2022-05-09
/ 2022-05-12
Algorithmic stablecoin depeg and collapse of associated reserve token
Stablecoin operator
Algorithmic
- Event
- A dollar-pegged algorithmic stablecoin lost its peg over the course of approximately three days. The associated reserve token, which the stabilization mechanism relied upon for arbitrage-driven price restoration, declined in market value from prior trading ranges to a fraction of one cent within the same period. Holders who attempted to exit the stablecoin during the period received progressively less than the nominal one-dollar redemption value.
- Affected layer
- Algorithmic stablecoin operator and the associated reserve-token protocol.
- Structural exposure
- The stablecoin's redemption value was maintained by an arbitrage-driven stabilization mechanism that depended on the continued market value of a separate token. Redemption was not backed by a fixed-rate claim on an underlying asset. When the secondary market for the reserve token became disorderly, the stabilization mechanism could not restore the peg, and the nominal redemption value was not honored.
- MBA contrast
- The DEA construction does not rely on a stabilization mechanism, arbitrage incentive, or secondary market. Each unit carries its backing BCH inside the UTXO that represents it. Redemption is a standard P2PKH spend that releases the backing satoshis at the fixed rate set at genesis. The category of failure exemplified — peg loss due to a market-dependent stabilization mechanism — is absent because no such mechanism exists in the construction.
- Inapplicable to MBA
- Yes. The dependency is not present in the bytecode.
Sources SEC Cornerstone Research report on stablecoin events 2022; United States District Court for the Southern District of New York filings in subsequent civil actions; Reuters and Financial Times coverage of the depeg period (May 2022); public block explorer data on the affected protocols.
2022-06-12
/ 2022-07-13
Custodial lending platform pause on withdrawals and subsequent bankruptcy
Custodial lender
Centralized platform
- Event
- A custodial crypto-lending platform announced a pause on customer withdrawals, swaps, and transfers between accounts, citing extreme market conditions. Approximately one month later, the same entity filed for Chapter 11 bankruptcy protection in the United States Bankruptcy Court for the Southern District of New York. Customer balances became claims in the bankruptcy proceeding rather than withdrawable assets.
- Affected layer
- Custodial lender holding pooled customer deposits as a counterparty.
- Structural exposure
- Customer redemption rights depended on the continued solvency and operational discretion of a single custodial counterparty. When the counterparty paused operations and subsequently filed for bankruptcy protection, customer claims to deposited assets transitioned from immediate redemption rights to general unsecured creditor claims, subject to the priority order established by bankruptcy law.
- MBA contrast
- A DEA holder is not a depositor and there is no custodial counterparty. The backing BCH is held inside the UTXO controlled by the holder, not by any platform, lender, or third party. Redemption is performed by the holder broadcasting a standard transaction signed by their own private key. No party can pause, freeze, or convert the redemption right into a bankruptcy claim, because no party holds the backing.
- Inapplicable to MBA
- Yes. There is no custodian to become insolvent.
Sources Case No. 22-10964, In re Celsius Network LLC et al., United States Bankruptcy Court for the Southern District of New York; Examiner's report filed January 2023; contemporaneous Reuters and Bloomberg reporting on the withdrawal pause and bankruptcy filing.
2022-08-08
Sanctions designation of autonomous on-chain smart contract addresses
Sanctions authority
Treasury OFAC
- Event
- The United States Department of the Treasury's Office of Foreign Assets Control designated a set of Ethereum smart contract addresses associated with a privacy-mixing protocol on the Specially Designated Nationals and Blocked Persons list. The designation prohibited U.S. persons from interacting with the listed addresses. The smart contracts themselves continued to execute autonomously, since the bytecode does not have an administrative function to halt operation.
- Affected layer
- Sanctions-enforcement authority and developers of an autonomous deployed contract.
- Structural exposure
- The episode illustrated an asymmetry between the addressable parties available to a regulator and the autonomously operating contract. The contract has no party empowered to halt it. Enforcement therefore reached only the secondary parties — developers, interface operators, and end users — while the bytecode continued to execute. Litigation followed concerning the scope of OFAC authority over autonomous code.
- MBA contrast
- The DEA construction shares the autonomous-contract property the episode described — there is no administrative function, no party to enjoin from operating the contract, and no upgrade path. The contrast is structural rather than oppositional: the same property that complicated enforcement in this case is, in the MBA construction, the same property that prevents the construction from imposing arbitrary changes on its holders. The autonomy cuts in both directions. A holder cannot have their position arbitrarily altered by any party — including the founder.
