of people have tried to do this in various ways..…
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n/a | Anders | September 29, 2014, 01:47:07 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Another solution for RHA is to use a fixed pre-calculated list of values. And th…
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n/a | Anders | September 29, 2014, 12:37:12 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Ouch, SHA-256 is pretty slow on a CPU. Crypto++ 5.6.0 Benchmarks -- http://www.c…
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n/a | Anders | September 29, 2014, 12:22:32 PM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Remember that the block hash must be quickly verifiable. This means that calcula…
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n/a | Anders | September 29, 2014, 11:49:52 AM |
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ASIC-resistant Proof of Work Mining (Altcoins)
I have learned that proof of work (PoW) easy to do with ASICs may actually be a…
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n/a | Anders | September 29, 2014, 07:29:49 AM |
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BTC fees and micropayments Development & Technical Discussion
Here is one example of how Bitcoin can be made to handle more transactions:Scali…
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n/a | Anders | September 26, 2014, 02:51:38 PM |
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BTC fees and micropayments Development & Technical Discussion
0-confirmation transactions plus increase in capacity in the Bitcoin protocol to…
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n/a | Anders | September 23, 2014, 02:49:41 PM |
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Is calendar time used in the Bitcoin network? Development & Technical Discussion
Can a 55% attack on timestamps be done to mess up the blockchain?Clearly not, si…
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n/a | Anders | September 22, 2014, 03:10:16 PM |
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Is calendar time used in the Bitcoin network? Development & Technical Discussion
- snip -I think asking amateur questions can be helpful also for other people wh…
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n/a | Anders | September 22, 2014, 02:31:09 PM |
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Is calendar time used in the Bitcoin network? Development & Technical Discussion
Does that mean that if the Bitcoin protocol is changed so that all nodes check f…
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n/a | Anders | September 22, 2014, 01:52:19 PM |
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Is calendar time used in the Bitcoin network? Development & Technical Discussion
Does that mean that if the Bitcoin protocol is changed so that all nodes check f…
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n/a | Anders | September 22, 2014, 01:46:32 PM |
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Is calendar time used in the Bitcoin network? Development & Technical Discussion
This means that if for example the Chinese government wants to mess with bitcoin…
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n/a | Anders | September 22, 2014, 11:36:49 AM |
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Is calendar time used in the Bitcoin network? Development & Technical Discussion
This means that if for example the Chinese government wants to mess with bitcoin…
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n/a | Anders | September 22, 2014, 10:34:57 AM |
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Is calendar time used in the Bitcoin network? Development & Technical Discussion
This means that if for example the Chinese government wants to mess with bitcoin…
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n/a | Anders | September 22, 2014, 10:16:57 AM |
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Is calendar time used in the Bitcoin network? Development & Technical Discussion
https://en.bitcoin.it/wiki/Block_timestamp"A timestamp is accepted as valid if i…
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n/a | Anders | September 22, 2014, 12:50:18 AM |
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Why big whales avoid bitcoin Speculation
Well they can try to avoid, downplay or even denounce Bitcoin, but you can't sto…
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n/a | Anders | September 21, 2014, 03:21:41 PM |
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Why big whales avoid bitcoin Speculation
Because the time to invest was when bitcoin was single and double digits? Now yo…
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n/a | Anders | September 21, 2014, 02:18:38 PM |
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Why big whales avoid bitcoin Speculation
To speculate a bit, the reason for why the really big investors apparently avoid…
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n/a | Anders | September 21, 2014, 01:50:48 PM |
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Is calendar time used in the Bitcoin network? Development & Technical Discussion
The "current time" on the Bitcoin network is a median of the time of last 11 blo…
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n/a | Anders | September 21, 2014, 12:42:43 PM |
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Is calendar time used in the Bitcoin network? Development & Technical Discussion
I read that: "The difficulty is adjusted every 2016 blocks based on the time it…
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n/a | Anders | September 21, 2014, 12:25:22 PM |
