Some ZK way to prove that a piece of data was derived from some source, for example, proving a human fingerprint is unique identifying biometric data without showing the data itself or the person it is from and with no trusted authority.
Ask HN: What problem are you close to solving and how can we help?
161–170 of 486 posts
Re: Ask HN: What problem are you close to solving and how can we help?
#162[deleted]
Re: Ask HN: What problem are you close to solving and how can we help?
#163Stateful, exaclty once, event processing without the operational capacity to run a proper Flink cluster. This thing needs to be dead simple, pragmatic and cheap/simple to operate and update. The only stateful part in our infra at the moment is a PG database. We are going to start work on this in a weeks, so I'm looking for some insights/shortcuts/existing projects that will make our lives easier. The goals is to proc…
I've had good experiences with PQ (https://pypi.org/project/pq/). Any event that generates a notification triggers adds an entry to the queue. Worker processes get entries from the queue. The queue is stored as another table in your database whose structure and content is managed by PQ, though you can always read/write to it if you want. PQ handles the concurrency.
Re: Ask HN: What problem are you close to solving and how can we help?
#164I want to bring back old school distributed forum communities but modernise them in a way that respects attention and isn’t a notification factory. Mastodon is a pretty inspirational project but the Twitter influence shows, I miss the long form writing that was encouraged before our attention spans were eroded. Not at all close to solving it, but it’s been on my mind for a long time. Would love to hear if there are o…
I am building a project ( https://linklonk.com ) that does information discovery in a way that respects your attention. In short, when you upvote content you connect to other people upvoted that content and to feeds that posted that content. So to get your attention other users need to prove to be a good curator of content for you. I'm planning to do a "Show HN" post next week for it and would appreciate any feedback…
Really like this idea, something I've been thinking about for a while. Will join and give the tyres a kick :-)
Re: Ask HN: What problem are you close to solving and how can we help?
#165Stateful, exaclty once, event processing without the operational capacity to run a proper Flink cluster. This thing needs to be dead simple, pragmatic and cheap/simple to operate and update. The only stateful part in our infra at the moment is a PG database. We are going to start work on this in a weeks, so I'm looking for some insights/shortcuts/existing projects that will make our lives easier. The goals is to proc…
Sounds like a change data capture problem. Consider using Debezium, my team was able to use the standalone java engine to connect to a Postgres DB and stream (within the context of the Java app, not an external kafka stream) insert/update/delete events. You could filter those events and apply your notification and other logic to the filtered events.
Re: Ask HN: What problem are you close to solving and how can we help?
#166Some ZK way to prove that a piece of data was derived from some source, for example, proving a human fingerprint is unique identifying biometric data without showing the data itself or the person it is from and with no trusted authority.
Just thinking out loud here: I think it would require trusted sources (not necessarily a centralized authority) that have validate it and that you trust.
You can prove two balls are different colors to a colorblind person by having them show you two balls of X color and proving to them that you can differentiate them (watered down example), but it requires validated externalities (ex, you can see colors they can’t).
Defining the external validators is the hard part.
Re: Ask HN: What problem are you close to solving and how can we help?
#167Stateful, exaclty once, event processing without the operational capacity to run a proper Flink cluster. This thing needs to be dead simple, pragmatic and cheap/simple to operate and update. The only stateful part in our infra at the moment is a PG database. We are going to start work on this in a weeks, so I'm looking for some insights/shortcuts/existing projects that will make our lives easier. The goals is to proc…
I think you could leverage SKIP LOCKED for this - this blog post https://www.2ndquadrant.com/en/blog/what-is-select-skip-lock... explains it nicely.
Re: Ask HN: What problem are you close to solving and how can we help?
#168Earlier quoted context omitted.
I think your heart shouldn't quail at the thought of re-schemaing 5-6GB! I'm going to claim that the actual migration will be very quick.
This is an affirmation I’ve been longing to here, lol! I’ve already done the legwork, cloning to the current prod DB locally and playing around with migrations, but the fear of applying anything potentially-production breaking is scary to a dev who has never had to work on a “critical” production system!
I would recommend setting up a staging app with a copy of the production database, testing a migration script there, then running the same script on production once you're confident.
Re: Ask HN: What problem are you close to solving and how can we help?
#169adapting the Sunday variation of boyer-moore algorithm to search backwards from point
Re: Ask HN: What problem are you close to solving and how can we help?
#170I am not there yet, but I am trying to make education loan-free and based on equity. The details of the project are written here: https://loan-free-ed.neocities.org
> when that student starts generating income then a small percentage from that income is auto-deducted and distributed to everyone who was involved in that student's education.
Your idea, if implemented well, may end up being a net positive for society, but I can't help imagining a future where every child, from the moment they are born, has a biometric ID connecting them to a consortium of companies which provide their education, health care, housing, energy, internet connectivity, transport, media access, and so on.
It would be like living in a company town, being paid in company scrip, except you wouldn't notice the restrictions (as long as you kept earning). If you ever increased your income, your consortium might let you choose whether you want to upgrade your housing or your health care plan, but if you lost your job, they'd force you to take one of their choosing and downgrade your plans if it had a lower salary.
In this dystopia, all consumables from food to toilet paper would presumably be sold by Amazon, and other items like furniture and electronics would be provided as a service so that you rent them from your consortium. The only question is why people wouldn't try to undo this system through the political process, but then we might ask that about the current system.