Life & fun · February 12, 2026
Double blind entropy using Drand for verifiably fair randomness
The only way to get a trust-less random value is to have it distributed and time-locked three ways, player, server and a future-entropy. In the demo above, the moment you commit (Roll-Dice) a commit with the hash of a player secret is sent to the server and the server accepts that and sends back the hash of its secret back and the "future" drand round number at which the randomness will resolve. The future used in the demo is 10 secs When the reveal happens (after drand's particular round) all the secrets are revealed and the random number is generated using…
Double blind entropy using Drand for verifiably fair randomness launched on February 12, 2026 with 21 votes, #745 of 16,627 launches that month and more than 90% of that year's launches.
In plain words
This tool generates verifiably fair random numbers using a three-way commitment system: a player secret, a server secret, and a time-locked future entropy value from Drand. Users commit to their choice by submitting a hashed secret, the server responds with its own hashed secret and a future Drand round number, and after that round concludes, all secrets are revealed to cryptographically produce a tamper-proof random result. It is designed for anyone needing trustless randomness in gaming or applications where fairness cannot depend on any single party.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
The only way to get a trust-less random value is to have it distributed and time-locked three ways, player, server and a future-entropy. In the demo above, the moment you commit (Roll-Dice) a commit with the hash of a player secret is sent to the server and the server accepts that and sends back the hash of its…
Does a similar job
all alternatives →- TDTimelock.dev – Send a secret into the future using timelock encryption2024 · timelock.dev · ▲224
This is simply a web interface built on top of the timelock encryption system posted by Cloudflare last week. https://blog.cloudflare.com/harnessing-office-chaos
Simple way to obtain pseudorandomness from CPU context switch in Go2018 · github.com · ▲34Pseudorandom generator written in Go using CPU context switch - maxamel/BitGenGo
True-Random – Generate “truly” random numbers2016 · github.com · ▲31:game_die: Generate "truly" random numbers (WARNING: NOT RANDOM!!! The "truly" is in sarcasquotes) - jaybosamiya/true-random
A tiny and platform-agnostic true random number generator for FPGA/ASIC2023 · github.com · ▲27It is based on phase noise, consumes less than 60 LUT4s/FFs and achieves up to 7.99 bits of entropy per byte. Feel free to comment if you have any questions, ideas or thoughts :)
Checking 320M passwords in milliseconds with serverless bloom filters2017 · github.com · ▲33Using serverless functions to provide an API for checking potential passwords against an enormous corpus of passwords leaked from security breaches. - jthomas/serverless-pwned-passwords
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