The assessment is based on a single, highly authoritative primary source that directly corroborates the statement. The official Coinbase status page, which has the highest possible relevance and authority for this claim, explicitly confirms that the company was investigating an issue causing 'delayed on-chain receive transactions'. The other provided sources are either irrelevant to the specific technical issue mentioned, focusing on topics like investment plans or market data, or are unofficial user-generated content describing a different, personal problem. There is no conflicting evidence among the sources. The direct confirmation from the company's official system performance page provides strong and sufficient evidence to conclude the statement is true.