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Crypto

D-Wave CEO says quantum computing will eventually break Bitcoin proof-of-work protocol

D-Wave Chief Executive Alan Baratz warned that quantum computing could eventually break Bitcoin’s proof-of-work protocol, blockchain outlet U.Today reported on July 29. He raised the possibility that proof of work, viewed as a key security foundation of the Bitcoin network, could become a target as quantum technology advances. No specific countermeasures, timing of a potential attack or technical alternatives were presented, leaving the warning as the main confirmed point.

Crypto

Dogecoin developers spar over security model, reject claims of Litecoin dependence

Dogecoin developers and the community are arguing over the coin’s merged-mining security model. The dispute centres on whether Dogecoin depends on Litecoin for security or draws it from multiple merged-mined Scrypt-based layer-1 chains. Dogecoin Foundation developer Paulo Vidal questioned reliance on other blockchains, while developer Chromatic X said Dogecoin depends on all merged-mined Scrypt chains. Co-founder Billy Markus also weighed in. No conclusion has been reached on changing the structure.

Crypto

Forbes July promising cryptos: XRP ranks fourth after bitcoin, ethereum and BNB

XRP ranked fourth on Forbes\' list of 10 promising cryptocurrencies to invest in for July 2026, behind bitcoin, ethereum and Binance Coin (BNB). Forbes said it ranked digital assets with market values of $5 billion or more based on real-world usability, market size, recent price moves and trading activity. It said the criteria prioritized practical use cases and long-term appeal, while also weighing supply structure and ownership concentration.