HCS Score
Red Line Violations
Research Opinion, Not a Fatwa
These are absolute prohibitions in Islamic finance. If any red line is triggered, the asset is automatically classified as HARAM.
Ecosystem Riba Exposure
Not directly or indirectly connected to interest generating mechanisms
Gambling / Betting
No gambling or betting mechanism
Haram Industry
Not involved in haram industry
Based on Red Line Screening and HCS Scoring.
Haram / Non Compliant
This cryptocurrency is evaluated as Haram for investment and use because the asset demonstrates material Sharia compliance concerns within the CoinStudy HCS framework.
Explanation
This asset shows significant concerns related to Sharia compliance, financial structure, or speculative design.
Reviewed by
CoinStudy Shariah Board
May 2022 will remain one of the darkest months in cryptocurrency history.
TerraUSD was one of the largest stablecoins in the world. The Terra ecosystem it lived on was worth tens of billions of dollars. Anchor Protocol was offering 20% APY to depositors and attracting enormous capital flows. Billions of ordinary investors, including many from Muslim-majority countries, had deposited their savings based on the promise of stable returns.
Then it collapsed. Over the course of a few days, UST lost its dollar peg and entered a death spiral. LUNA, the token designed to absorb the instability, hyperinflated to near zero. Tens of billions of dollars in value was destroyed. Ordinary investors around the world lost their life savings.
For Muslim investors, the Terra collapse is not just a financial cautionary tale. It is a case study in what happens when financial products built on prohibited foundations fail catastrophically.
We ran LUNC through the full CoinStudy Halal Crypto Standard (HCS) methodology in a fresh June 2026 review. Here is the complete picture.
LUNC fails the CoinStudy HCS Sharia red-line screening. Three red lines are triggered, specifically Ecosystem Riba Exposure, Guaranteed Interest, and Synthetic Interest Products, resulting in an automatic Haram classification with no further scoring.
The collapse of 2022 did not create these compliance problems. They were built into the ecosystem's fundamental design from the beginning. And critically, as our fresh 2026 review confirms, the USTC algorithmic mechanism remains active on the chain today.
Terra Classic (LUNC) is the original Terra blockchain that powered TerraUSD, which was an algorithmic stablecoin designed to maintain a one-dollar value through a mint-and-burn mechanism linking LUNA and UST.
Following the catastrophic collapse of the UST peg in May 2022, the original Terra chain was renamed Terra Classic. A separate new Terra chain was launched. The original token became LUNC, continuing under community governance with token burning initiatives and ecosystem revival efforts.
Understanding what Terra Classic was and what it currently is, are both essential to understanding why it receives a haram classification. The assessment is based on the ecosystem's foundational economic architecture and its current active mechanisms, not only on its post-collapse state.
CoinStudy committed to conducting a fresh review of Terra Classic following a respectful scholarly challenge from Alhassan Bah, Founder of Nufaa Technologies, who raised legitimate questions about whether our classification was based on historical events or current functionality.
We investigated the current state of the Terra Classic chain as it exists in June 2026 and found the following.
The USTC algorithmic stablecoin mechanism remains active on the chain. It was not decommissioned after the collapse. The community's stated primary strategic goal in 2026 continues to be re-pegging USTC to one dollar. Development priorities including the Market Module 2.0 reactivation are specifically designed to improve token issuance control in support of this re-pegging goal.
This is not a historical concern. The mechanism that creates the most serious compliance concerns in this analysis is operating today.
Unlike asset-backed stablecoins that hold reserves of cash or commodities, TerraUSD maintained its dollar peg through algorithmic mechanisms.
The system used a mint-and-burn relationship between LUNA and UST. When UST traded above one dollar, arbitrageurs could burn LUNA to create new UST, profiting from the price difference and increasing UST supply to push the price back down. When UST traded below one dollar, arbitrageurs could burn UST to create LUNA, reducing UST supply to push the price back up.
This mechanism worked during periods of growing demand. It was catastrophically fragile during periods of contracting demand as the May 2022 collapse demonstrated with devastating results.
The same mechanism remains active on Terra Classic today. The community seeks to make it work again at scale.
