Aviv B 💎 🙌

קשה להסביר נדירות יחידה במינה וביזור שאין כמותו בלי אמון בצד שלישי יופיו בפשטותו טכנולוגיה מהפכנית קסם של האינטרנט וקסם של קהילה יש מעטים שמבינים נאה כמותו עוד לא ראיתי מימי.

BitMEX Research just published a counterproposal to BIP-361. Don't freeze any bitcoin unless someone proves the quantum threat is real. The mechanism is a "canary fund." A special address is created where no one knows the private key, but the public key is published. Any spend from that address is cryptographic proof a quantum computer broke Bitcoin's signatures, and it automatically triggers a network-wide freeze via a pre-loaded soft fork. Users can donate bitcoin to the canary through a 1-of-2 multisig, where one key is theirs and the other is the canary. This creates a growing bounty that incentivizes whoever builds a quantum computer to prove it publicly rather than quietly drain wallets. There's also a safety window, quantum-vulnerable spends would be allowed but locked for roughly one year. If the canary triggers during that window, those coins freeze retroactively. The catch: this assumes the first entity capable of breaking Bitcoin will claim a bounty rather than steal millions of BTC. If that bet fails, Bitcoin gets the catastrophe it was trying to prevent. BIP-361 trades freedom for safety on a fixed timeline. The canary trades safety for freedom until the threat materializes. Neither is perfect. Both force the same question, how much of "your keys, your coins" are you willing to sacrifice for quantum insurance you might never need?

A while ago, we've held a "quantum night", where we discussed how quantum computing could affect Bitcoin, and what can be done about that. We have now published the videos from that event. Subtitles are available for all videos, and it is recommended to use them.

Bitcoin works best when transactions don’t easily reveal who paid whom. But in practice, sharing addresses and receiving payments can still create privacy challenges. Silent Payments offer a different approach. They allow someone to publish a single address while still receiving payments that appear as unique, unlinkable transactions on the blockchain. In this blog post, Btrust grantee @sdmg15 explores how Silent Payments work and why they’re an important development for Bitcoin privacy. The article also walks through a practical example of detecting Silent Payment outputs using Frigate, an experimental Electrum server, and @bitcoindevkit. If you're curious about how Silent Payments could improve privacy and how developers are experimenting with tools around them, this post is a great place to start. Read the full blog for more details: blog.btrust.tech/silent-payment…

There are officially less than 1,000,000 BTC left to be mined. The vast majority of the supply is already out there and most people still have zero bitcoin.

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One more week until the 20,000,000th bitcoin is mined. The remaining 1,000,000 will take 114 years.

כל הכבוד לנו שהשנה לא משתמשים בנפצים כדי לא לטרגר אנשים עם פוסט טראומה ופשוט עברנו לטילים בליסטיים ומלחמת עולם שלישית

Last night changed the Middle East. Here's what you need to understand before the next days unfold.

Thank you president Trump for getting Mooshali @realDonaldTrump

We're excited to announce that the RITREK app is now available on Google Play. Create, upload, monitor, and initiate Bitcoin Timelock-Recovery plans from your Android device. Your seed phrase remains secure on your hardware wallet. Here's how to create a Timelock-Recovery plan with the RITREK app: Step 1: Get the app play.google.com/store/apps/det… Step 2: Generate a Bitcoin address on a second, easily accessible wallet. This is the destination wallet your Bitcoin will move to during a recovery event. For example, if you use a passphrase on your hardware wallet (also known as "the 25th word" of your 24-word seed), your second wallet could be the same hardware wallet but without the passphrase. Another option is a wallet held by a friend or family member. Step 3: Connect your Trezor or Ledger wallet. Trezor users should download Trezor Suite Lite first: play.google.com/store/apps/det… Advanced users with hardware wallets other than Trezor or Ledger can use Electrum's built-in Timelock-Recovery plugin. Cable connection only - the app does not support Bluetooth yet. Step 4: Sign the two Timelock-Recovery transactions. Enter the timelock that you wish (default: 90 days) and a reasonable fee rate* - then sign the two timelock-recovery transactions from your main wallet to the second-wallet address. As always, verify the destination address on your hardware wallet screen! Step 5: Your Recovery-Plan is ready. Lost access to your main wallet? Swipe the button to initiate the transaction that will move your Bitcoin from your main wallet to the second wallet within the timelock period. You can also download the pre-signed transactions as a JSON file and send it to friends and family - no one can change the destination or timelock of these transactions. Your relatives could then initiate the recovery by going to ritrek.com/send If your data leaks and the pre-signed transactions are broadcast against your will, you'll receive a push notification and have the full timelock period (i.e. 90 days) to move your Bitcoin elsewhere. Limitations RITREK is suitable as a recovery solution for wallets that are not used frequently. Spending any amount of Bitcoin from your main wallet will invalidate the recovery plan (the pre-signed transactions) that was created before - and you will have to start over. Additionally, new funds received after the recovery plan is created will not be covered by the existing plan. If you want to keep using the same hardware wallet with the same seed phrase, we recommend using a different account for any new funds you may receive: trezor.io/guides/trezor-… RITREK only works with modern Native SegWit wallets (your addresses should start with "bc1q..."). * Fee rate recommendation: it is hard to predict the fee rate that will be needed far in the future for your Bitcoin transaction to be mined in a reasonable timeframe. Your transactions can always be accelerated via CPFP techniques or by using accelerator services (mempool.space/accelerator), but this requires some technical skill. At the moment, fee rates are very low (1-2 sat/vB), but to be safe for the future, we recommend using a higher fee rate of 50 sats/vB, which would amount to ~$4-$40 for typical transactions - a negligible amount in recovery situations. Try the free plan now with up to 0.05 BTC of recovery-plan coverage!

