Cadena Bitcoin Loan Settlement: A Real-World Walkthrough
Cadena Bitcoin6 min read·Just now--
Explore how Cadena Bitcoin’s upcoming launch is redefining Bitcoin-backed lending through DLC infrastructure, self-custody, and transparent settlement.
Bitcoin lending has historically suffered from one major problem: trust. For years, Bitcoin holders seeking liquidity were forced to choose between two difficult options. They either sold their BTC entirely — losing long-term exposure and triggering taxable events — or deposited their assets into custodial lending platforms that operated behind opaque balance sheets and hidden leverage structures.
Cadena Bitcoin is preparing to launch with a fundamentally different architecture. Instead of relying on intermediaries to manage collateral and enforce settlements, Cadena Bitcoin uses Discreet Log Contracts (DLCs) directly on Bitcoin’s base layer to create a lending system where settlement conditions are pre-signed before funding occurs. The result is a Bitcoin-backed credit framework designed around transparency, self-custody alignment, and deterministic settlement.
This article walks through a real, live worked example of a Bitcoin-backed loan on Cadena Bitcoin, calibrated to live market conditions at BTC = $80,000, and referenced to an actual on-chain contract that was funded on November 10, 2025 and settled on May 9, 2026.
The Core Mechanic: What a Cadena Loan Actually Is
A Cadena loan is not a bank loan. No institution assesses your creditworthiness, holds your collateral, or has any discretion over your funds at any point during the contract. A Cadena loan is a direct contract between two Bitcoin holders — a borrower and a lender — enforced by a Discreet Log Contract (DLC) on the Bitcoin base layer. Cadena holds no private key. Settlement is pre-signed at the moment of funding, covering every possible BTCUSD price outcome. The contract enforces itself.
There is also an important structural nuance. A Cadena loan does not provide cash directly to the borrower. It provides synthetic Bitcoin exposure — a mechanism that preserves the borrower’s long-term Bitcoin position while they separately sell a portion of their BTC on their own exchange to access the dollars they need. Two distinct pools of Bitcoin are involved: collateral locked in the DLC contract, and an off-ramp sale executed independently. Understanding this distinction is essential to understanding why the product works — and why it is categorically different from anything a centralised lender offers.
“Cadena holds no key. Settlement is pre-signed at funding for every possible BTCUSD outcome. The contract enforces itself on Bitcoin’s base layer.”
A Walkthrough of A $3 Million Loan, One-Year Term on Cadena Bitcoin
The worked example uses the following parameters, all of which reflect live Cadena product conditions:
BTC Spot at Funding
$80,000
Loan Request
$3,000,000 cash
Term
1 Year
LTV
50% (lender protected to a 50% BTC drop)
Interest Rate
12.00% per annum
Cadena Fee
1.00% (borrower side, built into collateral)
Borrower All-In Cost
13.00%
Structure
3 contracts × $1,000,000 each
Price Feed
DLCP Oracle
The all-in borrower cost of 13% — 12% interest plus the 1% Cadena fee — is fixed at funding. There are no variable rate adjustments, no hidden fees, and no margin calls at any point during the one-year term. The Cadena fee is paid in BTC from the borrower’s collateral contribution at funding and settlement, with no cash deduction from the proceeds.
Day 0 — Funding: What the Borrower Deploys
On Day 0, three Cadena contracts fund simultaneously — one per $1 million tranche. Per contract, the borrower (the trust in this example) commits 15.625 BTC ($1.25M) and the lender commits 12.5 BTC ($1M), creating a combined pool of 28.125 BTC per contract. Across three contracts, the total pool is 84.375 BTC. Every settlement outcome — at every possible Bitcoin price — is pre-signed before any Bitcoin moves.
Component: Collateral across 3 contracts (125% of loan)
Bitcoin at $80K: 46.875 BTC
USD Value: $3,750,000
Component: Off-ramp BTC sold for cash
Bitcoin at $80K: 37.500 BTC
USD Value: $3,000,000
Total Bitcoin Deployed by Trust
Bitcoin at $80K: 84.375 BTC
USD Value: $6,750,000
Separately, and independently of the DLC contracts, the borrower sells 37.5 BTC on their own exchange for $3,000,000 in cash. This is the off-ramp — the mechanism by which dollars actually reach the borrower. After Day 0, the borrower holds 46.875 BTC locked in the three contracts and zero BTC unlocked. Their cash need of $3 million has been met. Their Bitcoin stack — all 84.375 BTC — remains accounted for, either locked in contracts or converted to the cash they needed.
