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Ask HN: What are new applications that can be built on blockchains?
i am not as interested in the price volatility of this asset class more inspired by the crypto anarchism that they enable and new trustless, non custodial and truly decentralized apps that can be built on top of modern blockchains
- fratlas 9y agoGoogle golem dapps, very interesting use case.
- komaromy 9y agohttps://medium.com/@AugurProject/augur-master-plan-42dda65a3e3d https://medium.com/@AugurProject/augur-master-plan-42dda65a3...
- noloblo 9y agoThanks
- DarrenMills 9y agoCheck out the top coins here: https://coinmarketcap.com https://coinmarketcap.com From there you can click on any coin and get a link back to each project's website. Exploring those should cover a good chunk of the use-cases that are popular right now. That's a good start.
- noloblo 9y agoI'm not looking for the use cases of the coins I'm looking for applications that can be built on top of the Blockchain enabled by the new cryptographic go i'm not looking for the use cases of the Coins I'm looking for applications that can be built on top of the Blockchain enabled by the new cryptographic coins - what are the non-obvious applications
- endgame 9y agoSpelling and grammar checkers.
- RexetBlell 9y agoI think it makes a lot of sense to build a DNS system using contacts. Names can be auctioned off and given automatically to the highest bidder. It is also possible to set up a contract where you could trustlessly sell names. "Send $200 to an address and you will get the name". There is an auction like this in progress already, and you can participate now if you like http://ens.domains http://ens.domains You could do even more interesting things trustlessly. For example say, you own a valuable domain. You could borrow money and use the domain as collateral. If you do pay back, or stop making monthly payments the domain is automatically and trustlessly transferred to the lender. Or it can be put up for a trustless public auction with the proceeds going to lender to repay the loan and the rest to you, the ex-owner of the domain who failed to pay back his loan.
- bluebluetimes 9y agoHow would ETH name service Domains be integrated with the browser or this is supposed to work only in onion Tor and Mist browsers Update fixed formatting
- a_t48 9y agoFYI- while cool looking, wrapping your entire multiline comment in code tags makes it fairly unreadable on mobile (only four words show at a time).
- RexetBlell 9y agoThere is a Chrome extension that does this for you for IP addresses (I think). All ethereum wallets are also implementing support. You can make your Ethereum domain name point to anything you want. So instead of sending your transaction to a long hex string, you can send it to "johndoe.eth".
- noloblo 9y agoThanks but chrome and electron-based applications really heat the Mac, get the fan running all the time and bringing it to a halt. Are there projects to build native cocoa apps on top of eth/btc much like aquamacs for emacs
- laktek 9y agoSome obvious ones: - Cloud commodity (storage, computing - think of decentralized AWS) - Identity & reputation systems (think of global credit rating & KYC) - One to one services cutting the middleman (consultation, tutoring, renting) - Autonomous agents self negotiating contracts (common example is your car paying for its parking)
- sanderjd 9y agoSorry for being a noob, but how is something like "decentralized AWS" enabled by blockchain technology?
- laktek 9y agoStill it's early days, but watch these talks on IPFS[1] and Golem[2] to get a basic idea. [1] https://www.youtube.com/watch?v=HUVmypx9HGI https://www.youtube.com/watch?v=HUVmypx9HGI [2] https://www.youtube.com/watch?v=DGinj5K3tcI https://www.youtube.com/watch?v=DGinj5K3tcI
- mschuster91 9y agoYou can do immediate payment - and with this, hard spending limits.
- lumannnn 9y agoCheck out https://golem.network https://golem.network or http://sia.tech http://sia.tech You rent out your unused CPU (Golem) or unused disk space (Sia) and get automatically rewarded
- ashnyc 9y agoHow about a simple clock in clock out system for payroll. here is a directory of dapps https://dapps.ethercasts.com/ https://dapps.ethercasts.com/
- sanderjd 9y agoHonest question: what are the deficiencies of current clock-in / clock-out systems that blockchain technology might help solve?
- mschuster91 9y agoNot GP, but current systems usually are not manipulation proof. Using a blockchain makes post-clock-out modifications visible immediately.
- sanderjd 9y agoSure, but what I'm curious about is: is that a real problem in practice that organizations have been fighting, or is it just a problem in theory? If I told an organization, "I've built a blockchain based time tracking system that is 100% impossible to be tampered with", would they say, "oh thank goodness this is a huge problem for us!", or would they say, "oh that's sort of neat but our tampering related loss is already within acceptable bounds"? My sense is that it would be the latter.
- ashnyc 9y agoIt is not only about being impossible being tampered with. It is about trusting the system. Since we trust the blockchain with 100 + billion dollars. trusting it for a time sheet system should not be that hard
- sanderjd 9y agoSure, but I think you're missing my point. Is this a problem that really needs a solution or is it a solution in search of a problem? Are time tracking systems not trustworthy enough already? Perhaps I'm just ignorant, but I've never heard of this issue, and it just sounds like the sort of thing that sounds like a problem to techies, but isn't really a problem in practice.
- bluebluetimes 9y agoTrust less Decentralized exchange Open alternative to Uber, lyft and Airbnb
- sanderjd 9y agoIsn't the trust in those services more at the physical world level than the technical level?
- syntaticSugar 9y agoYes, but the idea is now we can remove the custodians out of the mix. Why pay airbnb? The networking, booking, hopefully identity verification can all be done p2p
- RexetBlell 9y agoI think a big problem with these services is that your rating belongs to Uber instead of the user. It would be nice to put your reputation from all the services you use (Uber, Airbnb, reddit karma, eBay, credit rating, etc) in one central place that is not controlled by a single corporation.
