USDT0

We reject USDT0 because the gap between its terms and its code adds risk without adding benefit. USDT0 is Tether’s omnichain USDT, built on LayerZero’s OFT standard and operated by Everdawn Labs Limited. Canonical USDT locks in an Ethereum adapter contract, and USDT0 mints 1:1 on the destination chain. It carries every USDT issuer and jurisdiction risk while adding an operator whose corporate relationship to Tether is assumed, not confirmed, plus the LayerZero DVN messaging-layer dependency that this registry separately rejects. Worse, USDT0’s own Terms of Service describe no blacklist or freeze power, yet the deployed contract on Ink Chain includes functions to block addresses and destroy their held funds. This is a real control in the code that the user-facing terms do not disclose. Actual redemption rights depend on Tether’s own ”verified customer” gate, not a permissionless unlock, so a USDT0 holder gets worse redemption certainty than a direct USDT holder, not better.

Review triggers: events that reopen the verdict
• Everdawn Labs’ corporate relationship to Tether Limited is confirmed via a primary filing or Tether’s own disclosure
• USDT0’s Terms of Service are amended to explicitly disclose the blacklist and fund-destruction authority present in the deployed contract code
• A named chain’s OFT deployment is audited independently of Tether and LayerZero’s own claims, with the report published
• A proposed-size redemption from burned USDT0 to unlocked Ethereum USDT is demonstrated end to end without invoking Tether’s verified-customer gate for an unaffiliated holder
• Any confirmed depeg, minting irregularity, or DVN-layer compromise affecting USDT0 specifically

Watched nightly: a warning on its venues or files, or a cited document that changes, reopens the memo. The first confirmation is due 2026-11-17.

The research file

Mechanism

USDT0 uses a lock-and-mint design built on LayerZero’s Omnichain Fungible Token standard and operated by Everdawn Labs Limited (usdt0.to). Canonical USDT locks in an OAdapterUpgradeable contract on Ethereum mainnet, and the protocol mints an equal amount of USDT0 1:1 on the destination chain. Moving USDT0 between non-Ethereum chains burns it on the source and mints it on the destination through LayerZero messaging. Unlocking the original USDT requires bridging back to Ethereum and redeeming through the adapter. It is live on 14 or more chains, including Arbitrum, Berachain, HyperEVM, Plasma, and TON, where TON alone carries roughly $152M of USDT0 supply per the protocol’s own analytics.

Control and the terms-versus-code gap

Everdawn Labs Limited administers the protocol and its Terms of Service. Independent legal review states that Everdawn can be assumed to be a Tether-affiliated entity, but public filings confirm no direct corporate relationship to Tether or any named parent. Everdawn is stated as not registered with FinCEN, and USDT0’s terms do not address MiCA authorization, so it retains USDT’s existing EU non-compliance posture. Most important, USDT0’s Terms of Service describe no blacklist or freeze power, but the deployed TetherTokenOFTExtension contract on Ink Chain includes functions to add or remove addresses from a blocked list and destroy funds tied to a blocked address. The code contains a major control that the terms a holder reads omit. That is a transparency failure whether or not anyone has used the power.

Incident record

We identified no USDT0-protocol-level exploit or depeg. One application-level incident is related but distinct. A HyperEVM DeFi exploit drained 214,125 USDT0 alongside USDC and USDH from an application holding those assets. That was a failure of the application, not USDT0’s own mint, lock, or messaging mechanism. We did not independently confirm this detail against a primary post-mortem in this pass, so it should be treated as unverified. An Immunefi bug bounty has been active since 2025-01-30 and is explicitly scoped to vulnerabilities affecting USDT redemption on Ethereum.

Exit and redemption

USDT0’s own terms give no explicit redemption guarantee or procedure. In practice, a holder burns USDT0 on a supported chain to unlock the underlying USDT on the Ethereum adapter. Tether’s own terms govern the actual right to redeem that USDT and restrict redemption to ”verified customers.” A USDT0 holder’s final cash-out path therefore runs through Tether’s KYC’d process, no matter how many chains the token has crossed. That right is narrower than the right from holding canonical Ethereum USDT directly, and the extra dependency layers provide no added benefit.

Comparison

Compared with canonical Ethereum USDT, USDT0 adds trust in the LayerZero DVN messaging layer, which this registry reviewed separately and rejected after the April 2026 infrastructure compromise. It also adds Everdawn Labs as an intermediate operator with no confirmed corporate relationship to Tether, plus freeze and fund-destruction functions that its terms do not disclose. These are more dependency layers for exposure to the same underlying issuer and the same eventual KYC-gated redemption right. This review found no case in which USDT0 is preferable to canonical USDT for a client who could hold either.

Sources

The claims above trace to these. Where a number could not be independently verified, the thesis says so.

• USDT0 technical documentation · primary · accessed 2026-08-17
  Supports: OFT mechanism, lock-and-mint flow, adapter architecture
• LlamaRisk — regulatory pressure on USDT and legal features of USDT0 · secondary · accessed 2026-08-17
  Supports: Everdawn Labs, freeze and blacklist code versus terms, redemption rights, BVI law
• Immunefi — USDT0 bug bounty · primary · accessed 2026-08-17
  Supports: bounty scope, live since 2025-01-30
• USDT0 analytics · primary · accessed 2026-08-17
  Supports: per-chain supply figures
• PR Newswire — Bybit expands USDT0 support to HyperEVM, Corn, and Berachain · secondary · accessed 2026-08-17
  Supports: chain expansion timeline

Inherited controls

The research above describes the protocol layer. Every position also inherits the asset it holds and the chain it settles on. The layer with the most administrative power sets the position’s effective control; that describes control, not quality or suitability.