Take control: Blockstream Jade integration is officially LIVE in Custody Safe. SmashFi Custody Safe now seamlessly integrates with Blockstream Jade hardware wallets, enabling Bitcoin holders to maintain complete control over their private keys while leveraging automated growth strategies. Why Hardware Wallet Integration Matters for Bitcoin Self-Custody True financial sovereignty in the cryptocurrency space begins with a fundamental principle: holding your own keys. For Bitcoin investors who value security and independence, leaving digital assets on centralized platforms introduces unnecessary counterparty risk. Exchange insolvencies, security breaches, and unauthorized access remain persistent threats that can result in complete loss of holdings. Hardware wallet integration represents a critical evolution in Bitcoin custody strategy. By maintaining private keys on dedicated physical devices, investors eliminate the vulnerability of hot wallets and exchange custody while retaining full control over their assets. This approach ensures that no third party - including the platform itself - can ever access, freeze, or confiscate your Bitcoin. The integration of Blockstream Jade with SmashFi Custody Safe bridges the gap between uncompromising security and platform convenience. This milestone enables members to leverage automated Bitcoin accumulation strategies and portfolio management tools while maintaining absolute custody of their private keys. Your Bitcoin remains under your complete control, secured by your hardware device, with SmashFi operating exclusively as a watch-only interface. How Blockstream Jade and Custody Safe Work Together Seamlessly The SmashFi Custody Safe now offers direct integration with Blockstream Jade hardware wallets through a sophisticated yet user-friendly architecture. Connection is established via air-gapped QR code scanning, eliminating any direct digital connection that could potentially expose private key material. Your Jade device generates and stores extended public keys (xpubs) that allow SmashFi to monitor balances and generate receiving addresses without ever accessing private keys. Currently live is the seamless manual sweep functionality. After accumulating Bitcoin through Dynamic DCA strategies on the platform, members can initiate transfers to their Jade wallet whenever they choose. The process maintains complete security: transaction details are displayed on your Jade device screen for verification, you physically confirm the transfer on the hardware wallet, and the signed transaction is broadcast without SmashFi ever touching your private keys. This watch-only wallet model ensures absolute zero-trust security. SmashFi can view your balance and transaction history to provide portfolio insights and automated buying services, but cannot initiate any transactions without your explicit authorization on your physical Jade device. Your Auto-Buy plans continue operating seamlessly, with Bitcoin accumulating on the platform until you decide to sweep it to your self-custody hardware wallet. Your Bitcoin, Your Keys: Understanding the Technical Architecture The technical foundation of this integration prioritizes security through proven cryptographic principles. Blockstream Jade operates as a hardware security module, generating and storing private keys entirely within the device's secure element. When you connect Jade to SmashFi Custody Safe, you export only the extended public key - a mathematical derivation that allows address generation and balance monitoring without revealing any private key information. The air-gapped QR code method provides an additional security layer by eliminating direct data connections. Your Jade device displays QR codes containing public key information and signed transactions, while your computer camera reads this data without establishing any two-way digital communication channel. This approach prevents potential attack vectors that could exploit USB connections or wireless protocols. SmashFi's architecture maintains strict separation between custody and functionality. Your Bitcoin accumulated through Auto-Buy strategies resides in SmashFi's secure infrastructure until you choose to transfer it. Once swept to your Jade wallet, the Bitcoin exists exclusively under your control at addresses derived from your hardware device. SmashFi can observe these addresses for balance reporting purposes but possesses zero capability to move funds. This technical separation ensures that platform features like automated purchasing and portfolio tracking operate without compromising self-custody principles. Automated Growth Strategies Without Compromising Security The Jade integration delivers a powerful combination: sophisticated automated Bitcoin accumulation strategies paired with uncompromising self-custody security. Members can continue utilizing SmashFi's Auto-Buy feature to implement Dollar-Cost Averaging and Low-Price Buying strategies, earning Satoshi rewards for qualifying purchases. These automated plans run continuously, accumulating Bitcoin on your behalf while you maintain ultimate custody through your hardware wallet. The roadmap for automation extends even further. Auto Self-Custody functionality will soon enable threshold-based automatic sweeps directly to your Jade wallet. Set your preferred accumulation target, and SmashFi will automatically transfer Bitcoin to your hardware wallet once that amount is reached - zero manual intervention required. This eliminates the operational friction of regular manual transfers while maintaining complete security through hardware wallet confirmation. Transaction fee optimization through Satoshi rewards represents another significant advantage. Members can use the rewards earned through Auto-Buy activities to cover 100% of on-chain withdrawal fees, reducing the cost barrier to regular self-custody transfers. Combined with upcoming USB integration for streamlined xpub registration and mobile QR companion features for enhanced device compatibility, the platform is evolving toward completely frictionless self-custody without sacrificing security or convenience. Getting Started: Setting Up Your Jade Wallet with Custody Safe Connecting your Blockstream Jade wallet to SmashFi Custody Safe is straightforward and secure. Begin by ensuring your Jade device is properly initialized with firmware updated to the latest version. Navigate to the Custody Safe section within your SmashFi account and select the option to connect a Jade wallet. Follow the on-screen instructions to generate an xpub QR code on your Jade device. Position the QR code in front of your computer's webcam, allowing SmashFi to scan and register your hardware wallet as a watch-only account. The entire process requires no direct digital connection - all information transfer occurs through air-gapped QR codes that contain only public key information. Once connected, your Jade wallet appears in your Custody Safe dashboard with full balance visibility and transaction history. Your Auto-Buy plans continue operating as configured, with Bitcoin accumulating on the platform. When you're ready to transfer Bitcoin to your hardware wallet, initiate a manual sweep from the Custody Safe interface, verify the transaction details on your Jade screen, and physically confirm the transfer on your device. Your Bitcoin moves directly to addresses controlled exclusively by your hardware wallet, with SmashFi maintaining watch-only visibility for portfolio management purposes. Please note that SmashFi has updated its Terms of Service and Privacy Policy to reflect the addition of Custody Safe functionality. Smashfi Llc encourage all members to review these documents to understand how the platform handles watch-only wallet data and maintains security standards for hardware wallet integrations.

