根據 Zcash Foundation 的說法，該組織已於今日釋出 Zebra 4.5.1，以修補一項關鍵的共識層級弱點（GHSA-2prc-cj5x-4443），影響 P2SH（Pay-to-Script-Hash）交易的簽章運算（sigop）計數。該瑕疵在昨日釋出的 4.5.0 版本中就已存在，可能導致節點得到彼此矛盾的驗證結果，並觸發潛在的共識分叉。此弱點源自不同實作之間的 sigop 計數邏輯不一致。Zcash Foundation 強烈敦促所有節點運營者立即升級，並表示升級至 4.5.1 是確保節點維持在正確鏈上、避免潛在分叉風險的唯一方式。

根據 5 月 29 日的 Finance Feeds，支付巨頭 Mastercard 已與去中心化預言機協議 Chainlink 合作，為其全球用戶建立直接的法幣到加密貨幣（fiat-to-crypto）閘道。此整合使 Mastercard 卡片持有人能夠繞過集中式交易所，並透過鏈上智慧合約直接取得數位資產。Shift4 Payments 負責初始的卡片交易層，而 Zero Hash 則負責合規追蹤、託管路由以及法幣到加密貨幣的結算。資金隨後會透過 Chainlink 的基礎設施路由至公開的分散式分類帳。

根據 ChainCatcher，Hash Global 創辦人 KK 今日表示，Web3 作為一個技術產業不應依賴救世主或英雄人物。KK 表示，以太坊應該像比特幣一樣維持高度中立性與去中心化，並盡可能需要的治理最少。他強調，偉大且有用的技術會自然成長，而那些需要特定個人或團體才能生存的東西不值得保留。KK 也提到，Web3 創業者應該專注於運用技術來打造新的商業模式，而不是被與投機的接近程度所分心。

根據 The Block，韓國本地的加密風險投資公司 Hashed 近期已從阿布達比環球市場（ADGM）取得金融服務許可證（FSP）。該許可證允許 Hashed Global Management Limited（HGML）在 ADGM 進行受監管的金融活動，

Zcash 的價格在 Zcash 基金會近期安全更新的情況下仍下跌 5.47%，至 $325.95。關鍵鏈上指標依然強勁，隨著隱匿（shielded）交易量上升以及創紀錄的網路雜湊率（hash rate），市場面貌仍具支撐。該價格正在測試支撐位，以期望可能的反彈。

Bitcoin price continues to stay below $72,000 USD, with weakening market demand, investors beginning to sell off positions, and limited upside potential in the short term. On-chain activity and mining hash rate have declined, miners' profitability has weakened, and market concerns about miner sell-offs are intensifying.

Bitcoin miners currently have an average production cost of $88,000, with a market price of approximately $69,200, representing a loss margin of 21%. Mining difficulty has decreased by 7.76%, with hash price approaching the break-even line. Most mining companies are shifting toward AI business, while increased bitcoin sales by miners add selling pressure to the market. The next difficulty adjustment is expected in early April, and if the situation persists, further downward adjustments may occur.

Due to rising energy prices and tensions in the Middle East, Bitcoin mining costs have increased, with current production costs at approximately $88,000. Miners are losing nearly $19,000 per Bitcoin, representing an overall loss of 21%. Network mining difficulty has decreased by 7.8%, hash rate has declined, and the market may face selling pressure.

Gate News Report: On March 21, according to CloverPool data, Bitcoin mining difficulty was adjusted at block height 941,472 at 05:54 today, with mining difficulty dropping to 133.79 T, representing a 7.76% decrease, marking the second largest difficulty drop in 2026. Current network hash rate stands at 933.51 EH/s. Analysis shows that the next Bitcoin mining difficulty adjustment is expected to occur in 14 days, with a potential decline of 0.4%.