Pith Number

pith:4ZNREEUQ

pith:2020:4ZNREEUQCS62DZJGJZKFP2O4DN

not attested not anchored not stored refs pending

COVID-19 Contact-Tracing Mobile Apps: Evaluation and Assessment for Decision Makers

Akanksha Bhatia, Andrea Nuzzo, Ashley Mehra, Bikram Khastgir, Bryan Wilson, Deepti Pahwa, Derrick Flakoll, Emelin Flores, Francesco Maria Benedetti, Gabriel Harp, Greg Nadeau, Jay Summet, John Werner, Khahlil Louisy, Kristen Vilcans, Maciej Popielarz, Markus Leopoldseder, Matt Gee, Praneeth Vepakomma, Rachel Barbar, Rajeev Surati, Ramesh Raskar, Robson Beaudry, Sienna Leis

arxiv:2006.05812 v1 · 2020-06-04 · cs.CY · cs.CR · cs.NI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4ZNREEUQCS62DZJGJZKFP2O4DN}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T01:09:17.170324Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e65b12129014bda1e5264e5457e9dc1b758cf0b35f9b515d5136550412a67fce

Aliases

arxiv: 2006.05812 · arxiv_version: 2006.05812v1 · doi: 10.48550/arxiv.2006.05812 · pith_short_12: 4ZNREEUQCS62 · pith_short_16: 4ZNREEUQCS62DZJG · pith_short_8: 4ZNREEUQ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/4ZNREEUQCS62DZJGJZKFP2O4DN \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e65b12129014bda1e5264e5457e9dc1b758cf0b35f9b515d5136550412a67fce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30369103db785798b43c3ce9c453fdba3fae83dae06ae1b0850e5fadcf3c2c5b",
    "cross_cats_sorted": [
      "cs.CR",
      "cs.NI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2020-06-04T02:08:02Z",
    "title_canon_sha256": "196bd241f6ae29adfcdb33df5aba76edbb24ab4628411a7be64120d3b5d2f758"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.05812",
    "kind": "arxiv",
    "version": 1
  }
}