Cardano's Bitcoin DeFi push faces first delivery test

Core Points

Pogun plans to integrate a non-margin credit market, a revenue application, and a Bitcoin bridge to minimize trust on Cardano.

The widely cited figure of $1.6 trillion represents the total market value of Bitcoin, not the money already invested in the project.

Pogun's request to apply for 12.29 million ADA from Cardano Treasury expired because it did not obtain the required approval.

The original second-quarter credit market deadline has passed, but Pogun's official website still describes the platform as "coming soon."

Cardano founder Charles Hoskinson is backing Pogun, a development plan aimed at bringing Bitcoin liquidity into the Cardano credit and income markets.

Project Overview

Led by Omer Husain and the team behind the Input Output open source Cardinal bridging specification, Pogun plans to combine a non-margin credit market, a revenue application, and a Bitcoin bridge that minimizes trust. The core test of the project is not whether Cardano can claim the market value of access to Bitcoin, but whether Pogun can launch a useful credit market that attracts borrowers and lenders and gives BTC holders a reason to use it when bridges are available.

The $1.6 trillion Bitcoin statement requires background explanation

Pogun's official proposal describes Bitcoin as a huge pool of capital that is "almost completely idle." This term refers to Bitcoin's limited use in native decentralized lending and credit markets, rather than to every idle BTC. Some reports have summarized the opportunity as $1.6 trillion, while Pogun's own governance proposal describes Bitcoin as an asset of approximately $1.5 trillion. Either figure is a time-sensitive estimate of the total market value of Bitcoin-as of July 19, 2026, its market value was approximately US$1.3 trillion-and is not the amount Pogun has received or expects to transfer all of it to Cardano. Bitcoin has been used through self-custody, exchanges, corporate finance, exchange-traded products and centralized lending arrangements. Pogun's argument is narrower: only a relatively small portion of capital participates in decentralized credit and income markets, and there is no need to rely on centralized custodians. As a result, Pogun is competing against a subset of Bitcoin holders who are willing to use BTC as collateral or deploy it in financial strategies, rather than integrating the entire market value of Bitcoin into Cardano.

Pogun plans to build the market first and then build bridges

The routing map released by Pogun contains three interrelated stages:

Second quarter of 2026: Non-margin credit market-bilateral, fixed-term loans, without automatic price clearing.

Third quarter 2026: Revenue application-the interface that connects user capital with credit market-based construction strategies.

Q4 2026: Bitcoin Bridge-a minimized trust path to deploy BTC into Cardano applications.

Pogun's stage sequence is well thought out. The credit market is designed to build demand, revenue applications will make the market more accessible, and bridging will introduce Bitcoin as additional collateral and liquidity. This provides the intended use for incoming BTC from the beginning, but also creates dependencies between milestones. Delays or low adoption rates for the first two products may weaken Bitcoin holders 'reasons to use it when bridging launches.

The first routing map deadline has passed

The proposal states that the non-margin credit market will be launched on the Cardano main network in the second quarter of 2026 after completing a formal security audit. The quarter ended on June 30. As of July 19, Pogun's official website still describes the platform as "coming soon." The official project page reviewed in this article does not provide public main-network announcements, deployed contract addresses or completed audit reports. This does not mean that development has stopped, but means that based on the evidence currently available, the second quarter milestone cannot yet be considered publicly delivered. In a June 11 video, Hoskinson said the project was not suspended after failing to secure treasury funds and described Pogun as a business plan that could continue without proposed community investment. His comments suggest development is continuing, but do not confirm that the credit markets have been publicly released or completed the formal audit described in the original proposal.

Cardano Treasury did not fund Pogun

Pogun applied for 12.29 million ADA from Cardano Treasury, which was valued at approximately US$2.95 million when the proposal was prepared. Proposed funding is phased out based on milestones. Subsequent bridging funds will depend on verifiable progress in the credit markets, and the proposal includes provisions to refund unreleased funds if milestones fail, teams are disbanded or bridging proves to be technically infeasible. Pogun also proposes to return 20% of EBITDA to Cardano Treasury until the original investment is repaid, and then permanently return 5% of EBITDA of Cardano-related products to the Treasury. The arrangement was never activated. The on-chain governance action expired on May 24, 2026 and did not receive the support needed for approval. Not a single ADA 12.29 million treasury withdrawal was approved for use in Pogun. The failure of the vote did not recover the funds already granted, but meant that this particular treasury withdrawal was never authorized. If Pogun continues as a privately funded business plan, Cardano Treasury will not automatically receive the proposed revenue share unless a separate agreement is approved in the future.

How Pogun Credit Markets Work

The first product Pogun plans to launch is different from the pooled, over-mortgage markets common in DeFi. The borrower and lender will directly negotiate the terms of the loan, including: the loan amount, interest rate, repayment term, collateral requirements and conditions that constitute a default. Smart contracts will enforce these agreed terms. According to Pogun, the model does not rely on external price predictors or automatic margin calls, which means temporary market fluctuations will not themselves liquidate borrowers 'collateral. This structure is more similar to a fixed-term private credit than a continuously rebalanced pool of DeFi loans. Active loan positions will be expressed through transferable bond tokens issued as Cardano's native assets. This allows lenders to transfer or sell their exposure before the loan matures, laying the foundation for a secondary market for tokenized debt positions. Eliminating automatic price clearing does not mean eliminating financial risk: Borrowers may still default, collateral may depreciate before being recovered, and bond tokens may lack secondary market liquidity. Smart contract vulnerabilities, weak borrower assessments and disputes involving real-world counterparties may pose further risks. The model replaces fast oracle driven clearing risks with longer-term credit, liquidity and execution risks. Its usefulness will depend on the clarity with which these risks are disclosed and priced.

