Introducing Monero's Ethereum-Killer: Tari

But Tari was not just Monero with token support. It was not "Ethereum but private." The protocol had a different idea: privacy sliders.

Token creators would set the privacy level. A game issuer might choose maximum privacy, hiding all asset transfers. A security issuer facing SEC oversight would choose zero, making every transaction traceable. Each issuer would adjust the slider to their needs.

"You've got more complex things like the level of privacy," Spagni said at the conference. "Something that might happen is an in-game token or an in-game asset. The issuer might not want the movement of that asset to be visible because that's private information. So they'll go maximal privacy there. But then you've got someone who might use the platform to issue a security token and the SEC might have a mandate that says if you do that, it's got to be traceable. And [with Tari] they can say this asset has no privacy. So the ability to set that privacy slider, dependent on what exactly you need for your own regular regulatory burden as an issuer, is very important. There's no one size fits all. I think it's critical to provide that level of functionality as extensively as possible so that the issuer is never constrained."

Ethereum did not offer this choice. Once you deployed a token, it had fixed privacy rules. Every transaction published to the ledger. Everyone saw everything. Tari let creators decide.

The case for privacy in digital assets extends beyond secrecy. Real-world collectibles do not broadcast ownership. Buy a painting at an auction with cash and no public record exists. Even a credit card purchase stays private unless you publish it yourself. A CryptoKitty was different. The blockchain was transparent by default, so buying a rare digital cat exposed you to the world.

CryptoKitties had become valuable enough to matter. Collectors paid thousands for rare ones. That value came from scarcity. But the public ledger revealed who owned what. A collector with an expensive collection broadcast that to anyone watching the network. Theft became possible. Harassment became possible. A privacy setting would preserve what mattered—how many kitties existed—without revealing individual owners.

The case ran deeper than collectibles. Public companies disclosed officer trades. When Intel's CEO sold stock in the months before Specter and Meltdown became public, the SEC eventually published those sales in official filings. Media outlets reported on it. Investors learned the CEO had sold before the disasters hit. That was valuable information. But the market had to wait for official channels to publish it. A Tari token configured for transparency would surface executive trades in real time, on the blockchain, without gatekeepers or delays.

Spagni built the team from strength. Naveen Jain, a co-founder, had started multiple companies in entertainment and was mining Monero when few others saw potential. Dan Teree, also a co-founder, had built Ticketfly, a ticketing platform. Pandora purchased Ticketfly for $450 million. His experience with tickets suggested an obvious application for Tari.

But the team's real focus was user experience. That was unusual in crypto. Protocol developers tended to be strong engineers and weak at design.

"The unfortunate thing is that people with UX talent often are working on projects that are pretty soft where it's easy to abstract things away," Spagni said. "The hard stuff, the protocol-level stuff like Lightning, people with UX talents aren't attracted to. They are amazing developers, and completely terrible at UX. So we're trying to find a way to do both."

The obsession with experience was not luxury. It was essential. Ethereum had exploded because deploying a token became trivial. One button. A contract went live. Developers copied a template, changed a few variables, and had their token. Simple. Tari could have superior privacy, more robust cryptography, a more elegant protocol. None of it mattered if a user had to open the command line and type a dozen commands to buy a concert ticket. If Tari was hard to use, the privacy sliders and the Monero foundation would not save it.

The timeline was ambitious. Spagni estimated two years to consumer launch. The team had raised private funding to accelerate development but had not done an ICO. No presales. No discount tokens for early backers. No referral programs promising exponential returns. They had the capital, the builders, and the time.

Monero had prepared Spagni for this work. He inherited a coin with problems and fixed them. He maintained it through ups and downs. He steered it away from politics and toward stability. The market rewarded that stability. Now he wanted to apply the same rigor to Ethereum's space.

The odds were unclear. Ethereum had network effects. Thousands of tokens existed on it. Developers worked on it daily. Moving them would take more than privacy sliders and good design. But Spagni had done the unthinkable before. With robust privacy tools, a flexible protocol, and a genuine commitment to user experience, Tari had a real chance at becoming the next major platform.