CSPRI BlockchainDRR Research What is blockchain and why it matters for DRR March 9, 2021 Neil H. Wasserman nhwassermangwu.edu Tel. 202-556-1501 Blockchain structure - Linked list NIST Blockchain Technology Overview Draft NISTR 8202
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CSPRI Blockchain–DRR Research What is blockchain and why it matters for DRR March 9, 2021
Neil H. Wasserman nhwasserman@gwu.edu Tel. 202-556-1501<br>
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Blockchain structure - Linked list NIST Blockchain Technology Overview Draft NISTR 8202 Hash-based Data Stability Validation by incentivized consensus Closure (e.g., for transaction sets) Replication of linked data blocks and operational rules<br>
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Bitcoin versus Blockchain Currency Bitcoin Blockchain Physical and virtual objects Transactions Business logic - Smart contracts Ownership Conditional relationships Diadic transfer Multi-party and social Single instance / closure Transaction chain<br>
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No one owns the transaction record
Multiple sources of validation Distributed ledger Consensus algorithms Proof of Work, Proof of Stake
Only one valid chain
Resolution of competing chains Technical Business
Pervasive rule-based contracts and verification No central administrator to assure trust There is no “god”
There are many angels Smart contracts Complex conditions for transactions
Not in original blockchain, Ethereum Blockchain as a Service Payments
Data
Services
Treatment regimens Provenance Transferability Identity /trust Availability / confidentiality Ownership – Virtual objects Anonymization Rule-based transactions (Smart Contracts) Trust
Non-repudiation Blockchain capabilities<br>
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Blockchain for DRR processes Addressing 1) Risk, 2) Governance, 3) Resilience, 4) Preparedness Prevention / Mitigation Preparedness Response Recovery Prevention / Mitigation Time Timescale Longer Shorter Blockchain Applications DRR Impact Asset registration
Personal / entity identity
Data access, permissioning, validation
Transaction records and conditions (supply chain)
Contracts management Funds and outcomes tracking
Health data infrastructure – disease and vaccination tracking
Predictive modeling – disaster risk mapping
Carbon accounting and trading
Infrastructure certification
Resource allocation, distribution, and balancing
Monitoring – GPS and IoT data integration and security Incidents
Fire
Flood
Famine
Earthquake
Pandemic<br>
