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6 January 2025
| N 07:12 | Code assignments diffhist +3,461 Robertsdotpm talk contribs (Created page with "I'm a software engineer and while there are many out there who are better -- my skills are decent enough. When software engineers apply to jobs its common to be asked to do a "code assignment." This is where the company will give you some (basic) task, you'll write a solution, and based on some (undefined) standard they will advance you to the next stage. I've often seen discussions about take home code assignments online with people asking "what reasons can I give to re...") | ||||
4 January 2025
| 05:36 | Exploit markets diffhist +975 Robertsdotpm talk contribs | ||||
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04:23 | Hashcash for proving set membership 3 changes history +349 [Robertsdotpm (3×)] | |||
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04:23 (cur | prev) +22 Robertsdotpm talk contribs (→Introduction) | ||||
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04:04 (cur | prev) −11 Robertsdotpm talk contribs (→Author commentary) | ||||
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04:04 (cur | prev) +338 Robertsdotpm talk contribs Tag: Visual edit | ||||
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04:22 | Timechain 4 changes history +853 [Robertsdotpm (4×)] | |||
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04:22 (cur | prev) −345 Robertsdotpm talk contribs | ||||
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04:20 (cur | prev) +991 Robertsdotpm talk contribs | ||||
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04:18 (cur | prev) −1,041 Robertsdotpm talk contribs (→Time-lock encryption) Tag: Visual edit | ||||
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04:15 (cur | prev) +1,248 Robertsdotpm talk contribs Tag: Visual edit | ||||
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04:01 | Esim 2 changes history −18,062 [Robertsdotpm (2×)] | |||
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04:01 (cur | prev) +518 Robertsdotpm talk contribs Tag: Visual edit | ||||
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03:53 (cur | prev) −18,580 Robertsdotpm talk contribs | ||||
3 January 2025
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06:13 | Main Page 3 changes history +115 [Robertsdotpm (3×)] | |||
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06:13 (cur | prev) −716 Robertsdotpm talk contribs (→Trading systems) Tag: Visual edit | ||||
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06:12 (cur | prev) +386 Robertsdotpm talk contribs (→Philosophy) Tag: Visual edit | ||||
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06:03 (cur | prev) +445 Robertsdotpm talk contribs Tag: Visual edit | ||||
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N 05:47 | P2p mobile carriers 3 changes history +87,727 [Robertsdotpm (3×)] | |||
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05:47 (cur | prev) −312 Robertsdotpm talk contribs (→10.3. Plan B) Authentication oracles) Tag: Visual edit | ||||
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05:45 (cur | prev) −313 Robertsdotpm talk contribs (→2. How authentication is done in mobile networks) Tag: Visual edit | ||||
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05:19 (cur | prev) +88,352 Robertsdotpm talk contribs (Created page with "<span id="abstract"></span> = Abstract = A peer-to-peer marketplace for mobile plans would allow mobile service to be provided with minimal friction and lead to new innovations in the mobile system. In this post, I introduce a new protocol for sharing access to mobile plans with untrusted third-parties. The protocol uses secret contracts to share U/e/SIM credentials without revealing secrets to a third-party. Due to the way authentication is handled in the mobile syste...") | |||
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05:47 | (Upload log) [Robertsdotpm (12×)] | |||
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05:47 Robertsdotpm talk contribs uploaded File:P2p mobile carriers 8.png | ||||
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05:47 Robertsdotpm talk contribs uploaded File:P2p mobile carriers 7.png | ||||
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05:46 Robertsdotpm talk contribs uploaded File:P2p mobile carriers 6.png | ||||
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05:45 Robertsdotpm talk contribs uploaded File:P2p mobile carriers 5.png | ||||
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05:45 Robertsdotpm talk contribs uploaded File:P2p mobile carriers 4.png | ||||
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05:44 Robertsdotpm talk contribs uploaded File:P2p mobile carriers 3.png | ||||
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05:43 Robertsdotpm talk contribs uploaded File:P2p mobile carriers 2.png | ||||
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05:42 Robertsdotpm talk contribs uploaded File:P2p mobile carriers 1.gif | ||||
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05:41 Robertsdotpm talk contribs uploaded File:Timechain 2.png | ||||
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05:40 Robertsdotpm talk contribs uploaded File:Timechain 1.png | ||||
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05:38 Robertsdotpm talk contribs uploaded File:Work 2.png | ||||
