TL;DR
- Sean Bowe’s draft would end Zcash Community Grants’ automatic 8% block-subsidy stream and redirect that allocation to the Network Sustainability Mechanism.
- The proposal values ZCG’s holdings net of reported grant liabilities at $125.3 million using an illustrative $1,300 ZEC price, arguing resources can sustain grants.
- The change remains a draft with no activation height, would not affect ZCG’s existing treasury, and would preserve the separate 12% Coinholder-Controlled Fund allocation.
Zcash co-founder Sean Bowe has proposed ending the automatic funding stream for Zcash Community Grants and redirecting its 8% share of the block subsidy to the Network Sustainability Mechanism. The draft ZIP, created October 26, remains unassigned and in Draft status. The proposal would redirect future subsidy allocations without seizing ZCG’s existing treasury, adding another chapter to debates around Zcash’s privacy-focused network.
ZCG Treasury Becomes Central to Funding Debate
The draft says ZCG holds 91,452.98 ZEC and $8.8 million in cash, with $2.4 million in outstanding grant liabilities. At an illustrative ZEC price of $1,300, the proposal values holdings net of those liabilities at $125.3 million. Bowe argues this existing treasury is sufficient for continued grant-making without automatic block-subsidy inflows. That position follows a broader debate over Zcash development funding and how long protocol-defined allocations should continue. For comparison, the draft cites annualized first-quarter 2026 ZCG expenses of $6.12 million, using that figure to illustrate the treasury’s potential financial runway.
Under current parameters, the 8% stream represents roughly 144 ZEC per target-spaced day, or 52,560 ZEC annually. At the proposal’s illustrative $1,300 price, that equals about $68.3 million per year. The draft would withhold that 8% from issuance and credit it directly to the NSM fund for the remainder of the stream’s existing term. The separate 12% Coinholder-Controlled Fund allocation would remain unchanged, as would ZCG’s authority over assets already accumulated.
The NSM is designed to reserve value that can later support block rewards. NU7 already introduces a separate mechanism that directs 60% of transaction fees into the NSM, while miners retain the other 40%. Bowe’s proposal would add the former ZCG subsidy stream to that reserve rather than changing the miner subsidy formula. The mechanism forms part of NU7’s broader changes to fees and rewards, alongside the shift to 25-second blocks.
Crucially, the draft is not part of NU7 and has no assigned Mainnet or Testnet activation height. It would require a later network upgrade that activates before the existing ZCG stream expires. The proposal therefore represents a prospective consensus change, not an approved redirection of funds. ZEC’s maximum supply, historical block validity, existing transaction formats and the 12% coinholder stream would remain intact under the draft, while its eventual deployment would depend on the network-upgrade process following Zcash’s established upgrade governance.
