Top all-time · #1943
Input
Company blog · iohk.io/blogprogrammingsecurity
Input is the company blog at iohk.io, writing about programming and security. Since 2016, 39 different Hacker News readers have linked it 57 times, most often “Cardano: a Blockchain platform written in Haskell”. It is still writing: the last post was on 2026-10-22, and you can follow it by feed.
Rarely recommended · 3 of 38 sampled comments recommend it?
Why HN links it
HN readers mention Input Output mainly for Cardano research papers, a Nix write-up and team pages, and many comments are job-board posts. Linked pages cover blockchain research, Haskell and hiring.
Summarised by Claude from a sample of 38 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Input Output Group is the world's leading blockchain research and engineering company
Most-linked posts?
- /team/4 people · 5 mentions · first linked 2017-12-01
- /en/research/library/4 people · 4 mentions · first linked 2020-08-22
- Cardano: a Blockchain platform written in Haskell3 people · 3 mentions · first linked 2017-03-07
- /en/blog/posts/2021/09/10/concurrency-and-all-that-cardano-smart-contracts-and-the-eutxo-model/2 people · 2 mentions · first linked 2021-11-29
- Ouroboros: A Provably Secure Proof-Of-Stake Blockchain Protocol2 people · 2 mentions · first linked 2017-10-30
- /2 people · 2 mentions · first linked 2021-10-01
- /en/team/2 people · 2 mentions · first linked 2020-07-30
What Hacker News says?
IOG | https://iohk.io | REMOTE | Full-time | Backend Engineer We are hiring another backend engineer for the Atala PRISM team, the project is related to decentralized identities and verifiable credentials, - Watch a demo recorded last week at https://www.youtube.com/watch?v=wemcgPA3IPQ , or, try our demo at https://atalaprism.io - Fully remote position in any timezone, our team is currently based in Australia, Latin…
Comment linking /
on “Ask HN: Who is hiring? (February 2021)”Submitted Proof Refinement Basics as a story · 52 points
HN discussion> So PayPal, WorldRemit, M-Pesa, Paytm and Transferwise doesn't fix this already? These are by and large wrappers around the existing systems; they "fix" it the same way things like Lightning fix Bitcoin's transaction speed (for example): by offloading off the main network. > 13 years and still no progress. Credit cards have had a 20-or-so year head start, and they only recently (i.e. around the same time as the adv…
Comment linking /en/blog/posts/2021/09/17/hydra-cardano-s-solution-for-ultimate-scalability/
on “Mozilla Foundation pausing cryptocurrency donations”Submitted Combining Agile and Formal Methods as a story · 3 points
HN discussionYou made me look up the IOHK (Cardano developers) team page again, it's hilarious: https://iohk.io/en/team/
Comment linking /en/team/
on “The Haskell Elephant in the Room”Submitted Ouroboros: A Provably Secure Proof-Of-Stake Blockchain Protocol as a story · 3 points
HN discussionThe Cardano blockchain system is heavily based on Haskel. It is one of the largest ecosystems in this space and is growing rapidly. The author can try to find work with IOHK ( https://iohk.io/ ), the Cardano foundation ( https://cardano.org/ ) or one of several other companies doing commercial or research work around Cardano.
Comment linking /
on “I would like a job writing Haskell”Submitted Ghosts of departed proofs. (functional pearl) (2018) as a story · 2 points
HN discussionIOHK | Scala Developer | Remote | Full-time | https://iohk.io We are a fully remote company working mainly on blockchain and cryptocurrencies, we have lots of researchers and have a formal methods team, our main programming languages are Haskell, Scala, and Rust, this position is Scala specific. Feel free to apply directly, or contact me (email on my profile) if you have any question. Job Description: https://iohk.i…
Comment linking /en/careers/fk0377n/software-engineer-scala/
on “Ask HN: Who is hiring? (November 2019)”Submitted Ghosts of Departed Proofs as a story · 2 points
HN discussionI work for a company currently hiring a data engineer (100% remote): https://iohk.io/en/careers/fk0qqod/data-engineer/#main-conte...