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05:38 Robertsdotpm talk contribs uploaded File:Work 1.png | ||||
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N 05:41 | Timechain 3 changes history +37,699 [Robertsdotpm (3×)] | |||
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05:41 (cur | prev) −58 Robertsdotpm talk contribs (→The timechain DAC) Tag: Visual edit | ||||
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05:40 (cur | prev) −63 Robertsdotpm talk contribs (→Stitching parallel keys into a single chain with encryption) Tag: Visual edit | ||||
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05:32 (cur | prev) +37,820 Robertsdotpm talk contribs (Created page with "<span id="by-matthew-roberts-and-elías-snær-einarsson"></span> === By [http://roberts.pm Matthew Roberts] and [http://sn4t14.com Elías Snær Einarsson] === '''Update:''' April 20, 2017 - See “[http://roberts.pm/time_turner Turning back the clock on timechains - a follow-up]” for a discussion on security. Historically companies and individuals have struggled to uphold adequate security practices when it comes to the handling and storing of cryptocurrencies and th...") | |||
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N 05:39 | Work 3 changes history +17,821 [Robertsdotpm (3×)] | |||
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05:39 (cur | prev) −48 Robertsdotpm talk contribs (→h.h) Tag: Visual edit | ||||
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05:38 (cur | prev) −48 Robertsdotpm talk contribs (→Pyp2p) Tag: Visual edit | ||||
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05:33 (cur | prev) +17,917 Robertsdotpm talk contribs (Created page with "The type of work that I do can be divided into two main categories: # Proof-of-concepts (PoCs) and # Production projects When I’m working on a proof-of-concept the goal is simply to create a system that demonstrates a certain idea is possible. Usually this will be in the context of working on an idea that hasn’t been tried before or demonstrates that a solution to a problem is possible. For a proof-of-concept that is all about novelty: the result of the work is far...") | |||
| N 05:37 | Flood control diffhist +1,474 Robertsdotpm talk contribs (Created page with "<span id="captchas"></span> = Captchas = The Internet has a big frigging problem. It can’t seem to tell the difference between person and machine. I’m going to jump right in and say that ‘captchas’ are NOT the answer. I repeat: captchas are not the answer. Go ahead and implement them if you want. Your users will hate you. I will hate you. Your family and extended family will hate you. Nobody likes having to fill in barely legible symbols to ‘prove’ that they...") | ||||
| N 05:34 | Zk exchange diffhist +8,441 Robertsdotpm talk contribs (Created page with "'''7/12/2017: '''The protocol is flawed and contains a black mail risk. The other side cannot claim a refund without knowledge of the secret so even if the TXIDs can be validated with ZK-proofs the scheme still doesn’t work. I guess its back to the drawing board with this idea. '''Edit 5/9/2016: '''I’ve updated the scheme. I’ll update it again if I get time to think of a way to avoid using timelock encryption for the refunds since that will make it more secure. Al...") | ||||
| N 05:33 | Trust diffhist +3,033 Robertsdotpm talk contribs (Created page with "If one were to control a “funded” private key and agree to run a program that controlled the release of that private key, there would be nothing to stop the owner from failing to run that program. Some people aren’t honest and would seek to disrupt the process. And yet: if you were to repeat this same experiment at scale some people would still stay honest. Why is that? Well, not everyone is unethical (like the people in Japan who routinely return wallets with thei...") | ||||
| N 05:31 | Thoughts on blockchain scalability diffhist +8,889 Robertsdotpm talk contribs (Created page with "After reading many papers on blockchain scalability over the years, I am starting to see the painful truth that none of these systems can be scaled. For years I thought that some genius researcher would find a way to do it, and we would get blockchains with on-chain Visa scalability with the same security properties as Bitcoin… but that just hasn’t happened. Here’s why that is currently impossible and maybe a path forwards… <span id="the-consensus-basket"></spa...") | ||||
| N 05:31 | Tech jobs diffhist +6,050 Robertsdotpm talk contribs (Created page with "<span id="chief-painting-officer"></span> = Chief Painting Officer = '''Company Inc.''' We’re amazing. We synergise business synergy leading to unique enterprise advantages. There’s at least 10 different ways to build market value and promote market goodness. We help to provide B2B for our DevOps customers leading to an innovation-first culture across our divisions. [At least 10,000 more words here] Incredible. Powerful. Adjusted. Flow charts. How do we know? We...") | ||||
| N 05:29 | Synthetix diffhist +24,201 Robertsdotpm talk contribs (Created page with "Sythetix Exchange is a sophisticated Ethereum smart contract that allows investors to gain exposure to financial instruments without having to own the underlying asset. The main currencies it supports are it’s own native stable coin (sUSD) and Ether. Instruments that are bought in Synthetix are called ‘synthetic assets.’ If you come from a financial background you may have heard the term synthetic asset before and be tempted to think of these assets as equivalent....") | ||||