Blockstream solves quantum threat for Bitcoin. Blockstream deployed post-quantum signature verification on the Liquid Network and broadcast transactions using the new scheme on mainnet. March 05, 2026 @ 7:32 AM EST Blockstream Research has implemented post-quantum signature verification on the Liquid Network using its Simplicity smart contract language, according to an announcement from the company. The deployment includes transactions signed with a post-quantum signature scheme that are broadcast on Liquid mainnet. Blockstream states that the transactions represent the first use of post-quantum signatures on a production Bitcoin sidechain. The transactions are used to secure assets on the network, including Bitcoin and other digital assets issued on Liquid. Preparing for potential quantum risks. Assets on Liquid are currently secured using classical cryptographic signatures such as ECDSA and Schnorr. These signature schemes are widely used across Bitcoin infrastructure but could theoretically be vulnerable to sufficiently advanced quantum computers. Quantum computers capable of breaking Bitcoin's current cryptography do not exist today. However, researchers and developers have discussed the need to explore potential long-term solutions before such technology becomes practical. In many blockchain systems, introducing a new signature scheme would require changes to the network's consensus rules, a process that typically involves coordination across developers, node operators, and other stakeholders. Implementation using Simplicity. The verification system was implemented using Simplicity, a smart contract language used on the Liquid Network and designed for Bitcoin-like blockchains. Because Simplicity allows developers to define custom spending conditions, Blockstream created a verifier that lets users lock assets into contracts requiring post-quantum signatures in order to spend them. According to the company, this allows the feature to be deployed without modifying Liquid's existing consensus rules. The feature is optional, allowing users to move assets into contracts requiring post-quantum signatures while others continue using the network's existing cryptographic methods. Signature scheme and demonstration transactions. The implementation uses a hash-based post-quantum signature scheme developed by Blockstream Research. The verifier supports two operating modes: a standard mode designed for routine use and a fallback mode intended for recovery scenarios if certain data is lost. Blockstream reported broadcasting two transactions on Liquid mainnet to demonstrate the system. One used the standard signature mode, while the other demonstrated the fallback option. Liquid requires transaction sizes to correspond to the computational resources consumed. According to Blockstream, unused space in the demonstration transactions was filled with text from the Bitcoin Whitepaper. Availability for developers. The verifier library and signing tools have been released as open-source software. While the system is available for developers to experiment with, Blockstream said the implementation still requires additional auditing and specification work before broader deployment. There is currently no wallet integration, but the company said the open-source library could allow wallet developers to add support in the future. Remaining limitations. Blockstream noted that the verifier does not make the Liquid Network fully resistant to potential quantum attacks. Several parts of the system remain secured using classical cryptography, including the Bitcoin peg mechanism, Confidential Assets commitments, and Liquid's block-signing consensus protocol. The company said it is continuing research into quantum-resistant alternatives for these components. Broader implications. Although the deployment took place on Liquid, Blockstream said the work could inform future research related to the Bitcoin network. While quantum computers capable of breaking Bitcoin's cryptography have not yet been demonstrated, some researchers and developers view testing potential solutions on production systems as a way to better understand how quantum-resistant cryptography could eventually be implemented if needed.

Newly released US Justice Department emails reveal that convicted sex offender Jeffrey Epstein invested $3 million in Coinbase in December 2014, with the exchange's leadership apparently aware of his involvement. Blockstream founder Adam Back confirmed that Epstein also invested in his Bitcoin firm. The investment opportunity was presented to Epstein by Tether co-founder Brock Pierce. Released emails also indicate Epstein invited Back to visit his island. The disclosures come from a new tranche of documents made public on Friday, shedding light on Epstein's previously undisclosed cryptocurrency investments and connections to prominent figures in the digital currency sector.