Zcash founder Zooko Wilcox explained how the Ironwood hard fork on July 28 will address the uncertainty over the serious imbalance in the Orchard Protected Pool.
summary
- Zcash will close the old Orchard pool, limiting the amount of ZEC it can leave behind after Ironwood.
- Ironwood cannot identify counterfeit coins individually but can prevent excess hidden supply from escaping the Orchard.
- Temporary exchange and wallet disruptions may occur as providers prepare for the Zcash upgrade on July 28.
The upgrade will not identify or freeze individual counterfeit coins. Instead, it will close the old pool and limit the amount of ZEC that can leave it.
In a Posted on July 19 on XWilcox explained how the planned upgrade would deal with any hidden oversupply if the flaw was exploited before developers patched it. Since Orchard hides the transaction details, the network cannot prove that the fake ZEC was never created.
Ironwood will seal the weak Orchard Basin
Ironwood, also known as NU6.3, is scheduled to be activated at block 3,428,143 on July 28. The upgrade will deprecate the existing Orchard pool and introduce a new protected pool based on the patched circuit.
According to According to the official Ironwood user update for Zcash, users will no longer be able to send or receive ZEC within the Old Orchard complex after activation. Funds can only leave through the revolving door, preventing more ZEC funds from exiting than were legally entered.
The Zcash team said it believes the flaw is “unlikely to be exploited,” but users cannot independently prove that a fake ZEC was not created. Ironwood aims to trap any excess value within the ancient complex rather than allow it to enter wider circulation.
Orchard’s error left a question about the offer that Zcash was unable to prove
Security researcher Taylor Hornby discovered the Orchard vulnerability on May 29 during an audit of the protected system. The flaw could have allowed an attacker to create a fake ZEC within Orchard without leaving a clear public record.
like I mentioned By crypto.news, the developers first deactivated Orchard and then restored it through a NU6.2 hard fork with patched encryption. No evidence of unauthorized value creation was found, but Orchard’s privacy means that past exploitation cannot be ruled out with complete certainty.
Crypto.news later reported That Ironwood would build a new protected pool and use a revolving door to control the departure value of the old pool. Node operators can then verify that the ZEC in circulation does not exceed the amount allowed by the network’s monetary rules.
Wallets and exchanges may temporarily suspend services
Zcash users do not need to take immediate action before the hard fork. However, wallets, exchanges and other service providers may temporarily suspend deposits, withdrawals or related services while software upgrades are completed.
The official network guidelines say Orchard users will eventually need wallet support to transfer funds to the new pool. Funds may remain temporarily unavailable in wallets that have not added the required migration tools.
The July 28 activation also comes after Zcash moves away from its legacy zcashd client. Providers still completing this migration may need more time before fully supporting Ironwood.
Zcash adds more security checks after the flaw
The Orchard incident led to broader security work across the Zcash ecosystem. As reported by crypto.news, AI-assisted review is used Anthropic myth system No additional critical vulnerabilities were found after the original flaw was disclosed.
The developers are also seeking independent audits and official verification of the updated cryptosystem. The work aims to reduce the risk of another hidden counterfeiting flaw and give users stronger ways to verify Zcash’s supply rules.
Ironwood addresses the unresolved display issue rather than addressing the bug itself which has already been fixed. By closing Orchard and controlling withdrawals through a revolving door, the hard fork aims to prevent any virtual counterfeit ZEC from entering circulation.
