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Zcash (zcash)

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Zcash
zcash · Crypto
Bullish
$468 ▼ 2.90%

The Ironwood upgrade for Zcash activated: the network sealed a shielded pool of about $1.7bn and retired Orchard, where an undetected vulnerability had existed for four years. Zcash researchers published over 2,700 machine‑checked theorems intended to rule out undetectable counterfeiting bugs.

Why it's notable

The upgrade and accompanying formal proofs explain the focus on Zcash: the network is addressing a historical vulnerability and introducing rules that cap shielded‑pool withdrawals, affecting trust and coin flow mechanics.

  • •Ironwood activated — the shielded pool was sealed at about $1.7bn (CoinDesk).
  • •Orchard was retired due to a counterfeiting bug that went undetected for four years (CoinDesk).
  • •Zcash published over 2,700 machine‑checked theorems intended to rule out undetectable counterfeiting bugs in Ironwood (Cointelegraph).
Risks: Formal proofs reduce technical risk, but implementation and user behavior (withdrawals/liquidity) may create operational or liquidity constraints; the long‑term impact on flows is not yet clear.
Updated: 7/29/2026, 12:00:00 PM