Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Encrypted, Anonymized System for Protected Health Information
  Verification Built via Proof of Stake   Digital Health Passes (DHP), systems of digitally validating quarantine and
vaccination status such as the New York IBM Excelsior Pass, demonstrate a
lawful means to approach some benefits offered by "true elimination" treatment
strategies-which focus on the complete elimination of cases instead of
investing more in controlling the progression of the disease-of COVID-19.
Current implementations of DHPs require region-based control and central
storage of Protected Health Information (PHI)-creating a challenge to
widespread use across different jurisdictions with incompatible data management
systems and a lack of standardized patient privacy controls. In this work, a
mechanism for decentralized PHI storage and validation is proposed through a
novel two-stage handshaking mechanism update to blockchain proof-of-stake
consensus. The proposed mechanism, when used to support a DHP, allows
individuals to validate their quarantine and testing universally with any
jurisdiction while allowing their right of independent movement and the
protection of their PHI. Implementational details on the protocol are given,
and the protocol is shown to withstand a 1% disturbance attack at only 923
participants via a Monte-Carlo simulation: further validating its stability.

9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-th
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The categories of this paper are: astro-ph
3
The categories of this paper are: physics