Bitcoin’s Replace By Fee (RBF) feature, implemented in Bitcoin Core 0.12.0 via BIP125, offers a pragmatic solution for unconfirmed transactions but remains mired in controversy. By allowing senders to resend a transaction with a higher mining fee using the same UTXO inputs, RBF addresses network congestion and low-fee issues while simultaneously introducing significant security vulnerabilities, most notably the potential for double-spending. This deep dive explores the mechanics, types, and inherent risks of a feature that continues to spark debate within the Bitcoin ecosystem.
about Bitcoin's Replace By Fee: How RBF Works & Risks ExplainedBob
0 posts last weekBitcoin Awaits PCE Data as Fed Rate Cut Odds Shift
Bitcoin traded at $111,336, down 1.8% over 24 hours and 5.4% for the week, as the cryptocurrency market braces for Thursday’s release of the Personal Consumption Expenditures (PCE) inflation data. This key Federal Reserve gauge is expected to heavily influence whether the central bank proceeds with a widely anticipated interest rate cut next month. Market sentiment, as measured by prediction platform Myriad, shows 61% of users expect BTC to decline to $105,000 before attempting new highs, reflecting cautious short-term positioning amid identifiable selling pressure between $115,000 and $119,000.
about Bitcoin Awaits PCE Data as Fed Rate Cut Odds ShiftBOB Upgrades to ZK Fraud Proofs for Bitcoin DeFi
Build on Bitcoin (BOB), a layer-2 blockchain network, has implemented zero-knowledge (ZK) fraud proofs within an optimistic rollup framework, marking a significant technical upgrade. This shift replaces traditional slow fraud-checking methods with faster cryptographic proofs, resolving disputes in minutes. The upgrade positions BOB closer to achieving full decentralization on L2Beat’s rankings while expanding Bitcoin’s DeFi potential to rival Ethereum’s ecosystem. By combining optimistic rollups with ZK proofs, BOB aims to enhance scalability, security, and efficiency for Bitcoin-based decentralized finance.
about BOB Upgrades to ZK Fraud Proofs for Bitcoin DeFiBolivia’s Crypto Payments Surge 630% to $430M Post-Ban Lift
The Bolivian central bank (BCB) revealed a 630% year-over-year surge in domestic crypto transactions, reaching $430 million since regulators reopened payment channels in June 2024. Over 86% of the 10,193 recorded transactions were executed by individuals, predominantly men, with Binance-linked rails dominating activity. The growth follows Resolution 082/2024, which recognized virtual assets and allowed banks to process crypto orders. Bolivia further expanded crypto use in March 2025, permitting state energy firm YPFB to pay for fuel imports amid dollar shortages. The BCB now mandates daily bank reporting, OFAC sanctions screening, and plans quarterly transparency dashboards. A new legal framework (Supreme Decree 5384) introduces fintech licensing and AML rules, while a nationwide literacy campaign educates citizens on risks like fraud and volatility.
about Bolivia's Crypto Payments Surge 630% to $430M Post-Ban LiftBukele Criticizes Menendez Amid Bribery Scandal and Bitcoin Controversy
U.S. Senator Bob Menendez, a critic of El Salvador’s Bitcoin Law, faces an 11-year prison sentence amid bribery allegations, including cash and gold bars found in his home. Despite his opposition, President Nayib Bukele has reinforced his pro-Bitcoin stance, even as El Salvador amends its Bitcoin regulations to comply with IMF conditions, making Bitcoin optional for businesses. The legislative change passed swiftly, with overwhelming support, while the country continues to attract major crypto firms like Tether.
about Bukele Criticizes Menendez Amid Bribery Scandal and Bitcoin ControversyEl Salvador Amends Bitcoin Laws to Comply with IMF Loan Agreement
El Salvador’s Congress has swiftly approved amendments to its Bitcoin laws to comply with an IMF deal, making Bitcoin optional for private sector merchants. The reform, passed with 55 votes, aims to ensure Bitcoin’s status as legal tender while the country continues to accumulate BTC, holding 6,049 BTC worth approximately $633 million.
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