MONDAY, APR27
1. RoninDojo v3.0.0, 2. Strike BLOC as miner grain storage, 3. Fold Business bitcoin bonuses, 4. Spiral funds Lightning fuzz testing
From Proto and Bitkey - part of the Bitcoin ecosystem at Block, Inc.
1. ronindojo
Two years after the pre-dawn arrests of Samourai Wallet’s developers, RoninDojo has chosen this anniversary not as a moment of mourning but as a launching point, announcing the beta release of RoninDojo v3.0.0. The timing is deliberate. April 24, 2024 sent a chill through Bitcoin’s privacy-tooling ecosystem, forcing projects to reassess their legal exposure and technical roadmaps. That RoninDojo arrives at v3.0.0 on the same calendar date signals institutional resolve: the work of building privacy-first infrastructure continues regardless of prosecutorial pressure. RoninDojo is a full-node stack purpose-built around bitcoin sovereignty, combining a self-hosted Dojo backend with Tor-routed communication and coinjoin tooling. The v3.0.0 beta represents a major version increment, suggesting architectural changes rather than incremental patches. According to RoninDojo’s announcement, the team describes the release as “a step forward for privacy-first Bitcoin tooling.” For the broader freedom-tech community, the release lands as a reminder that open-source development is a durable response to legal intimidation — slower perhaps, but harder to shut down than any single company.
-EDITOR·OP_DAILY2. bloc
Strike’s Bitcoin Line of Credit, known as BLOC, is drawing comparisons to grain storage from an unexpected corner: a Bitcoin mining operation that also farms corn and soybeans. Wilson Mining explains the parallel plainly. Farmers routinely store harvested grain rather than sell immediately after harvest, when commodity prices tend to hit seasonal lows. Waiting until spring often yields meaningfully better prices. Miners have historically faced the same problem with no equivalent tool. Monthly electricity and operational bills forced bitcoin sales regardless of market conditions, meaning miners absorbed bear market prices on a recurring basis with no way to defer. BLOC changes that calculus. According to Wilson Mining, “with a BLOC, we can store our Bitcoin, access the cash needed to pay bills, and sell Bitcoin later at a more favorable price.” The strategy works as long as bitcoin appreciates faster than the cost of capital — a threshold that has held across most multi-year periods. The framing reframes mining treasury management from reactive selling into something closer to commodity hedging, a concept familiar to agricultural operators but new to most of the mining industry.
-EDITOR·OP_DAILY3. fold
Fold Holdings has launched Fold Business, a bitcoin financial platform aimed at employers and their workforces, with a bitcoin bonus program as its first product. The structure is straightforward: employers designate USD bonus amounts on their existing payroll schedule and Fold handles conversion to bitcoin, custody, vesting administration, and delivery through the Fold app, with no changes required to payroll systems. The built-in vesting mechanic is the differentiating detail. As Fold puts it, “cash bonuses reward the past — this gives employees a reason to stay.” Rather than an immediate cash payment that clears an account within days, bitcoin bonuses accumulate and vest over time, tying employee retention to an appreciating asset. Steak ‘n Shake, with over 10,000 hourly workers across the United States, and Simple Mining, a bitcoin hosting firm in Iowa, are the flagship launch partners. Fold (Nasdaq: FLD) is the first publicly traded bitcoin financial services company and has been building toward the B2B market as a natural expansion from its consumer app, debit card, and credit card products. The employer benefit space is large and largely untouched by bitcoin-native companies.
-EDITOR·OP_DAILY4. fuzz
Spiral has announced a grant to Nishant Bansal, who is working to improve Lightning Network security through systematic fuzz testing of state machine implementations across multiple LN codebases. According to Spiral, Bansal is “improving LN security by adding state machine fuzz tests across implementations,” combining custom-built tests with contributions to the open-source Smite project to ensure Lightning workflows are stress-tested from both protocol and state interaction perspectives. Fuzz testing exposes software to malformed, unexpected, or random inputs to surface edge cases that structured unit tests routinely miss. In a payment protocol where implementation flaws can be exploited by malicious nodes to drain funds or corrupt channel state, this class of testing is not optional infrastructure — it is a core security layer. The Lightning Network is implemented across several independent codebases including LND, CLN, and LDK, and inconsistencies between them at the state machine level represent a meaningful attack surface. Spiral, a bitcoin-focused subsidiary of Block, funds open-source developer work to strengthen bitcoin’s privacy, security, and scalability. Bansal’s work targets the protocol’s trust foundation directly.
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