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Commerce · alternatives · 2026

24 alternatives to 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 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… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1BT

    Find information, resources and relevant links for btproof.com. This domain may be for sale.

    2013 · btproof.com · its alternatives →

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    Lark▲117

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    We'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,…

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    2018 · github.com · its alternatives →

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    2021 · bits.monospace.live · its alternatives →

  10. 10

    Neptune is a quantum-safe layer 1 blockchain combining zk-STARKs and PoW consensus. Private by default, programmable, and built for global scale

    2014 · neptune.io · its alternatives →

  11. 11
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  13. 13LB

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    2013 · earthbit.net · its alternatives →

  14. 14
    Streams▲106

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    2024 · quicknode.com · its alternatives →

  15. 15

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  19. 19

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    2018 · github.com · its alternatives →

  20. 20

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  22. 22
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    TLDR: A small, vendor-agnostic inference loop that turns token logprobs/perplexity/entropy into an extra pass and reasoning for LLMs. - Captures logprobs/top-k during generation, computes perplexity and token-level entropy. - Triggers at most one refine when simple thresholds fire; passes a compact “uncertainty report” (uncertain tokens + top-k alts + local context) back to the model. - In our tests on technical Q&A / math / code, a small model recovered much of “reasoning” quality at ~⅓ the cost while refining ~⅓ of outputs. I kept seeing “reasoning” models behave…

    2025 · github.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →