Native UTXOs on Ethereum. Payments should be one-shot objects, not permanent state. Bitcoin got this right. Ethereum can bring the same idea to payments: prove existence from history, keep only a spent bit in state, and reduce permanent state by ~99.8%. Check out the blog post for details.

A normal Bitcoin UTXO is limited in what it can express. Bitcoin Script can enforce spending conditions, but it was not designed to maintain the flexible application state required by financial applications. Arch extends this model by creating Programmable UTXOs. Here’s how: → A Programmable UTXO combines a real Bitcoin UTXO with an Arch account containing application state and program logic. → Instead of representing only an amount of spendable BTC, the UTXO can now interact with applications built through the ArchVM. → That BTC could be used as collateral in a lending market, supplied as trading liquidity, or governed by another financial program. → Arch tracks the application state, executes the relevant instructions, and verifies the resulting state transition through its validator network. → When the underlying BTC needs to move, Arch validators sign the resulting Bitcoin transaction and settlement occurs on Bitcoin. The BTC is not recreated as an ERC-20 token or synthetic representation on another network. The foundation remains a real Bitcoin UTXO. Arch makes that UTXO programmable. Bitcoin created the UTXO. Arch turns it into programmable financial infrastructure.

📊 Bitcoin UTXO analysis signals the start of a broader capitulation phase, as the ratio of #UTXOs# spent at a loss has dropped to its lowest levels — corresponding to bear market phases — analyst @Darkfost_Coc points out. This is the first time this signal has triggered since the start of the correction in October 2025. The analyst notes that these periods "have always been profitable for long-term investors," as they correspond to the moment when the majority gives up and loses interest. Meanwhile, analyst @lukasz_wydra highlights that the bullish RSI divergence on the #Bitcoin# chart has now been confirmed — with the decline stalling exactly inside a key support zone while the expected panic failed to materialize.

Toccata hard fork brings programmable UTXOs to @kaspaunchained and native covenants and ZK verification to its Proof-of-Work BlockDAG. Our article covers what changed, what Argent adds for builders and how ChangeNOW supports $KAS. See what Toccata adds to Kaspa 👇

RGB Lightning Node v0.0.4 Released: Full UTXO Management Support — Control Panel: — API: — CLI: We are pleased to announce the release of RGB Lightning Node v0.0.4, introducing comprehensive UTXO management capabilities that provide users with granular control over their Bitcoin UTXOs for RGB protocol operations. This release focuses on UTXO lifecycle management — a critical infrastructure layer for efficient RGB asset issuance, transfer, and on-chain resource optimization. Key Features: • UTXO Overview — Monitor all UTXOs with real-time status tracking, linked RGB asset visibility, and available operation context. • Create UTXOs — Generate dedicated UTXOs purpose-built for RGB asset issuance, transfer, and management workflows. • Unlock UTXOs — Release reserved UTXOs and consolidate funds back into available wallet balance for flexible resource allocation. • Increase UTXO Capacity — Expand the funding capacity of existing UTXOs to support higher-throughput RGB asset transactions. Efficient UTXO management is foundational to scalable RGB protocol operations on the Lightning Network. This release enables developers and node operators to optimize their on-chain footprint while maintaining full control over asset-linked transaction outputs. Make Bitcoin Smart.

Can Bitcoin run smart contracts? RGB++ is a non-EVM Bitcoin layer that combines Bitcoin’s UTXO model with the RGB protocol and the Nervos blockchain to create native Bitcoin smart contracts. Our research team wrote a beginner’s guide to how it works. Check it out below:

📊 This cycle was likely the one where LTHs were the most active. On this Heatmap, LTH activity is visible through the evolution of CDD (Coin Days Destroyed). It’s a simple indicator that calculates the number of days a BTC was held before being moved (Spent UTXO). The premise is the following —> when BTC is moved by LTHs, it’s very often linked to a selling intention. Their activity intensified during this cycle, likely thanks to available liquidity enabling it, notably with the arrival of ETFs and companies that built up BTC treasury reserves. However, we can see that the increase in this activity doesn’t only occur at tops; some capitulation episodes are worth noting. On the other hand, BTC movements such as Coinbase’s, with 800,000 BTC moved, a large number of which had been held for more than 6 months, can also cause the CDD to spike suddenly, but this remains anecdotal. Currently, LTHs have slightly increased their activity with Bitcoin’s recent rise, likely drawn by quick profits, but overall 2026 remains fairly calm on that front. The LTHs are waiting.