Btfy – a blockchain that uses weather observations
Hi HN, I built Btfy, an experimental blockchain that uses weather observations as a source of unpredictability for consensus The motivation is simple. Proof of Work generates uncertainty by performing computations. I wanted to explore whether we could obtain some of that uncertainty from the real world instead. Btfy combines weather observation data with a Verifiable Delay Function (VDF): Weather Observation Data -> VDF -> Block -> Hash Chain In the current implementation, observation data is collected from multiple locations, a VDF is computed, and the result is used to generate a block.…
Btfy – a blockchain that uses weather observations launched on August 2, 2026 with 10 votes, #1,032 of 23,274 launches that month and more than 90% of that year's launches.
In plain words
Btfy is an experimental blockchain that replaces traditional computational proof of work with real-world weather observations as a source of randomness for consensus. The system combines weather data collected from multiple locations with a Verifiable Delay Function to generate blocks in a hash chain, making it difficult to alter historical records. Designed for researchers and developers interested in alternative consensus mechanisms, this project explores whether unpredictability can be obtained from environmental data rather than computation alone.
written from the facts on this page · September 2026
From the sources
What if weather could secure a blockchain? Dawn is an experimental blockchain that uses weather observations and cryptography.
A Blockchain Secured by Weather Observations. 🦋. Contribute to kotagit75/btfy development by creating an account on GitHub.
Btfy is an experimental blockchain that explores whether weather observations can be used as a consensus beacon. By combining weather-derived beacons with Verifiable Delay Functions (VDFs), btfy investigates an alternative approach to blockchain consensus. Btfy explores whether naturally occurring unpredictability already exists in the real world. This project is intended for technological exploration and research. It is not intended to promote, advertise, or solicit any product, service, or investment. Btfy is currently a project in the technical validation phase and in active development. The API and features may change without notice. Star ⭐ this repo if you find this project promising!…from github.com
In the maker’s words, at launch
Hi HN, I built Btfy, an experimental blockchain that uses weather observations as a source of unpredictability for consensus The motivation is simple. Proof of Work generates uncertainty by performing computations. I wanted to explore whether we could obtain some of that uncertainty from the real world instead. Btfy…
Does a similar job
all alternatives →- BTbtproof - trusted timestamping on the Bitcoin blockchain2013 · btproof.com · ▲75
Find information, resources and relevant links for btproof.com. This domain may be for sale.
Klarity – Open-source tool to analyze uncertainty/entropy in LLM output2025 · github.com · ▲132We've open-sourced Klarity - a tool for analyzing uncertainty and decision-making in LLM token generation. It provides structured insights into how models choose tokens and where they show uncertainty. What Klarity does: - Real-time analysis of model uncertainty during generation - Dual analysis combining log probabilities and semantic understanding - Structured JSON output with actionable insights - Fully self-hostable with customizable analysis models The tool works by analyzing each step of text generation and returns a structured JSON: - uncertainty_points: array of {step, entropy,…
My experimental take on a decentralized ledger2015 · github.com · ▲48
Source: Show HN post ↗ · launch text quoted in part
Launched alongside, August 2026
the whole month →- TL
Life & fun · Aug 2026 · louisabraham.github.io
Clipto MCP▲655Hey HN, We recently built Clipto. It’s a tool that lets you search over terabytes of video, audio, and images on your computer, without relying on the cloud. Motivation: we probably all had this similar experience, we know a moment exists in a video or audio, but finding it takes hours scrubbing the timeline. You can send all the media to process in the cloud, but it’s slow, expensive and raises privacy concerns. So we decided to build our own on-device media search engine. How it works (high level): 1. We ingest video, audio, image; normalize formats via ffmpeg; run content analysis to…
Work · Aug 2026 · clipto.com
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io
Astute▲606Automate your B2B brand going viral, with new media creators
AI · Aug 2026 · company-app.joinastute.com