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Is calendar time used in the Bitcoin network? Development & Technical Discussion
every block has timestamp which is checked by some rulesso it is easy to calcula…
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n/a | Anders | September 21, 2014, 12:21:37 PM |
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Is calendar time used in the Bitcoin network? Development & Technical Discussion
I read that: "The difficulty is adjusted every 2016 blocks based on the time it…
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n/a | Anders | September 21, 2014, 12:04:28 PM |
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btcaddr.me - Bitcoin Address Identicon Development & Technical Discussion
I made another identicon generator: http://jsfiddle.net/Lqfrmao8/Original Bitcoi…
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n/a | Anders | September 20, 2014, 10:24:14 AM |
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btcaddr.me - Bitcoin Address Identicon Development & Technical Discussion
I made a simple identicon generator (live demo): http://jsfiddle.net/6khq75d3/Or…
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n/a | Anders | September 20, 2014, 07:02:56 AM |
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What if SHA-256 is a poor random oracle? Development & Technical Discussion
I read that Average Transaction Confirmation Time is "The Average time take for…
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n/a | Anders | September 20, 2014, 01:05:57 AM |
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What if SHA-256 is a poor random oracle? Development & Technical Discussion
You are confusing your own topic. Tx confirmation times have nothing to do with…
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n/a | Anders | September 20, 2014, 12:09:13 AM |
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What if SHA-256 is a poor random oracle? Development & Technical Discussion
Apparently you think this is the time between blocks? No, it isn't and you have…
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n/a | Anders | September 19, 2014, 08:42:30 AM |
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Why bitcoin price is falling ? Speculation
Oh no! $389.51 on coinmarketcap. That makes my prediction fail. I predicted that…
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n/a | Anders | September 19, 2014, 08:01:48 AM |
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What if SHA-256 is a poor random oracle? Development & Technical Discussion
Apparently you think this is the time between blocks? No, it isn't and you have…
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n/a | Anders | September 19, 2014, 07:47:59 AM |
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What if SHA-256 is a poor random oracle? Development & Technical Discussion
This metric has nothing to do with SHA256's viability as PoW algorithm.I found w…
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n/a | Anders | September 19, 2014, 07:38:36 AM |
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What if SHA-256 is a poor random oracle? Development & Technical Discussion
Here are the transaction confirmation time and volume graphs with corrected x-ax…
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n/a | Anders | September 19, 2014, 06:05:51 AM |
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What if SHA-256 is a poor random oracle? Development & Technical Discussion
Your comparison does not make sense anyways - transactions suddenly taking longe…
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n/a | Anders | September 19, 2014, 06:03:17 AM |
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What if SHA-256 is a poor random oracle? Development & Technical Discussion
Notice here the green line that shows that the increase in confirmation times ha…
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n/a | Anders | September 19, 2014, 05:10:17 AM |
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What if SHA-256 is a poor random oracle? Development & Technical Discussion
It is transaction confirmation time, not block time. The transaction volume burs…
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n/a | Anders | September 18, 2014, 04:30:12 PM |
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[2014-09-15] two-bit-idiot: Adept - IBM, Samsung, Bitcoin? Press
Adept could be just an experiment, or it may become huge! Centralized solutions…
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n/a | Anders | September 18, 2014, 03:32:02 PM |
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What if SHA-256 is a poor random oracle? Development & Technical Discussion
Not sure why you are looking at transaction confirmation times?But the blockinfo…
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n/a | Anders | September 18, 2014, 12:15:58 PM |
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Rule 30 automaton as hash function Development & Technical Discussion
Will PoW with R30 consume a lot of electricity? Yes, about the same as for SHA-2…
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n/a | Anders | September 18, 2014, 10:04:56 AM |
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What if SHA-256 is a poor random oracle? Development & Technical Discussion
Notice here the green line that shows that the increase in confirmation times ha…
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n/a | Anders | September 18, 2014, 09:12:12 AM |
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What if SHA-256 is a poor random oracle? Development & Technical Discussion
It is transaction confirmation time, not block time. The transaction volume burs…
