# TrueUSD (TUSD) Quantum Readiness Report

> TrueUSD has a QRI score of 0/100 and is assessed at Stage 0 (Unassessed / No Evidence) with high evidence confidence.

Evaluation date: 2026-06-05. Review status: draft. Evaluated scope: Fiat-backed ERC-20/TRC-20/BEP-20 stablecoin token with multi-chain native and bridged deployments; token-level evaluation including admin/governance keys, bridge dependencies, and host-chain cryptographic inheritance..

TrueUSD (TUSD) is a fiat-collateralized stablecoin with ~$494M market cap deployed as a standard ERC-20/TRC-20/BEP-20 token across multiple host chains. TUSD has no custom cryptography and inherits all transaction security from its host chains (Ethereum, TRON, BNB Smart Chain, Avalanche), all of which rely exclusively on quantum-vulnerable ECDSA for spend authorization. The token's admin functions—including minting, burning, pausing, and contract upgrades—are controlled by classical ECDSA addresses (proxyOwner on Ethereum) with long-exposed public keys. No quantum risk assessment, cryptographic inventory, PQC implementation, migration roadmap, or mitigation design exists. The project scores 0/100 across all five QRI categories. Stage 0 (Unassessed / No Evidence) applies because the project has not published even a basic quantum risk assessment. The ~$494M in circulating value plus admin-controlled supply integrity remain entirely unprotected against quantum key-recovery attacks. The original issuer (Archblock) is in Chapter 11 bankruptcy, and current operator Techteryx has published no quantum-related plans.

## Core resources

- [TrueUSD QRI report](https://qrindex.org/projects/true-usd/): Human-readable assessment with score, stage, evidence, blockers, risks, and assurance notes.
- [TrueUSD structured report data](https://qrindex.org/projects/true-usd/report.json): Complete report as JSON for deterministic machine processing.
- [QRI methodology](https://qrindex.org/methodology/): Scoring model, evidence handling, readiness stages, confidence, assurance, and report status.
- [All QRI project reports](https://qrindex.org/llms.txt): Score-ranked index of every published project assessment.
- [TrueUSD official website](https://tusd.io/): Project-maintained website.
- [TrueUSD source repository 1](https://github.com/trusttoken/trueUSD): Project source code referenced by QRI.



## Evidence sources

- [Evidence source 1](<https://tusd.io/>): Public source cited by the TrueUSD QRI assessment.
- [Evidence source 2](<https://tusd.io/docs/trueusd-white-paper-202602.pdf>): Public source cited by the TrueUSD QRI assessment.
- [Evidence source 3](<https://github.com/trusttoken/trueUSD>): Public source cited by the TrueUSD QRI assessment.
- [Evidence source 4](<https://etherscan.io/address/0x0000000000085d4780b73119b644ae5ecd22b376>): Public source cited by the TrueUSD QRI assessment.
- [Evidence source 5](<https://github.com/trusttoken/trusttokens/blob/master/contracts/Proxy/OwnedUpgradeabilityProxy.sol>): Public source cited by the TrueUSD QRI assessment.
- [Evidence source 6](<https://coinmarketcap.com/currencies/trueusd/>): Public source cited by the TrueUSD QRI assessment.
- [Evidence source 7](<https://www.coingecko.com/en/coins/true-usd>): Public source cited by the TrueUSD QRI assessment.
- [Evidence source 8](<https://app.tusd.io/terms-of-use>): Public source cited by the TrueUSD QRI assessment.