Day 365 — Settlement: Three Possible Outcomes
At maturity, the DLCP Oracle attests to the BTCUSD price at the settlement timestamp. The pre-signed Contract Execution Transaction (CET) for that price broadcasts automatically. The lender receives their dollar-denominated target of $3.36 million (principal $3M plus 12% interest = $360,000), and Cadena takes its $30,000 fee — both paid in Bitcoin from the collateral pool. The trust receives whatever remains.
BTC at Maturity: $120,000 (+50%)
Lender + Cadena (BTC): 28.25 BTC
Trust Receives Back: 56.125 BTC
Outcome: Trust profits from appreciation
BTC at Maturity: $80,000 (flat)
Lender + Cadena (BTC): 42.375 BTC
Trust Receives Back: 42.0 BTC
Outcome: Cost fixed at $390K regardless
BTC at Maturity: $40,000 (−50%)
Lender + Cadena (BTC): ≈84.375 BTC (max)
Trust Receives Back: ≈0 BTC
Outcome: Collateral fully consumed at 50% drop
The key insight from the settlement information is directional. When Bitcoin appreciates, the lender’s fixed-dollar target translates to fewer sats — and the borrower receives more back. When Bitcoin declines, the lender needs more sats to hit their dollar target — and the borrower receives less. At a 50% BTC decline, the collateral pool is exactly sufficient to cover the lender and Cadena’s obligations, and the borrower receives nothing back. This is the risk the borrower accepts at funding — and it is the reason the 50% LTV exists: to protect the lender against precisely this scenario.
The Clean Cost View: What the Loan Actually Costs
To express the loan’s true cost in straightforward terms, the worked example assumes the borrower buys back the BTC they need to restore their original 84.375 BTC stack at maturity, at whatever price BTC is trading.
BTC at Maturity: $120,000 (+50%)
BTC to Buy Back: 28.25 BTC
Buyback Cost (USD): $3,390,000
Net Cash Position: −$390K (fixed cost)
BTC at Maturity: $80,000 (flat)
BTC to Buy Back: 42.375 BTC
Buyback Cost (USD): $3,390,000
Net Cash Position: −$390K (fixed cost)
BTC at Maturity: $40,000 (−50%)
BTC to Buy Back: 84.375 BTC
Buyback Cost (USD): $3,375,000
Net Cash Position: −$375K (lender absorbs gap)
The result is striking in its simplicity. Regardless of whether Bitcoin is up 50%, flat, or down 50% at maturity, the dollar cost of the loan is fixed at $390,000 — exactly 13% of the $3 million borrowed. The borrower converts a short-term cash need into a fixed-dollar financing cost, maintains their long-term Bitcoin exposure, and never faces a margin call, a liquidation event, or a counterparty requesting additional collateral during the one-year term.
This fixed-cost structure is not available on any centralised lending platform. Variable interest rates, margin calls, and liquidation cascades are features of custodial lending models — not of a mathematically enforced DLC contract that settles once, at maturity, based on a publicly verifiable oracle price.
Live Proof: A Real On-Chain Contract
This is not a theoretical exercise. A Cadena loan contract funded on November 10, 2025 and settled on May 9, 2026 is fully verifiable on the Bitcoin blockchain. The settlement transaction hash — 95bf1377f4709235656bbaafa4afe454f91e905f8bb2dfe3e2bd1b619e5aab7d — can be viewed on mempool.space. Every funding input, every settlement output, every fee paid is publicly readable by anyone with an internet connection. This is what on-chain transparency means in practice: not a dashboard you trust, but a blockchain you can verify independently.
Take the Next Step
The failures of previous lending platforms demonstrated that Bitcoin-backed credit requires stronger architecture, clearer settlement mechanisms, and deeper alignment with self-custody principles.
Cadena Bitcoin is launching with precisely those objectives in mind. Its DLC-based framework introduces a model where lending agreements are enforced directly on Bitcoin’s base layer, settlement conditions are transparent from inception, and users maintain stronger control over their assets throughout the process.
Cadena Bitcoin is live on the App Store and Google Play. Register at cadenabitcoin.com, download the Signer App, and access the first non-custodial Bitcoin credit market on earth. Whether you are a borrower seeking liquidity, a lender seeking yield, or a referrer building a perpetual 50% fee-share income stream — the platform is open. No banks. No margin calls. Just Bitcoin, math, and a contract that enforces itself.
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