The Philosophical Debt of Ethereum and the Future of DeFi Security: a usage-priced insurance layer + funded white-hat economy

TLDR; I have a video cover most of this article if you prefer to listen https://x.com/codephobic/status/2045127803897516132

DeFi security is in crisis: AI has collapsed the attacker’s cost of finding exploits. The industry confidence feels at record low, another major hack could kill Defi forever. The time is ticking for the industry to find solution to move forward.

1. Ethereum’s philosophical debt

The crisis isn’t accidental. It’s the bill coming due for a debt Ethereum has been carrying from the start: a philosophical debt.

We got rid of centralized power - and with it, we threw out the order-enforcement function they provides. No chargeback, no oder enforcement. Code is Law was the first attempt at a replacement, and it did not survive real-world contact with upgradability and smart-contract vulnerabilities. Since then, we have simply stopped trying.

The result is a half baked system causing sever mis-alignment in participants, which almost always encourages malicious/destructive acts eventually leading to a dystopia with plenty of historical experiments in both politics and communities as evidences. In fact this is already the case if we consider the notorious name Defi and crypto carries atm.

Sure, more audits, no gov keys, privacy layer, circuit breakers will help, but none addresses the fundamental issue and correct the misaligned incentives in the space. Symptoms of dystopia will come out in other ways evetually (e.g. crypto kiddnapping currently 1 in 2.4 days in France).

2. An older answer rooted in Anarcho-Capitalism

The coherent replacement for the missing function is not a new central primitive - it’s a permissionless solution carefully crafted based on game theory and incentive design. Specifically, the one Dr. Murray Rothbard described in his theory of Anarcho-Capitalism: private agencies as the layer that recovers from, and enforces against bad behavior, in the absence of the state.

The full Rothbardian theory is more controversial than I need it to be for this argument. I’m using the narrower observation: in any society without a central enforcer, something has to price risk, make victims whole, and pursue recovery. That is not a nice to have, it is a must to have, the last missing piece for Defi and Ethereum.

3. USd8 as a working instantiation

USd8.fi is my attempt to specify and build this primitive in crypto-native form. It is a stablecoin with 2 major functions baked in - insurance + enforcement

Insurance primitive

• by using Usd8, user accumulates a block time weighted cover score for free, computed based on Shapley value from cooperative game theory, which can be used to claim insurance for any covered Defi protocols

• Usd8 independently vets and offers coverage to Defi protocols, on a per LP token basis

• in case of hack, user transfer hacked LP tokens in exchange for upto 80% coverage from Usd8’s Cover Pool contract, capped by the Cover Pool size

• Cover Pool is an open vault incentived by Usd8’s collateral rev, APY fixed at around 15-30%, consist of multiple assets (particularly high liquid alts with low yield sources)

Cover Score

Each user’s Cover Score is computed as
For a holder h, an asof block T, and a registry of qualifying tokens with admin-configured weights:

wᵢ(h) = Σ_token weight_token × ∫₀ᵀ balance_token(h, t) dt

The raw weight wᵢ is then converted to a proportional Cover Pool share:

φᵢ = wᵢ × v(N) / Σⱼ wⱼ

…where v(N) is the Cover Pool reserve at claim time and Σⱼ wⱼ is the sum of all holders’ weights. This is the linear-additive Shapley value collapse: efficient, symmetric, null-player-respecting, additive, and pairwise-proportional by construction.

We will also be implementing zk coprocessor for computing cover score to satisfy the walkaway test.

Enforcement primitive

• When a user claims, they forfeit their hacked LP token to Usd8. Usd8 now holds the bag, plays the debt collector role.

• Curated white hat economy as recovery operations - million dollar bounties without expiry, cross-border coordination, shared tooling with hacked teams are funded out of recoveries, with the budget priced so that working with the white-hat side dominates working with the black-hat side.

• Usd8 does not rely on the recovery rev to operate, making any successful recovery a pure bonus

This is the part that distinguishes USd8 from an insurance product. Without the white-hat side, only insurance without enforcement arguably makes the incentive design even worse in Defi. The two must co-designed in theory.

Potential coverage unlocked for Defi in 5 years

We’re modeling pool size as a function of supply growth, reserve yield, and the budget locked at 2.1% of supply based on estimation of 6.5%(rough estimation in reality the number will change).

As shown in the estimation at Y5 if we achieve 20% Tether supply, we could unlock a cover pool size from 2.5-5 Billion per year for Defi. Which will be significant enough to cover most of hacks on major protocols.

Universal coverage for all Ethereum users

We would love to explore a universal coverage for all Eth users(similar to FDIC), if we could work with any significant entities like the EF for some capital commitment either as Usd8 holdings or as Cover Pool LPs, which could enable us to

• offer insurance to all Ethereum address regardless of Usd8 usage history up to a fix amount depending on the capital commitment(similar to FDIC)

• users with Usd8 usage history still gets more cover score on top, meaning more coverage in proportion

Asking for help

We have some know issues in the system we are unable to solve, would appreciate any help and feedback

1. Hacker could double dip - a hacker could get insurance for their position in the hacked defi protocol after their hack. We are unable to find a suitable mitigation, would love any help on this.

2. White hat economy - the general suggestions on design, structure, operations would be greatly appreciated

3. General improvement on system design and incentive alignment

Resources

• usd8.fi

• article - Solve DeFi’s Security Problem Before It’s Too Late: https://x.com/codephobic/status/2030936367505768689

• video - Ethereum’s philosophical debt, anarcho-capitalism, logic behind Usd8.fi, solving the defi security systematic failure. https://x.com/codephobic/status/2045127803897516132

• rick@usd8.fi // telegram @youeattoomuch