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Interop 2025: A Year of Convergence

https://webkit.org/blog/17808/interop-2025-review/
1•ksec•8m ago•0 comments

JobArena – Human Intuition vs. Artificial Intelligence

https://www.jobarena.ai/
1•84634E1A607A•12m ago•0 comments

Concept Artists Say Generative AI References Only Make Their Jobs Harder

https://thisweekinvideogames.com/feature/concept-artists-in-games-say-generative-ai-references-on...
1•KittenInABox•16m ago•0 comments

Show HN: PaySentry – Open-source control plane for AI agent payments

https://github.com/mkmkkkkk/paysentry
1•mkyang•18m ago•0 comments

Show HN: Moli P2P – An ephemeral, serverless image gallery (Rust and WebRTC)

https://moli-green.is/
1•ShinyaKoyano•27m ago•0 comments

The Crumbling Workflow Moat: Aggregation Theory's Final Chapter

https://twitter.com/nicbstme/status/2019149771706102022
1•SubiculumCode•31m ago•0 comments

Pax Historia – User and AI powered gaming platform

https://www.ycombinator.com/launches/PMu-pax-historia-user-ai-powered-gaming-platform
2•Osiris30•32m ago•0 comments

Show HN: I built a RAG engine to search Singaporean laws

https://github.com/adityaprasad-sudo/Explore-Singapore
1•ambitious_potat•38m ago•0 comments

Scams, Fraud, and Fake Apps: How to Protect Your Money in a Mobile-First Economy

https://blog.afrowallet.co/en_GB/tiers-app/scams-fraud-and-fake-apps-in-africa
1•jonatask•38m ago•0 comments

Porting Doom to My WebAssembly VM

https://irreducible.io/blog/porting-doom-to-wasm/
1•irreducible•39m ago•0 comments

Cognitive Style and Visual Attention in Multimodal Museum Exhibitions

https://www.mdpi.com/2075-5309/15/16/2968
1•rbanffy•40m ago•0 comments

Full-Blown Cross-Assembler in a Bash Script

https://hackaday.com/2026/02/06/full-blown-cross-assembler-in-a-bash-script/
1•grajmanu•45m ago•0 comments

Logic Puzzles: Why the Liar Is the Helpful One

https://blog.szczepan.org/blog/knights-and-knaves/
1•wasabi991011•57m ago•0 comments

Optical Combs Help Radio Telescopes Work Together

https://hackaday.com/2026/02/03/optical-combs-help-radio-telescopes-work-together/
2•toomuchtodo•1h ago•1 comments

Show HN: Myanon – fast, deterministic MySQL dump anonymizer

https://github.com/ppomes/myanon
1•pierrepomes•1h ago•0 comments

The Tao of Programming

http://www.canonical.org/~kragen/tao-of-programming.html
2•alexjplant•1h ago•0 comments

Forcing Rust: How Big Tech Lobbied the Government into a Language Mandate

https://medium.com/@ognian.milanov/forcing-rust-how-big-tech-lobbied-the-government-into-a-langua...
3•akagusu•1h ago•0 comments

PanelBench: We evaluated Cursor's Visual Editor on 89 test cases. 43 fail

https://www.tryinspector.com/blog/code-first-design-tools
2•quentinrl•1h ago•2 comments

Can You Draw Every Flag in PowerPoint? (Part 2) [video]

https://www.youtube.com/watch?v=BztF7MODsKI
1•fgclue•1h ago•0 comments

Show HN: MCP-baepsae – MCP server for iOS Simulator automation

https://github.com/oozoofrog/mcp-baepsae
1•oozoofrog•1h ago•0 comments

Make Trust Irrelevant: A Gamer's Take on Agentic AI Safety

https://github.com/Deso-PK/make-trust-irrelevant
7•DesoPK•1h ago•4 comments

Show HN: Sem – Semantic diffs and patches for Git

https://ataraxy-labs.github.io/sem/
1•rs545837•1h ago•1 comments

Hello world does not compile

https://github.com/anthropics/claudes-c-compiler/issues/1
35•mfiguiere•1h ago•20 comments

Show HN: ZigZag – A Bubble Tea-Inspired TUI Framework for Zig

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3•meszmate•1h ago•0 comments

Metaphor+Metonymy: "To love that well which thou must leave ere long"(Sonnet73)

https://www.huckgutman.com/blog-1/shakespeare-sonnet-73
1•gsf_emergency_6•1h ago•0 comments

Show HN: Django N+1 Queries Checker

https://github.com/richardhapb/django-check
1•richardhapb•1h ago•1 comments

Emacs-tramp-RPC: High-performance TRAMP back end using JSON-RPC instead of shell

https://github.com/ArthurHeymans/emacs-tramp-rpc
1•todsacerdoti•1h ago•0 comments

Protocol Validation with Affine MPST in Rust

https://hibanaworks.dev
1•o8vm•2h ago•1 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
5•gmays•2h ago•1 comments

Show HN: Zest – A hands-on simulator for Staff+ system design scenarios

https://staff-engineering-simulator-880284904082.us-west1.run.app/
1•chanip0114•2h ago•1 comments
Open in hackernews

RFC 9804: Simple Public Key Infrastructure (SPKI) S-Expressions

https://datatracker.ietf.org/doc/rfc9804/
2•eadmund•7mo ago

Comments

eadmund•7mo ago
After 29 years, Rivest’s S-expression draft is an RFC.