| N 05:28 | Survivability diffhist +1,184 Robertsdotpm talk contribs (Created page with "Survivability of an organism refers to its ability to survive in a worst case scenario. Any animal that has been caged or raised in captivity has had its survivability reduced. A caged animal cannot survive in the wild as well as a non-caged animal because its survival instincts have been altered (and often even its ability to reproduce has been adversely affected.) An ICO-token is like a caged animal, removed from any cryptoeconomic context. In the cryptoeconomic wilde...") | ||||
| N 05:28 | Self improving programs diffhist +6,068 Robertsdotpm talk contribs (Created page with "Imagine for a moment that you wanted to pay someone to improve the speed of your software. How would you do it? If you’re like most software companies then you’ll mostly likely hire someone to do the job. This means spending time to find the right person you want, interviewing them, interviewing someone else if they’re not right… until hopefully you find the right person… well maybe. There’s still no guarantee that paying them will lead to any improvements t...") | ||||
| N 05:24 | Security coin diffhist +2,296 Robertsdotpm talk contribs (Created page with "Here’s another idea for a cryptocurrency - a coin that rewards people for the practices they use to secure their cryptocurrencies on other blockchains. This can all be done without trust because many aspects of cryptocurrency security already depend on cryptographic proof. A brief list of things that a cryptocurrency like this might check for includes: * N factor auth and [https://trezor.io/ hardware devices] used for multi-sig signing. * [http://hackingdistributed.c...") | ||||
| N 05:23 | Rand diffhist +2,207 Robertsdotpm talk contribs (Created page with "I WAS WRONG AND STUPIDLY SO. Okay, so I get obsessed with concepts easily. I admit that now. In 2021, I had the idea for an algorithm to ‘compress random data’ - and I spent about a year working on it. I literally built a super computer in my lounge room [for this algorithm.] I had additional ‘circuits’ installed in my house to run the super computer. The noise of starting the machine (which was in fact an old Dell m1000e chassis stuffed to the brim with high-c...") | ||||
| N 05:21 | Permissioned resource coins diffhist +18,879 Robertsdotpm talk contribs (Created page with "<span id="the-problem-with-resource-coins"></span> == The problem with resource coins == Resource coins like Storj and Filecoin are systems that let anyone contribute their spare computational resources in exchange for payment. By using Storj, a person can lease out their extra hard drive space to other people and receive Storjcoins in return (a kind of special “utility token” in quotes…) The idea is very cool, but functionally it has problems. The most significa...") | ||||
| N 05:20 | Pay for private keys diffhist +9,845 Robertsdotpm talk contribs (Created page with "A couple of years back I was working on a [http://roberts.pm/atomic_cloud_storage smart contract in Bitcoin that implemented pay for private key contracts]. The idea was that you can setup a contract to pay someone for releasing the details that allow a particular ECDSA Bitcoin private key to be extracted and payment is obviously conditional on the solution being correct. In Bitcoin this is really damn complicated for a number of reasons. The first reason is that transa...") | ||||
| N 05:18 | P2pd diffhist +14,800 Robertsdotpm talk contribs (Created page with "Last year I started work on a new async networking library for Python. I’d never written any ‘async’ code before and wasn’t sure how hard it would be. As it turns out: Python’s async library is quite good – but there’s still room for improvement in my opinion. In this post I’m going to talk about async networking in Python. The features I like and the ones I don’t. Then I’ll talk about the library I created to try improve networking in Python. <span...") | ||||
| N 05:15 | Kidney swaps diffhist +10,368 Robertsdotpm talk contribs (Created page with "'''Update 26 May 2017:''' the 3 of 6 multi-sig scheme has an obvious race condition. This problem can be fixed by using a 4 of 7 scheme that looks like future, future, y1, xy, current, x1, and x2 public keys where xy becomes a special key with new consensus rules based on homomorphic secret sharing (will define this in more detail tomorrow.) 4 of 8 might also work where the keys would be future1, future2, y1, y2, current1, x1, x2, x3 but I’ll need to work out how to re...") | ||||
| N 05:15 | Ico crapcoin checklist diffhist +11,805 Robertsdotpm talk contribs (Created page with "# Does the coin reward users for contributing resources towards the creation of a shared service that will benefit all users? # Can the resources contributed by users be verified by anyone? # Does the service always fall within an expected range of operation? # Is the coin new and no other coin offers the same service? # Is it impossible to substitute the use of the coin for another? # Does the business model for the coin make sense? # Does the team behind the coin have...") | ||||