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n/a | Anders | September 18, 2014, 08:37:09 AM |
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What if SHA-256 is a poor random oracle? Development & Technical Discussion
I found what looks like something that could be poor random oracle behavior of S…
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n/a | Anders | September 18, 2014, 02:19:22 AM |
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Rule 30 automaton as hash function Development & Technical Discussion
The same problem will remain with R30. A hardfork like that would only buy some…
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n/a | Anders | September 17, 2014, 02:37:09 PM |
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Rule 30 automaton as hash function Development & Technical Discussion
Can R30 be calculated fast with ASICs? Yes, very fast."A High Performance ASIC f…
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n/a | Anders | September 17, 2014, 12:46:20 AM |
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Rule 30 automaton as hash function Development & Technical Discussion
... it would make it a great candidate for an potential pow hardfork if mining c…
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n/a | Anders | September 16, 2014, 11:25:05 PM |
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Rule 30 automaton as hash function Development & Technical Discussion
Oh, now I understand why people here have talked about using the Rule 30 cellula…
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n/a | Anders | September 16, 2014, 12:50:46 AM |
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ASIC-resistant Proof of Work Mining (Altcoins)
https://download.wpsoftware.net/bitcoin/asic-faq.pdfQuestions 2.5 and 2.6 cover…
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n/a | Anders | September 15, 2014, 09:02:25 AM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Quotefor a problem like factorization of integers an ASIC wouldn't be that much…
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n/a | Anders | September 15, 2014, 07:06:27 AM |
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ASIC-resistant Proof of Work Mining (Altcoins)
QuoteToday ASICs can easily calculate SHA-256 for bitcoin mining. As an alternat…
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n/a | Anders | September 15, 2014, 06:40:27 AM |
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ASIC-resistant Proof of Work Mining (Altcoins)
Today ASICs can easily calculate SHA-256 for bitcoin mining. As an alternative p…
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n/a | Anders | September 15, 2014, 02:21:59 AM |
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Virtual currency without block chain Altcoin Discussion
A virtual currency without block chain ? Is that a centrenlized coin?I guess th…
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n/a | Anders | September 14, 2014, 08:22:16 AM |
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Virtual currency without block chain Altcoin Discussion
A virtual currency can be designed by issuing coins with unique ids connected to…
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n/a | Anders | September 14, 2014, 06:25:09 AM |
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What if SHA-256 is a poor random oracle? Development & Technical Discussion
Hey! I came to think about an idea of how to measure SHA-256's random oracle beh…
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n/a | Anders | September 14, 2014, 03:01:46 AM |
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What if SHA-256 is a poor random oracle? Development & Technical Discussion
Are you kidding? SHA256 was made by the NSA. They would never promote a faulty s…
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n/a | Anders | September 13, 2014, 10:14:23 PM |
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What if SHA-256 is a poor random oracle? Development & Technical Discussion
As the Bitcoin mining power increases, the target for the SHA-256 hash value bec…
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n/a | Anders | September 13, 2014, 09:06:23 AM |
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Faster bitcoin transaction times Development & Technical Discussion
I have changed my mind. To have a layer on top of Bitcoin for faster transaction…
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n/a | Anders | September 13, 2014, 03:23:32 AM |
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Faster bitcoin transaction times Development & Technical Discussion
Would it be possible to use Open Transactions on top of Bitcoin for fast transac…
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n/a | Anders | September 07, 2014, 04:04:04 PM |
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Bitcoin as a socially fair currency Economics
"Citigroup currency analyst Steven Englander is out with a long Sunday note talk…
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n/a | Anders | August 24, 2014, 06:15:05 PM |
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Bitcoin as a socially fair currency Economics
They, the mega whales, want to keep dominating the markets and not let today's b…
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n/a | Anders | August 24, 2014, 05:45:07 PM |
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Bitcoin as a socially fair currency Economics
They, the mega whales, want to keep dominating the markets and not let today's b…
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n/a | Anders | August 24, 2014, 02:32:07 PM |
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