demesisx

Lukas Aumayr presents his collaborative work on the paper 'Blink: An Optimal Proof of Proof-of-Work'.

Designing light clients for Proof-of-Work blockchains has been a foundational problem since Nakamoto's SPV construction in the Bitcoin paper. Over the years, communication was reduced from O(C) down to O(polylog(C)) in the system's lifetime C. We present Blink, the first provably secure O(1) light client that does not require a trusted setup.

https://eprint.iacr.org/2024/692 https://eprint.iacr.org/2024/692.pdf

#ergoversary #ErgoTurns5

Join Charles Hoskinson in this insightful keynote from the Tech for Impact conference in Japan, where he explores the transformative potential of blockchain technology in reshaping our economic, political, and social systems.

Charles challenges us to rethink the world we live in and explore how cryptocurrencies can realign incentives. He also emphasizes the critical need for governance in leveraging these technologies responsibly, ensuring they serve future generations.

cross-posted from: https://lemmy.dbzer0.com/post/30927140

This presentation was recorded at YOW! 2016. #GOTOcon #YOW https://yowcon.com

Rob Howard - Software Engineer at Ambiata ‪@damncabbage‬

RESOURCES https://x.com/damncabbage https://chaos.social/@buzzyrobin https://github.com/damncabbage / buzzyrobin
https://rhoward.id.au

Links http://robhoward.id.au/talks/2016/04/... https://github.com/damncabbage/ylj16-... https://github.com/damncabbage/puresc... https://www.purescript.org

ABSTRACT This talk and workshop/jam will introduce you to PureScript, a strongly-typed, Haskell-inspired programming language that compiles to JavaScript. These sessions will focus on building a small game in incremental steps, from simple functions to a web-based app, giving you a chance to try out features and libraries along the way. You should leave the session with a grasp of PureScript fundamentals, and a self-sufficiency to tackle your own projects and experiments.

RECOMMENDED BOOKS Phil Freeman • PureScript by Example • https://leanpub.com/purescript Christopher Allen & Julie Moronuki • Haskell Programming • https://lorepub.com/product/haskellbook Edsger W. Dijkstra • A Discipline of Programming • https://amzn.to/3JlwHV6 Rebecca Skinner • Effective Haskell • https://amzn.to/3SxTpwY Uberto Barbini • From Objects to Functions • https://amzn.to/4cMDOmH

I stumbled onto this episode after fantasizing about just such a technology where we could take all of the positives of the Beam and bring them to the amazing OCamL compiler. This guy Leandro is incredibly clever and articulate. I loved his use of the word “free range” to describe a technology later in this podcast. A super interesting episode!

Leandro reminds me of myself (though I’m obviously not quite as bright), getting interested in bleeding edge, space age languages like Idris then dialing back the type astronautiness to more breathable air to achieve things in the real world with languages like OCamL. Enjoy! Hopefully some of you smart people can help push #RIOT forward. It seems like a great idea without peer in the tech world.

cross-posted from: https://lemmy.world/post/20776659

A quick, naive AI generated Purescript translation (quickly generated that probably doesn’t work but will help get me started later)

module Main where

import Prelude
import Effect (Effect)
import Effect.Aff (launchAff_)
import Effect.Aff.Timer (setInterval)
import Effect.DOM (window)
import Web.HTML (document)
import Web.HTML.Document (getElementById)
import Web.HTML.Element (Element, toElement)
import Web.HTML.HTMLCanvasElement (getContext2D, getCanvasElementById)
import Web.HTML.Canvas.Image (newImage, getWidth, getHeight, setSrc)
import Web.HTML.Canvas.CanvasRenderingContext2D (CanvasRenderingContext2D, drawImage)
import Web.HTML.Types (CanvasElement, Image)
import Web.DOM.Node.Types (Node)

foreign import requestAnimationFrame :: (Effect Unit -> Effect Unit) -> Effect Unit

-- Loads the image and begins the animation
startAnimation :: Effect Unit
startAnimation = do
  img <- newImage
  setSrc img "example1.jpg"
  canvas <- getCanvasElementById "myCanvas"
  context <- getContext2D canvas

  -- We defer animation start until the image is loaded
  imgOnLoad img (beginAnimation context img)

-- Sets the image `onload` handler, safely deferring canvas drawing until the image is ready
imgOnLoad :: Image -> Effect Unit -> Effect Unit
imgOnLoad img action = do
  foreignOnload img action

foreign import foreignOnload :: Image -> Effect Unit -> Effect Unit

-- Initializes the animation loop
beginAnimation :: CanvasRenderingContext2D -> Image -> Effect Unit
beginAnimation context img = do
  imageWidth <- getWidth img
  imageHeight <- getHeight img
  let row = imageHeight
  requestAnimationFrame (animate context img row imageWidth imageHeight)

-- Animates drawing row by row
animate :: CanvasRenderingContext2D -> Image -> Int -> Int -> Int -> Effect Unit
animate context img row imageWidth imageHeight = do
  drawImage context img 0 row imageWidth 1 0 0 imageWidth row
  let nextRow = if row > 0 then row - 1 else imageHeight
  requestAnimationFrame (animate context img nextRow imageWidth imageHeight)

main :: Effect Unit
main = do
  startAnimation

cross-posted from: https://beehaw.org/post/16413694

Appropriate levels of physical activity, sedentary behaviour and sleep (collectively termed movement behaviours) are essential for the healthy growth and development of preschool-aged children.

This was the impetus for creating the Canadian 24-Hour Movement Guidelines for the Early Years (birth to four years). Likewise, this is why the World Health Organization adopted the Canadian guidelines when creating the global guidelines on physical activity, sedentary behaviour and sleep for children under five years of age.

Considering the extensive benefits of movement behaviours, it is very alarming that a recent study found that only 14 per cent of preschoolers around the world are meeting movement behaviour guideline recommendations.

cross-posted from: https://beehaw.org/post/16402193

2024-10-05 by GIMP Team

This is a short development update on our progress towards the first release candidate for GIMP 3.0. We recently reached the string freeze milestone. What this means is that there will be no more changes in user-facing text (like GUI labels and messages) so that translators can work on the final translations for the 3.0 release.

cross-posted from: https://infosec.pub/post/18381069

cross-posted from: https://infosec.pub/post/18350400

Join Daniel Ribar, TK Princewill (Community Managers), and the rest of the community for TownHall 177

Tune in to live zoom event to participate in the call: https://bit.ly/3rCicSR

More info below. 👇👇👇

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