- Inapplicable to MBA
- Partially. The MBA construction can be the subject of regulator interest. The MBA construction cannot be the subject of regulator-induced behavioral change at the bytecode level, because no party possesses the authority to alter the bytecode.
Sources U.S. Department of the Treasury Press Release, "U.S. Treasury Sanctions Notorious Virtual Currency Mixer Tornado Cash," August 8, 2022; Van Loon v. Department of the Treasury, United States Court of Appeals for the Fifth Circuit (subsequent litigation); contemporaneous Reuters and Bloomberg coverage.
2022-11-11
Major centralized exchange Chapter 11 filing following liquidity disclosure
Centralized exchange
Custodial platform
- Event
- One of the largest centralized cryptocurrency exchanges by trading volume filed for Chapter 11 bankruptcy protection following a period of public disclosures concerning the relationship between the exchange's customer-deposit accounts and an affiliated trading firm. Customer withdrawal requests had been suspended in the days preceding the filing. Subsequent reporting by the court-appointed restructuring officer documented commingling of customer funds and material discrepancies in record-keeping.
- Affected layer
- Centralized exchange operating as custodian of customer deposits and as affiliate of a trading firm.
- Structural exposure
- Customer holdings were recorded as exchange-side database entries rather than verifiable on-chain positions controlled by the customer. The custodial model permitted internal use of customer assets in ways the customer could not observe on chain. The discrepancy between recorded customer balances and actual asset reserves remained undetectable to customers until the moment withdrawal requests could no longer be honored.
- MBA contrast
- A DEA holder's position is not a database entry on any platform's ledger. The position is a UTXO on the BCH network, controlled by the holder's private key, observable on any public block explorer, with backing satoshis held within the UTXO itself. There is no custodian whose books can disagree with the on-chain state, because the on-chain state is the position. An exchange listing a DEA does not custody it in any sense relevant to redemption — the holder's redemption right is exercised against the contract, not against the exchange.
- Inapplicable to MBA
- Yes. There is no custodial layer whose books can diverge from on-chain reality.
Sources Case No. 22-11068, In re FTX Trading Ltd. et al., United States Bankruptcy Court for the District of Delaware; Declaration of John J. Ray III in Support of Chapter 11 Petitions and First Day Pleadings, filed November 17, 2022; Securities and Exchange Commission complaint filed December 2022; contemporaneous Reuters, Bloomberg, and Financial Times reporting.
2023-03-10
Regional commercial bank closure and federal receivership
Commercial bank
Insured deposit institution
- Event
- A California state regulator closed a regional commercial bank holding deposits substantially in excess of the federal deposit insurance limit applicable to most depositor categories, and the Federal Deposit Insurance Corporation was appointed receiver. Deposit access was temporarily restricted. Federal authorities subsequently invoked a systemic-risk exception to extend protection to uninsured depositors. The bank's stablecoin-issuer customers experienced reserve-asset access disruptions during the period before the exception was announced, with downstream effects on the peg of at least one major dollar-denominated stablecoin.
- Affected layer
- Commercial bank holding reserve assets for stablecoin issuers; deposit-insurance authority; federal banking regulators.
- Structural exposure
- The stablecoins affected during the period maintained their peg through reserve assets held at commercial banking partners. The redemption value of the stablecoin therefore depended on the continued operational solvency of the partner bank, the applicable deposit-insurance coverage at that bank, and the willingness of federal authorities to extend extraordinary protection in the event of bank failure. The dependency chain extended at least three layers beyond the stablecoin holder.
- MBA contrast
- The DEA construction does not hold reserves at a banking partner. The backing for each unit is BCH satoshis held inside the UTXO that represents the unit, on a public network with no commercial-bank intermediary in the redemption path. The redemption path of a DEA holder traverses zero banking institutions and depends on zero deposit-insurance arrangements. A banking event analogous to the one described would have no mechanism by which to affect the DEA holder's redemption right.
- Inapplicable to MBA
- Yes. There is no banking partner in the redemption path.
Sources Federal Deposit Insurance Corporation Press Release, "FDIC Creates a Deposit Insurance National Bank of Santa Clara to Protect Insured Depositors of Silicon Valley Bank," March 10, 2023; Joint Statement by Treasury, Federal Reserve, and FDIC, March 12, 2023; California Department of Financial Protection and Innovation order taking possession; contemporaneous Reuters, Wall Street Journal, and Financial Times reporting on stablecoin reserve impacts.