Comment linking /en/careers/fk0qqod/data-engineer/
on “Ask HN: Who has been laid off?”Submitted Cardano: a Blockchain platform written in Haskell as a story · 2 points
HN discussionIOHK | Scala Developer | Remote | Full-time | https://iohk.io We are a fully remote company working mainly on blockchain and cryptocurrencies, we have lots of researchers and have a formal methods team, our main programming languages are Haskell, Scala, and Rust, this position is Scala specific. Feel free to apply directly, or contact me (email on my profile) if you have any question. Job Description: https://iohk.i…
Comment linking /en/careers/fk0377n/software-engineer-scala/
on “Ask HN: Who is hiring? (October 2019)”Submitted Bidirectional Proof Refinement as a story · 2 points
HN discussionInput Output (Marlowe) | https://iohk.io/ | International | Full-Time | Only REMOTE The company builds high-assurance blockchain infrastructure solutions for public, private sector and government clients. It is also the driving force behind Cardano blockchain platform. Marlowe: https://marlowe-finance.io Marlowe is a DSL for financial contracts that will run on Cardano. Marlowe contracts can be statically analysed a…
Comment linking /
on “Ask HN: Who is hiring? (October 2021)”Submitted Simple property-based tests for Plutus validators as a story · 1 points
HN discussionI'm really surprised by how uneducated most of HN are about blockchain. This means we're still early. Few big things that are coming out of blockchain; 1) ICO - a way to raise money in a distributed manner outside the traditional financial system (think Banks and VCs). 2) Defi - a way to borrow and lend (and much more) outside the traditional financial system. One example, Banks get as much as 16-20% return on your…
Comment linking /en/research/library/
on “Blockchain, the Solution for Almost Nothing”Submitted Mining in Logarithmic Space as a story · 1 points
HN discussionTake a look at cardano. They have implemented a blockchain that is backed by peer reviewed [1] research, the article here talks about how the blockchain takes a huge amount of resources to run. The people at the cardano project has managed to enable people to even run a full block producing node on something as small as a pi[2][3]. So far from all the blockchain projects I am interested in, this is my favorite one s…
Comment linking /en/research/library/
on “Blockchain, the Solution for Almost Nothing”Submitted Cascading Disruption:Interactive, visual and auditory exploration of Bitcoin as a story · 1 points
HN discussionIOHK who is behind Cardano does quite a lot of scentific research and formalized and developed innovative concepts: https://iohk.io/en/research/library/ . It's still very experimental and yes, there are no clear applications yet, but there is some genuine research being made.
Comment linking /en/research/library/
on “Ethereum Isn't Fun Anymore”Submitted A solution for scalable randomness as a story · 1 points
HN discussionThere's a good write up of how Cardano, the blockchain project, uses Nix. Not surprising, given that Nix was a academic research project, and Cardano has a good network of academic researchers working to solve hard blockchain problems. https://iohk.io/en/blog/posts/2019/02/06/how-we-use-nix-at-i...
Comment linking /en/blog/posts/2019/02/06/how-we-use-nix-at-iohk/
on “My experience with NixOS”Submitted How Cardano's Transaction Fees Work as a story · 1 points
HN discussionYou're off by probably an order of magnitude. You can absolutely scale this organization to 100+ engineers. I've worked at a company with ~30 Haskell developers and I was involved in hiring most of them without lowering our hiring bar. If we really needed more it would have been quite easy to lower the bar a little and increase the numbers significantly. Here's another example of a company that has a large Haskell t…
Comment linking /en/team/
on “ Haskell is our first choice for building production software systems”Submitted IODB Storage Engine as a story · 1 points
HN discussionInput Output | Senior Bitcoin & Rust Engineers, Fullstack/DevOps, Product, BD, Marketing | Full-Time | Remote (Global) | https://iohk.io/en/career We're a new venture inside IOHK building the future of Bitcoin DeFi. Our mission is to unlock Bitcoin's economic potential by building a secure, trust-minimized protocol that brings more utility to native BTC. Tech Stack: Rust, Bitcoin, BitVM (X,1,2,3, and beyond), RISC-V…
Comment linking /en/career
on “Ask HN: Who is hiring? (October 2025)”Submitted IODB Storage Engine (for Blockchain Applications) as a story · 1 points
HN discussion> Why do we do this, still? Is it not irresponsible? One reason is security - if cryptography isn't done in constant time then there is the potential for timing attacks. This is why BitCoinJ ditched BouncyCastle for their own JNI wrapper around BitCoin's libsecp256k1. There is a rust client for Ethereum, called Parity - they do FFI calls to libsecp256k1. Similarly rust-crypto vendors most of its crypto in C that it…
Comment linking /projects/cardano/
on “Zcoin implementation bug enabled attacker to create over 500K Zcoins”Luckily there are some Blockchain/Crypto currency startups that do understand the value of using something like Haskell. See https://iohk.io/projects/cardano/
Comment linking /projects/cardano/
on “Zcoin implementation bug enabled attacker to create over 500K Zcoins”