They are a straightforward, easy-to-parse S-expression format whose canonical representation is useful for cryptography. They are suitable as a general replacement for JSON, XML, HTML, ASN.1 and more.

eadmund•7mo ago
This JSON (taken from https://www.w3schools.com/js/js_json_intro.asp):

    {"name":"John", "age":30, "car":null}
could be this S-expression:

    ((name John)
     (age 30)
     (car ()))
The canonical representation (suitable for cryptographic hashing) would be ((4:name4:John)(3:age2:30)(3:car())).
eadmund•7mo ago
This XML (from https://www.w3schools.com/xml/note.xml):

    <note>
      <to>Tove</to>
      <from>Jani</from>
      <heading>Reminder</heading>
      <body>Don't forget me this weekend!</body>
    </note>
could be this S-expression:

    (note
     (to Tove)
     (from Jani)
     (heading Reminder)
     (body "Don't forget me this weekend"))
But if every note must have a body, this might make even more sense:

    (note
     (to Tove)
     (from Jani)
     (heading Reminder)
     "Don't forget me this weekend")
eadmund•7mo ago
The DER-encoded ASN.1 byte sequence Base64-encoded to MBMCAQUWDkFueWJvZHkgdGhlcmU/ could be represented as:

    ((tracking-number 5)
     (question "Anybody there?"))
While we are all familiar with opaque X.509 certificates such as (from https://www.fm4dd.com/openssl/source/PEM/certs/512b-rsa-exam...):

    -----BEGIN CERTIFICATE-----
    MIICEjCCAXsCAg36MA0GCSqGSIb3DQEBBQUAMIGbMQswCQYDVQQGEwJKUDEOMAwG
    A1UECBMFVG9reW8xEDAOBgNVBAcTB0NodW8ta3UxETAPBgNVBAoTCEZyYW5rNERE
    MRgwFgYDVQQLEw9XZWJDZXJ0IFN1cHBvcnQxGDAWBgNVBAMTD0ZyYW5rNEREIFdl
    YiBDQTEjMCEGCSqGSIb3DQEJARYUc3VwcG9ydEBmcmFuazRkZC5jb20wHhcNMTIw
    ODIyMDUyNjU0WhcNMTcwODIxMDUyNjU0WjBKMQswCQYDVQQGEwJKUDEOMAwGA1UE
    CAwFVG9reW8xETAPBgNVBAoMCEZyYW5rNEREMRgwFgYDVQQDDA93d3cuZXhhbXBs
    ZS5jb20wXDANBgkqhkiG9w0BAQEFAANLADBIAkEAm/xmkHmEQrurE/0re/jeFRLl
    8ZPjBop7uLHhnia7lQG/5zDtZIUC3RVpqDSwBuw/NTweGyuP+o8AG98HxqxTBwID
    AQABMA0GCSqGSIb3DQEBBQUAA4GBABS2TLuBeTPmcaTaUW/LCB2NYOy8GMdzR1mx
    8iBIu2H6/E2tiY3RIevV2OW61qY2/XRQg7YPxx3ffeUugX9F4J/iPnnu1zAxxyBy
    2VguKv4SWjRFoRkIfIlHX0qVviMhSlNy2ioFLy7JcPZb+v3ftDGywUqcBiVDoea0
    Hn+GmxZA
    -----END CERTIFICATE-----
an SPKI certificate might be:

    (sequence
        (public-key
         (rsa-pkcs1-md5
          (e #11#)
          (n
           |ALNdAXftavTBG2zHV7BEV59gntNlxtJYqfWIi2kTcFIgIPSjKlHleyi9s
           5dDcQbVNMzjRjF+z8TrICEn9Msy0vXB00WYRtw/7aH2WAZx+x8erOWR+yn
           1CTRLS/68IWB6Wc1x8hiPycMbiICAbSYjHC/ghq2mwCZO7VQXJENzYr45|)))
        (do hash md5)
        (cert
         (issuer (hash md5 |+gbUgUltGysNgewRwu/3hQ==|))
         (subject
          (keyholder (hash md5 |+gbUgUltGysNgewRwu/3hQ==|)))
         (tag
          (* set
           (name "Carl M. Ellison")
           (street "207 Grindall St.")
           (city "Baltimore MD")
           (zip "21230-4103")))
         (not-after "1998-04-15_00:00:00"))
        (signature
         (hash md5 |54LeOBILOUpskE5xRTSmmA==|)
         (hash md5 |+gbUgUltGysNgewRwu/3hQ==|)
         |HU6ptoaEd7v4rTKBiRrpJBqDKWX9fBfLY/MeHyJRryS8iA34+nixf+8Yh/
         buBin9xgcu1lIZ3Gu9UPLnu5bSbiJGDXwKlOuhTRG+lolZWHaAd5YnqmV9h
         Khws7UM4KoenAhfouKshc8Wgb3RmMepi6t80Arcc6vIuAF4PCP+zxc=|)))
Note that this is not a translation of the X.509 certificate above, though — I pulled it from <https://datatracker.ietf.org/doc/html/draft-ietf-spki-cert-e...>. Note that this is a very 90s example: MD5 and a bespoke data format instead of SHA-2 and ISO 8601.

I think it’s clear that an SPKI certificate is much, much more readable.