Kaushal (liftlines)

If you’ve used the Keycard Hardware wallet (Keycard.tech) I’d love to hear your feedback in this thread here.

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What hardware wallet are you using and why?

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Challenge: Name an objectively better hardware wallet than Keycard.tech ? -Fully Modular. Removable/re-chargable battery - One shell and many cards (wallets) as you like to use with it. Stop carrying a bag full of ledgers! - Verify authenticity of the device (no supply chain poisoning possible) - Stops you from blind signing - Fully open source and entirely air-gapped - EAL6+ certification, which is rare - Works with 15+ popular soft-wallets (Metamask, Rabby, Safe...). No custom app BS🤯 👉keycard.tech

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Build a simple contemporary browser based PDF editor using open source libraries (PDF.js, PDF-LIB, Canvas) to support in-browser PDF editing (merge, split, add text, add image, sign, annotate, convert to Word) Amount USDC 250 Deadline 02/07/2025 @bountybot

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The ondevice zk module from @faust expanded to all devices on @weatherxm (cc @vrypan.eth ) to generate proof of untampered data including calibration, streamed to Blocksense network (zk oracle built by @zahary.eth ) and fed to products like Skysight (built by Matthew Scutter) is a match made in heaven 🤯 Wdyt?

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Somethings brewing ☕️

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Build an online wizard to simulate penalties and slashings for an Ethereum validator, in different scenarios (e.g. node offline, double vote etc). Will link you to the right sections of the consensus specs that describe the calculations. Amount 0.5 ETH @bountybot

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