Bridging is "minimizing trust" rather than "no trust"

Pogun's final phase aims to migrate Bitcoin to the Cardano environment while avoiding placing the underlying BTC under the control of a single custodian. The routing diagram describes a 1-of-N security model. Under this design, fraudulent withdrawals can be prevented as long as at least one verifier in the operator set remains honest and available. Although the proposal referred to the component as a BitVM-based bridge, Input Output's later technical note stated that after identifying production limitations in the BitVM family design, the team moved to a custom implementation based on BABE. The architecture described by Input Output combines multiple systems: a custom implementation based on BABE-based (using witness encryption for bitco-side verification); a recursive Halo2 proof (designed to prove Cardano state through the Mithril certificate chain); a Groth16 proof (packaged into a smaller form for use by bitco-side mechanisms); and an N-party transaction graph (designed to support changes from multiple operators and operator sets). From a high-level perspective, the design aims to prove what happened on Cardano, compress that evidence into a smaller cryptographic proof, and make the results verifiable through bitcoin-side mechanisms without having to hand over control of the underlying BTC to a single custodian. Mithril certificates allow external systems to verify authentication information about Cardano without having to independently replay the entire blockchain. Pogun intends to use a certificate built based on this certificate chain to confirm events that occurred on Cardano before accepting the corresponding bitcoin-side operation. The architecture is technically detailed, but the design documentation is not proof of production safety. Bridge implementations can face problems such as software vulnerabilities, certification system failures, operator downtime, configuration errors, and application weaknesses that hold bridge assets. Open code, independent audits, test net performance, and the composition of the verifier set will be as important as cryptographic design. Therefore, it is more accurate to call bridging "minimizing trust" than "no trust required".

Why Cardano believes it fits with Bitcoin's architecture

Cardano believes it is the ideal environment for the financialization of Bitcoin because the two networks share similar accounting structures. As Cardano's official documents explain, both Bitcoin and Cardano use a variant of the Unspent Transaction Output (UTXO) model. Bitcoin transactions consume existing outputs and create new ones, and Cardano extends the structure with its EUTXO model to support programmable conditions, native assets, and smart contracts. This common pedigree can make certain financial logic easier to express between the two systems. But this does not mean that Cardano can directly control native Bitcoin, nor does it mean that other smart contract networks cannot support bitcoin-based applications through different architectures. Pogun still needs a bridge to connect two separate ledgers. Its success will depend on implementation quality, security and market needs, rather than just UTXO connectivity.

Potential impact of Pogun on Cardano and ADA

Pogun is partly about expanding Cardano's relatively small DeFi economy. As of writing, DefiLlama records show the total value of lockings in the Cardano app is approximately $72 million. As a result, even a small number of BTC deployments into the Cardano credit market could be significant relative to the current size of the ecosystem. This possibility should not be confused with a guarantee that billions of dollars will flow in. The suggestion that Pogun could push Cardano's TVL to $10 billion or $15 billion was not supported by formal proposals for the project. Its own forecast scenario for the end of 2027 shows that Pogun's TVL will be approximately US$100 million in a pessimistic scenario; approximately US$450 million in a benchmark scenario; and approximately US$765 million in an optimistic scenario. These are project predictions rather than determinations. Actual adoption will depend on bridge security, borrowing needs, available returns, liquidity, regulatory access and competition from other Bitcoin DeFi platforms. The impact on ADA also needs to be viewed with caution. Under Cardano's current rules, ADA is accepted as a network fee. Pogun activities performed on Cardano may therefore generate additional transaction fee requirements. The extent of this impact will depend on transaction volume, fee levels, and whether the application requires users to hold the ADA directly or abstracts the payment process on their behalf. Idle bridging bitcoins locked in contracts will not generate the same persistent network demand as actively used credit markets. Pogun may add utility to Cardano, but publishing a routing map in itself does not create substantial or sustainable demand for ADA.

The strongest evidence of what will support Bitcoin's DeFi argument

will come from products delivered and measurable usage, rather than Bitcoin's total market value. This argument would become more credible if Pogun provided the following:

·Publicly verifiable mainnet deployment of the credit market;

·A completed independent security audit and accessible report;

·Allow users to verify the system's contract addresses and documents;

·Measurable loan volume, borrower activity and repayment data;

·Earnings application with clear risk disclosures and ongoing deposits;

·A functioning bridging test net followed by an independently audited mainnet release;

·Transparent information about the operators and the assumptions behind the 1-of-N model;

·Measurable growth in BTC collateral, Cardano TVL and transactions after release.

For now, Pogun is still a development project, not evidence that a large amount of Bitcoin liquidity has entered Cardano. The next decisive proof point is the publicly verifiable release of credit markets, as well as the subsequent audit results and measurable lending activity. Only then will the planned revenue tier bridge and Bitcoin have a connectable market.

This document is for information purposes only and does not constitute financial, legal or investment advice.