LIKE, IF YOU BOUGHT THE #BITCOIN DIP

@voltage_cloud @giacomozucco @SD_Markets @KrakenInsto What was the fee?

The story behind the 1st public $1,000,000+ transaction over the lighting network. @SD_Markets @KrakenInsto @voltage_cloud

Lightning makes BTC transactions near-instantaneous. By working with @SD_Markets and @voltage_cloud on this proof of concept, Kraken has shown how Lightning enables BTC treasury operations & institutional-sized settlements 🤝

BUY THE DIP

At these levels, it’s all forced sellers. Anyone that is rational and can wait, would wait. Strategy and every other treasury co will happily buy your coins at $80k, $90k, $0.1M, $0.5M etc. You only sell here if you cannot wait for the infinite bid.

Taproot Quantum Spend Paths Taproot is potentially an extremely helpful tool for quantum safety. We would advocate a model where wallets have the ability to spend the same Bitcoin outputs both with a quantum safe tapleaf & a quantum vulnerable leaf bitmex.com/blog/Taproot%2…

רן גואילי, החטוף האחרון, הושב הביתה אחרי 843 ימים 💔 רס"ל רן גואילי, לוחם יס"מ, נפל בקרב ההגנה על קיבוץ עלומים ב-7 באוקטובר. בן 24 בנופלו. רס"ר רן (רני) גואילי ממיתר היה לוחם יס"מ נגב במחוז הדרומי. רן התגאה להיות שוטר וללבוש את המדים הכחולים. בבוקר השבת השחורה, רני היה פצוע בביתו עם שבר בכתף בעקבות תאונת אופנוע שעבר אך מיד כששמע על חדירת המחבלים, עלה על מדים ויצא לסייע לחבריו מהיחידה בלחימה. בדרך נתקל במחבלים ולחם בעוז ובחירוף נפש בחזית הקרב בכניסה לקיבוץ עלומים, ואף קיבל את הכינוי ״רן מגן עלומים״ מקהילת הקיבוץ. לאחר מספר חודשים התקבלה הערכה שלאחר קרב עיקש ורק לאחר שאזלה לו התחמושת, רן נפל בקרב ונחטף לעזה. רן בעל החיוך הגדול והכתפים הרחבות היה כולו לב ענק, חבר אמת, אהוב על כולם, אהב להנות מהחיים, גבר צעיר וערכי, תמיד דיבר בגובה העניים עם נוכחות עוצמתית ושלווה. רן הותיר אחריו את הוריו איציק וטליק, את אחיו עומרי ואחותו שירה. מטה משפחות החטופים אבל ומרכין ראש לזכרו של רן ומשתתף בצערה הכבד של משפחת גואילי. החטוף האחרון, רן גואילי, חזר הביתה 🎗️

Hamas destroyed Gaza once. It must not be allowed to turn Gaza into a launchpad for jihad against Israelis again.

17 years ago today, the first-ever tweet mentioning Bitcoin was posted by Hal Finney.

@Lihi4Lihi @hasolidit ממש לא היחידה

@hasolidit ביטס אוף גולד הם יקרים בצורה לא הגיונית אבל לצערי הם הפלטפורמה הישראלית היחידה שהיא לא ״גן סגור״ אז רק דרכה אפשר להחזיר לארץ קריפטו לבנקים בארץ ולגבי ביטקוין ברור שכן

ביטקוין מגמגם, מדשדש, מובס ומושפל בצילן של מתכות נוצצות שהשאירו לו אבק השנה. האם זה מערער את התזה מבחינתי? לא ממש. 17 שנים שהפרוטוקול רץ בלי מנגנון מרכזי שיכול לחסום עסקאות באופן שרירותי. בעיניי זו עדיין ההתגלמות הגבוהה ביותר של בעלות קניינית שאינה תלויה בחסדי בנקים וממשלות. אז אני מחזיקה קצת וקונה עוד במחירים האלה. ספציפית, אני קונה דרך ביטס אוף גולד מתוך הנחה שפלטפורמה ישראלית מסודרת תהיה ערוץ יעיל להעביר או להוריש את הדבר הזה לילדים בבוא העת. גילוי נאות יש לי שת"פ עם @BitsofGold_LTD ואני לקוחה שלהם.