Understanding Terra Classic's compliance failure requires understanding Anchor Protocol specifically because Anchor was the primary driver of Terra's growth and the clearest manifestation of its compliance problems.
Anchor Protocol offered depositors approximately 20% APY on UST deposits. This yield attracted enormous capital flows. By early 2022, a significant majority of all UST in existence was deposited in Anchor earning this yield.
Let us be direct about what 20% APY on deposited stablecoins is. It is an extremely high guaranteed return on deposited capital. It is interest. There was no genuine productive economic activity generating this yield. It was subsidized by the Terra ecosystem itself, creating an artificial yield that was fundamentally unsustainable.
This yield-driven growth model, which attracted deposits with guaranteed high returns, created circular demand for UST, and depended on continuous growth to maintain the system, is the core compliance failure. The entire Terra ecosystem's growth was built on a product that functioned as an interest-bearing deposit facility paying exceptional guaranteed returns.
Some scholarly assessments of Terra Classic focus on the LUNC token in isolation and evaluate it as a community-governed Proof of Stake blockchain where staking rewards come from network validation rather than interest.
CoinStudy acknowledges this scholarly approach and respects the conclusions it reaches. Our methodology evaluates tokens within their full ecosystem context rather than in isolation.
The USTC algorithmic stablecoin mechanism is not a legacy artifact of the collapsed ecosystem. It is an active and intended feature of the current Terra Classic chain. The community's primary stated goal is to make this mechanism succeed in re-pegging USTC to one dollar. The development roadmap is oriented around this objective.
A token whose fundamental value proposition depends on the success of an active algorithmic stablecoin re-pegging project inherits the compliance concerns of that mechanism. LUNC's staking rewards from Proof of Stake validation would be more defensible in isolation. But LUNC cannot be evaluated in isolation from the ecosystem whose revival it is designed to power.
The USTC algorithmic mechanism creates synthetic financial instrument characteristics that trigger the Ecosystem Riba Exposure red line. The mechanism mints and burns LUNC to algorithmically maintain USTC's dollar peg, creating structured financial engineering that involves interest-like characteristics in how value is transferred between participants.
The community's primary goal of re-pegging USTC means the entire ecosystem's value proposition is tied to making this mechanism succeed at scale. The Ecosystem Riba Exposure concern is not historical. It is current and active.
Anchor Protocol's explicitly advertised approximately 20% APY on UST deposits constitutes guaranteed interest income on deposited capital. This is one of the most explicit guaranteed interest products CoinStudy has encountered in its analysis series.
Users deposited capital. They received ongoing guaranteed percentage returns. The return was explicitly advertised as a specific APY. That is interest-bearing deposit income regardless of how it was technically generated. The fact that the yield was funded by ecosystem subsidies rather than productive economic activity made it more concerning, not less.
The financial instruments created within the Terra ecosystem including UST yield products and algorithmic stablecoin positions function as synthetic interest-bearing financial instruments. The algorithmic mechanism that maintains USTC's value creates financial relationships that resemble synthetic fixed-income instruments in their economic structure.
LUNC fails three red lines. Under the CoinStudy HCS framework a single failure results in automatic Haram classification. Three failures makes this result definitive.
Ecosystem Riba Exposure — ❌ Failed. The USTC algorithmic mechanism remains active and the community's primary goal is re-pegging USTC to one dollar, creating structural connection to synthetic interest-like financial engineering at the ecosystem level.
Guaranteed Interest — ❌ Failed. Anchor Protocol's explicitly advertised approximately 20% APY on UST deposits constituted guaranteed interest income on deposited capital, one of the most explicit guaranteed interest products in our analysis series.
Synthetic Interest Products — ❌ Failed. UST yield products and algorithmic stablecoin positions function as synthetic interest-bearing financial instruments in their economic structure.
Gambling and Betting — ✅ Passed.
Haram Industry — ✅ Passed.
Three red lines failed. Layer 2 scoring is skipped entirely.
Overall Result: Haram — Red Line Violations
CoinStudy acknowledges that other respected Islamic finance scholars and advisory firms including Sharlife Sdn Bhd and Sheikh Azam have assessed Terra Classic's current functionality and reached different conclusions.
