Canonical: https://builtonarc.app/guides/is-arctreasury-on-arc-legit # ArcTreasury (arctreasury.biz): an Unverified claim Updated 2026-09-02. ArcTreasury.biz advertises a T-bill-backed USDC/EURC vault on Arc. Here's exactly what could and couldn't be confirmed as of 2 Sep 2026. **Unverified claim** — ArcTreasury publicly claims a T-bill-backed yield product on Arc; Built on Arc cannot observe an issuer, custodian, contract, or audit behind it. Cleared if and when one is confirmed. > ArcTreasury (arctreasury.biz) advertises a vault where users deposit USDC and EURC and "earn real yield backed by US Treasury bills on Arc Network." As of 2 Sep 2026, Built on Arc could not confirm a named team, an issuer, a custodian, a contract address, an audit, or a documentation page for the claim. This guide is not a verdict — it lists the specific checks that failed to return a result, and what would have to be true for the underlying claim to actually hold. Built on Arc does not cover yield products — that's arcyield.app's beat. This page covers status and verification only. **Builds on Arc:** Claims a T-bill-backed USDC/EURC yield vault on Arc; issuer, custodian and contract are unconfirmed. · **Role:** claims Issues — unconfirmed; see Unverified claim flag above · **Category:** Stablecoins & Tokenized Assets → RWA platforms · [Project page](/project/arctreasury) ## Why this page goes deeper than most Most pages in this series report what is and isn't confirmed. This one does the same, slower, because ArcTreasury sits on patterns worth understanding generically. ## Check one: the domain arctreasury.biz uses the `.biz` top-level domain — an open, unrestricted registration class with no vetting, historically popular with both established small businesses and low-effort sites because it's cheap and less contested than `.com`. It tells you nothing about the project's status by itself: unlike a `.gov`, `.bank`, or a registered-entity `.com` with matching corporate filings, a `.biz` domain carries none of the weak positive signals of institutional backing or regulatory registration. Read it as one input, not a standalone disqualifier. ## Check two: who is behind it Built on Arc searched for a named team, company, or legal entity behind ArcTreasury and found none — not on the site, not in press coverage, not in Circle's Alliance Directory, and not in any general Arc-ecosystem roundup that covers dozens of smaller projects. An unregistered, unnamed team is not proof of anything specific — early-stage teams sometimes stay pseudonymous for ordinary reasons — but it means there is no accountable party to identify if the product fails to deliver, and no track record to check. ## Check three: the yield claim itself The site's stated pitch is "earn real yield backed by US Treasury bills." For that claim to hold, several things would need to be true — none confirmed by Built on Arc as of 2 Sep 2026: - **A named issuer** — an entity that holds or has claim to Treasury-bill exposure and stands behind the yield. - **A named custodian** — who holds the underlying assets, under what legal structure (trust, fund, direct holding). - **A prospectus or offering document** — the disclosure a regulated fund or note would carry: redemption terms, fees, risk. - **A regulatory registration** — tokenized Treasury products typically require some form of securities or fund registration. None of these were found. The phrase "T-bill vault" borrows the vocabulary of a regulated product — Treasury bills are a specific, regulated government instrument — without, as far as Built on Arc could confirm, the accompanying regulatory infrastructure that comparable tokenized-Treasury products (such as those built on BlackRock's BUIDL) typically disclose. ## Check four: contract, audit, liquidity No contract address was found — expected in part because Arc mainnet does not launch until 16 September 2026, so nothing can yet be verified live on Arc regardless of domain. No audit report was found, and no information on whether any liquidity or reserve backing is locked, or by whom. ## What this page is not saying This page does not state or imply that ArcTreasury is fraudulent. It states which checks — named team, issuer, custodian, prospectus, registration, audit, published contract — did not return a verifiable result as of 2 Sep 2026. Absence of evidence on one date is not evidence of wrongdoing; it means the burden is on the project to publish the missing pieces before anyone treats the yield claim as established. ## Where the yield claim actually belongs Built on Arc's directory does not cover yield, APY, or earn products — that belongs to ArcYield: [https://arcyield.app/?utm_source=builtonarc&utm_medium=guide&utm_campaign=arc](https://arcyield.app/?utm_source=builtonarc&utm_medium=guide&utm_campaign=arc). This page covers ArcTreasury's status and verification only. ## How to check it yourself Look up the domain's registration history and age. Search for the exact phrase "arctreasury.biz" alongside "scam," "review," and "prospectus" and read what turns up. Ask, before depositing anything: who is the named issuer, who holds the Treasury-bill exposure, and where is the prospectus? If those three questions don't have public, checkable answers, that is itself the finding — regardless of what any vault dashboard shows. Built on Arc's general walkthrough covers the same checklist for any Arc project: [/guides/how-to-read-an-arc-project-entry](/guides/how-to-read-an-arc-project-entry). Project entry: [/project/arctreasury](/project/arctreasury). Sources: - [Arc Treasury — Earn Yield on Stablecoins](https://arctreasury.biz/) ## Questions **Is ArcTreasury a scam?** Built on Arc does not make that call — see "What this page is not saying" above. **Does a `.biz` domain mean a project is untrustworthy?** No, not by itself. It means the site carries none of the weak positive signals that a more contested or vetted TLD might suggest. Treat it as one input, not a verdict. **Who actually holds the Treasury bills behind the claimed yield?** Not named as of 2 Sep 2026. No custodian or issuer was found in any source Built on Arc could locate. **Is ArcTreasury the same thing as arcyield.app?** No. ArcYield is a separate, unaffiliated directory covering yield and earn products across Arc, including tokenized-Treasury exposure generally: https://arcyield.app/?utmsource=builtonarc&utmmedium=guide&utmcampaign=arc. **Can I check ArcTreasury's contract on-chain right now?** No usable contract address was found, and Arc mainnet itself does not launch until 16 September 2026. **What would make this claim verifiable?** A named issuer and custodian, a prospectus or equivalent disclosure document, evidence of applicable regulatory registration, a published and audited contract, and confirmation of how any locked liquidity is secured.