- Zcash developers released Udon on Monday, a component first built for the proposed Project Tachyon scaling upgrade, into Zakura Common, a shared cryptography library that handles the mathematical work behind creating and verifying private transactions. Project Tachyon leader Sean Bowe and Dev Ojha Valar Group jointly develop Zakura.
- Earlier work on Common produced a substantial engineering gain, cutting the time to create a transaction proof from more than three seconds to under 200 milliseconds in some tests. Udon has been released as software but the upgrade has not been activated on the Zcash network.
- Bowe and Ojha have set a long-term target of more than 50,000 payments a second. They estimate that at that rate, with current cryptography, each Zcash node would need to take in more than 500 megabytes of data every second, which is why Tachyon aims to combine proofs from many payments into one.
- Actual usage is running far below that and falling. ZecStats data show the network averaged about 11,700 transactions involving shielded funds a day over the seven days to September 21, roughly one every seven seconds, and that average dropped to about 6,200 a day over the seven days to September 28.
What Happened?
A Zcash wallet must prove a private payment is valid without revealing the parties or the amount, and computers running the network verify that proof. If private payments become far more common, those computers face substantially more data to process. Udon moves some of the calculations required for Tachyon into Common, letting developers build on code that has already been optimised, though creating a combined proof requires more memory than the current approach.
Why It Matters?
The gap between the engineering target and observed demand is roughly five orders of magnitude. At about 6,200 shielded transactions a day the network processes something under one tenth of a transaction per second, against a design goal of more than 50,000 per second. Building capacity for that volume is a bet on demand that does not currently exist, and the more telling figure is the direction: shielded usage nearly halved week over week, from 11,700 to 6,200 a day. Capacity work of this kind is usually a response to congestion, and there is none. More striking is what this says about the token. Zcash rose more than 17% in mid-September and produced $56 million of liquidations on a roughly $23 billion market capitalisation during that move, while the actual use of its privacy feature was declining. Price and network usage have decoupled, which means the rally was driven by leverage and speculation rather than by adoption of the function the protocol exists to provide. For anyone holding ZEC on a thesis about private payments, the usage data does not support it. The engineering deserves credit on its own terms, since reducing proof generation from over three seconds to under 200 milliseconds is a genuine achievement and a precondition for any consumer-scale private payment system. But there is a regulatory dimension that grows with success rather than shrinking. Scaling private transactions to tens of thousands per second would intensify scrutiny at a time when authorities are reporting sharply higher crypto flows to sanctioned entities, and privacy assets already face exchange listing constraints in several jurisdictions.
What Next?
Watch whether shielded transaction counts recover from the 6,200 daily average or continue falling, since that is the only measure of whether the privacy feature is being used. Activation of the Tachyon upgrade on the live network is the next technical milestone, and Udon is a component release rather than a deployment. Track whether the proof combining approach delivers the node bandwidth reduction the team describes, because the 500 megabyte per second figure is what makes the current design unworkable at scale. On the market side, watch whether ZEC price action continues to move independently of network usage, as that divergence tells you what is actually driving the token. Regulatory developments around privacy assets, particularly exchange listing decisions in the US and Europe, remain the largest external risk to the thesis.
Affected Tickers and Coins: ZEC COIN
Source: CoinDesk