Their approach evaluates the LUNC token in isolation, focusing on its role as a governance and network utility token for a community-governed Proof of Stake blockchain. Under this approach, native staking rewards from block production are not Riba, which is correct, and the burn mechanism does not constitute gambling or prohibited transactions, which is also correct.
The difference between their conclusion and CoinStudy's is methodological, not factual. CoinStudy evaluates tokens within their full ecosystem context. A token cannot be fully separated from the primary value proposition of the ecosystem it powers. When that ecosystem's primary value proposition is tied to an active algorithmic stablecoin re-pegging project, the token inherits the compliance concerns of that mechanism.
This is a genuine area of scholarly disagreement that Muslim investors deserve to understand clearly rather than simply accepting or rejecting either verdict.
CoinStudy's assessment would change if one of two things happened.
First, if the USTC algorithmic stablecoin mechanism were formally decommissioned from the Terra Classic chain, removing the primary compliance concern from the ecosystem. A Terra Classic that operated purely as a community-governed Proof of Stake blockchain without an active algorithmic stablecoin mechanism would be evaluated very differently.
Second, if the community formally shifted its primary stated goal away from USTC re-pegging toward other permissible utility, and this shift were reflected in actual development activity rather than just stated intentions.
If either condition is met, CoinStudy will conduct another fresh review and publish the updated result transparently.
The Terra collapse deserves reflection beyond the compliance classification because it illustrates something important about the relationship between Islamic finance principles and financial system design.
Islamic finance prohibits Riba, Gharar, and Maysir not as arbitrary restrictions but as accumulated wisdom about the kinds of financial structures that create instability, harm, and exploitation.
Anchor Protocol's 20% APY on algorithmic stablecoin deposits was Riba but it was also an economically unsustainable structure. The artificial yield attracted capital that the ecosystem could not genuinely support, creating a fragile dependence on continuous growth. When that growth slowed, the system collapsed catastrophically.
Muslim investors who recognized these concerns and avoided Terra on compliance grounds were protected from one of the most devastating collapses in crypto history. Islamic finance principles and sound financial risk management converged toward the same conclusion, not by coincidence, but because both reflect genuine economic truth.
Before investing in any algorithmic stablecoin ecosystem, ask yourself honestly.
Does the stablecoin maintain its peg through algorithmic mechanisms rather than real asset reserves? Does the ecosystem offer high guaranteed APY yields on deposits that lack clear sustainable economic foundation? Is the stability of the ecosystem dependent on continuous growth and maintained market confidence rather than genuine asset backing? Do you understand the death spiral risk inherent in algorithmic stablecoin designs under sustained selling pressure? Would a qualified Islamic scholar recognize the yield products in this ecosystem as resembling Riba?
For Terra Classic, these questions are not hypothetical. They were answered definitively by the events of May 2022. And the mechanism at the heart of these questions remains active on the chain today.
Terra Classic (LUNC) is classified as Haram / Non-Compliant under the CoinStudy Halal Crypto Standard.
Three Sharia red lines are triggered, specifically Ecosystem Riba Exposure, Guaranteed Interest, and Synthetic Interest Products, resulting in automatic Haram classification. The ecosystem was fundamentally built around algorithmic stablecoin infrastructure, synthetic monetary mechanisms, and high-yield deposit products through Anchor Protocol that created direct and serious Riba exposure.
Our fresh June 2026 review confirms that the USTC algorithmic mechanism remains active and the community's primary goal remains re-pegging USTC to one dollar. The compliance concerns are not historical artifacts. They are current structural realities.
CoinStudy acknowledges the genuine scholarly disagreement from respected firms including Sharlife Sdn Bhd. The difference is methodological. We evaluate tokens within their full ecosystem context. That methodology produces this conclusion.
We will conduct another fresh review if the USTC mechanism is decommissioned or if the ecosystem's direction fundamentally changes.
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Disclaimer: This analysis is provided for educational and research purposes only. This analysis is based on guidance from CoinStudy's HCS Shariah Board members. CoinStudy does not issue personal fatwas or financial advice. Please consult a qualified Islamic scholar for individual guidance.
Guaranteed Interest
No guaranteed interest obligations
Synthetic Interest Products
No synthetic interest instruments
3 Red Lines Failed
This asset is automatically classified as HARAM.
