Fluffy – dead simple file authenticity with domain-linked signatures

Hacker News

yooo wsg HN ppl. was working on an application on behalf of a government org and they asked me to send in a letter with the org's letterhead as proof we are who we say we are. i thought that was dumb especially in the year of our lord 2025. so i prototyped this in like 4 hours. it's called fluffy: you generate a keypair, put the public key on your domain's DNS TXT record, and you can sign files with your private key + enter in a unique code. (Like pidgon.com>hr/23) now when the receiver wants to verify the file, they upload it, enter the code and fluffy verifies if its legit. core is dead simple, it's literally ed25519 and three functions, there's no create account thing for now and it's all free bc i store almost nothing (except the signature mapping, which expires in 30 days, and some basic org verification) that's about it. would love any suggestions and feedback (esp on if you think its too simple lol). open to feedback here or if you want to chat directly, hmu at mihir[at]pidgon[dot].com!

Visit product View on Hacker NewsApr 27, 2025

Share card

Actual performance

2points

Did not reach leaderboard

Launch Intel predictions

Analyze your own launch →

Indie HackersFits the IH revenue-focused audience · Missing: supports, reddit linkedin, podcasting

71%71% predicted probability of success on Indie Hackers, based on ML models trained on real launch data.

best fitHighest predicted score across all platforms for this description.

Product HuntUnlikely to reach the leaderboard · Strong signals: code, open · Missing: mac, agents, macos

42%42% predicted probability of success on Product Hunt, based on ML models trained on real launch data.

AppSumoMay struggle as an AppSumo deal · Missing: plus, platform, intuitive

42%42% predicted probability of success on AppSumo, based on ML models trained on real launch data.

Hacker NewsMay not resonate with HN audience · Strong signals: io · Missing: https docs, excited, just released

38%38% predicted probability of success on Hacker News, based on ML models trained on real launch data.

nativeThis product was originally launched on this platform.

TrustMRRLess likely to generate early MRR · Missing: mobile apps, ios, personal

34%34% predicted probability of success on TrustMRR, based on ML models trained on real launch data.

Acquire.comPre-revenue stage for this audience · Missing: arr, mrr, revenue

14%14% predicted probability of success on Acquire.com, based on ML models trained on real launch data.

BetaListMay not resonate with beta-testers · Strong signals: chat · Missing: web3, crypto, cryptocurrency

1%1% predicted probability of success on BetaList, based on ML models trained on real launch data.

Correct prediction on native model

Similar products

Goconf – Dead simple Go configuration file library53%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Goconf – Dead simple Go configuration file library

Hacker News2

Inject Me Timbers – Dead simple dependency injection28%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Inject Me Timbers – Dead simple dependency injection

Hacker News1

SecureSigner32%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

E-signatures made simple

Product Hunt+1

Dead-simple file lock implementation in C#46%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Dead-simple file lock implementation in C#

Hacker News2

Filepicker.io - dead simple file uploads54%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Filepicker.io - dead simple file uploads

Hacker News193

Sales pitching made dead simple41%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Sales pitching made dead simple

Hacker News8

SignRequest – Electronic Signatures for everyone41%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

SignRequest – Electronic Signatures for everyone

Hacker News42

Carl Jung's Seven Sermons to the Dead55%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Carl Jung's Seven Sermons to the Dead

Hacker News1

I resurrected one of the top dead Show HNs53%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

I resurrected one of the top dead Show HNs

Hacker News8

I resurrected one of the top dead Show HNs53%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

I resurrected one of the top dead Show HNs

Hacker News5

Browse all products Analyze your launch