- RexetBlell 9y agoThe dream it's to then be able to share a portion of your information with another party without revealing everything. For example, you can share "my credit rating is above 750 and I'm 32 years old" and nothing else. This can be accomplished with zero knowledge proofs which are going to be possible on Ethereum later this year.
- sanderjd 9y agoThanks, that makes a lot of sense. Edit: There does seem to be a bootstrapping issue though. Right now the centralized entity is basically vouching for new people until their individual reputation builds.
- strictnein 9y agoDistributed ledgers [0], if you're a Fortune 500 [1] [2] [0] https://en.wikipedia.org/wiki/Distributed_ledger https://en.wikipedia.org/wiki/Distributed_ledger [1] http://news.sap.com/sapphire-now-sap-cloud-platform-blockchain-service/ http://news.sap.com/sapphire-now-sap-cloud-platform-blockcha... [2] http://www-935.ibm.com/industries/retail/supply-chain/ http://www-935.ibm.com/industries/retail/supply-chain/ The Linux Foundation's related project: https://www.hyperledger.org/ https://www.hyperledger.org/ Turn your brain's marketing parser on before attempting to read any of this stuff.
- yithump 9y agoDemocratic Autonomous Organizations -- which are corporations whose law is created not by human organizations; the law for ricardian contracts is instead defined by a relationship between trustless consensus and formally verifiable logic. See the og tao here: http://chriseth.github.io/browser-solidity/?gist=192371538cf5e43e6dab#gist=192371538cf5e43e6dab http://chriseth.github.io/browser-solidity/?gist=192371538cf... and read about the $50 million tao debacle on wiki: https://en.wikipedia.org/wiki/The_DAO_(organization) https://en.wikipedia.org/wiki/The_DAO_(organization) more about ricardian contracts on ethereum here: http://iang.org/papers/intersection_ricardian_smart.html http://iang.org/papers/intersection_ricardian_smart.html
- erikpukinskis 9y agoWhy was the DAO abandoned? It seems like someone could just fix the bug, and run the sale again, expecting a lower valuation. The idea is still good, right? A bug shouldn't end the whole project.
- dragonwriter 9y agoThe idea was that code-as-contract was clear, unambiguous to all participants, and obviated the need for human intervention to enforce correctly.
- candiodari 9y agoYou forget to tell what happened after that. Someone someone found contract terms (relating to starting a new sub-entity to the DAO) that favored them, started transferring the eth to themselves using this method (they "probably" gained the ability to dictate how the eth would be spent after an initial period, which plenty of people are desperate to point out isn't the same as owning it). And then ... Humans intervened to have the terms enforced "correctly" (this was regarded as a hack). They even rolled back quite a few normal transactions that had nothing to do with the attack (because just like all other central banks, the ethereum company cannot risk/be bothered to figure out what transactions are about and come up with a solution that affected just the hack and nothing else) I imagine this will happen again, and again, and again. This is very clear to anyone who's done the least bit of law : humans cannot be trusted (not even by themselves) to write rules and then uphold them "under any circumstances". We must have governments and a legal system to prevent disaster. The easy tricks I see work is that humans can loan eth from others, then have multiple accounts, only one of which is subject to confiscation. Double collateralizing (pledging the same asset for multiple loans, then disappearing with the loans, recently popular in China). http://www.coindesk.com/understanding-dao-hack-journalists/ http://www.coindesk.com/understanding-dao-hack-journalists/
- elhalyn 9y agoGet rid of ticket scalping. If tickets get passed on from the buyer you pay a extra fee ( which increases with each hop ). On ticket return, a pool will be created where you can bid on -> sold tickets above the original price are going to be splitpaid to the venue and the artist / ...
- nebabyte 9y agoRequires a solution to the identity problem otherwise scalpers just sell off whatever nonce they purchase the tickets under
- elhalyn 9y agoyou are right. Just enter your full name after you hit the buy button.
- nebabyte 9y agoYou and I have very different definitions of the word "solution"
- elhalyn 9y agoIts a simple fix. The venue has to control the name on your id with your ticket name. It has to be personalized in some way and it seems reasonable to keep your "real ID" away from the blockchain account. Even though the venue can identify your wallet on entrance... so there is a small design flaw :)
- daxfohl 9y agofar more accurate click trackers
- zaogaothrowaway 9y agoPorn? So much technology seems to eventually come to making pornography <whatever>-er. How can blockchain be used here? (Okay, sure, there's the obvious crypto payments for illegal stuff; that's not at all what I'm talking about). Regular legal porn, how can blockchain add to that equation?
- afeezaziz 9y agoWe are working on electricity trade using blockchain, enabling renewable energy generator to trade with neighbours in local grid.
- noloblo 9y agoThat sounds interesting is there a link to try the prototype who is we
- pazimzadeh 9y agoVoting
- noloblo 9y agoDo you mean the elections or prediction markets
- pazimzadeh 9y agoElections
- Thobr 9y agoYou can multisignature contracts with advanced options for payment or you can gamble on predictions on future for example, both in trustless and decentralized way
- ThomPete 9y agoOne of the things about blockchain is that it has a history, that history makes it to some extent atomic. This means it can be used to turn digital assets which are normally considered infinite in that it can be copied and pasted, into scarce resources. One example could be a 2nd hand ebook market where books could actually increase in value because it's been owned by this and this person.