CBSA Blockchain Use Case Analysis 5 — Questions and Answers
Question 1: A real estate company wants to tokenize properties so investors can buy fractional ownership. What regulatory challenge is MOST likely to arise in the US?
- Mining regulations for proof-of-work tokens
- SEC classification of property tokens as securities requiring registration and disclosure (Correct answer)
- GDPR compliance for European investors
- Lack of compatible blockchain wallets
Correct answer: SEC classification of property tokens as securities requiring registration and disclosure
In the US, fractional ownership tokens likely qualify as securities under the Howey Test, requiring SEC registration or a valid exemption before they can be offered to investors.
Question 2: A logistics company asks you to compare blockchain versus a traditional EDI system for sharing shipping documents. What is the MOST accurate statement?
- Blockchain always outperforms EDI in speed and cost
- EDI is suitable for bilateral trusted partners, while blockchain adds value when multiple untrusting parties share data (Correct answer)
- Blockchain eliminates the need for any data standards
- EDI provides better immutability guarantees than blockchain
Correct answer: EDI is suitable for bilateral trusted partners, while blockchain adds value when multiple untrusting parties share data
EDI is efficient for established bilateral relationships, but blockchain's shared ledger and consensus mechanism become advantageous when many untrusting parties must synchronize documents without a central hub.
Question 3: An architect is evaluating whether to use on-chain or off-chain storage for a use case involving large medical imaging files (MRI scans). What is the recommended approach?
- Store full MRI images on-chain for maximum immutability
- Store images off-chain and record only cryptographic hashes on-chain (Correct answer)
- Compress images until they fit within transaction limits
- Avoid blockchain entirely due to file size constraints
Correct answer: Store images off-chain and record only cryptographic hashes on-chain
Storing only the cryptographic hash on-chain preserves verifiability and integrity guarantees while keeping large files in cost-efficient off-chain storage like IPFS or encrypted cloud storage.
Question 4: Which supply chain use case benefits MOST from blockchain's multi-party visibility feature rather than its immutability feature?
- Preventing a manufacturer from altering shipment records after a product recall
- Enabling multiple customs agencies, freight forwarders, and shippers to see the same document status in real time (Correct answer)
- Ensuring historical audit trails are preserved for regulatory review
- Proving a product's origin cannot be changed retroactively
Correct answer: Enabling multiple customs agencies, freight forwarders, and shippers to see the same document status in real time
Real-time shared visibility of document status across multiple organizations in different countries is a coordination problem that blockchain's shared ledger solves independently of its immutability.
Question 5: A DeFi protocol wants to offer collateralized loans where smart contracts automatically liquidate positions when collateral falls below a threshold. What critical dependency must the architect address?
- Block confirmation times on the lending blockchain
- Reliable and manipulation-resistant price oracle feeds to trigger liquidations accurately (Correct answer)
- The number of liquidity providers in the pool
- Gas fee variability during high network congestion
Correct answer: Reliable and manipulation-resistant price oracle feeds to trigger liquidations accurately
Liquidation logic depends entirely on accurate asset prices fed by oracles; a manipulated or faulty price feed can cause unjust liquidations or prevent necessary ones, threatening protocol solvency.
Question 6: When performing a blockchain use case feasibility assessment, which question is the MOST important first step?
- What consensus algorithm will provide the highest TPS?
- Do multiple parties with low mutual trust need to share and update a common dataset? (Correct answer)
- Which cloud provider offers the best blockchain-as-a-service pricing?
- How many tokens should be issued at genesis?
Correct answer: Do multiple parties with low mutual trust need to share and update a common dataset?
The foundational question is whether the use case involves multiple parties with insufficient trust to rely on a single party's database — if not, blockchain adds complexity without benefit.
Question 7: A startup is building a blockchain solution for authenticating academic credentials issued by universities. Which stakeholder group would most benefit from this system?
- University admissions officers reviewing incoming freshmen
- Employers and graduate schools verifying claimed credentials instantly without contacting universities (Correct answer)
- Blockchain developers maintaining the network nodes
- Government education ministries setting curriculum standards
Correct answer: Employers and graduate schools verifying claimed credentials instantly without contacting universities
Employers and graduate schools gain the most by being able to cryptographically verify a credential's authenticity in seconds, eliminating weeks of waiting for university verification responses.
CBSA Blockchain Use Case Analysis 5
A real estate company wants to tokenize properties so investors can buy fractional ownership.
What regulatory challenge is MOST likely to arise in the US?