Pith Number

pith:5H3D5237

pith:2020:5H3D5237ZT4ZLQCV7MDMT4H7HX

not attested not anchored not stored refs pending

COVID-19: Strategies for Allocation of Test Kits

Arpita Biswas, Prateek Jain, Shruthi Bannur, Srujana Merugu

arxiv:2004.01740 v1 · 2020-04-03 · cs.AI · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5H3D5237ZT4ZLQCV7MDMT4H7HX}

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	2026-07-05T00:52:53.967915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9f63eeb7fccf995c055fb06c9f0ff3ddfd2910564c4426f1bbf63e6c031cb2d

Aliases

arxiv: 2004.01740 · arxiv_version: 2004.01740v1 · doi: 10.48550/arxiv.2004.01740 · pith_short_12: 5H3D5237ZT4Z · pith_short_16: 5H3D5237ZT4ZLQCV · pith_short_8: 5H3D5237

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/5H3D5237ZT4ZLQCV7MDMT4H7HX \
  | 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: e9f63eeb7fccf995c055fb06c9f0ff3ddfd2910564c4426f1bbf63e6c031cb2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4f2767d7c6f3e8f9aab84ebf2a2fcc5f96f20213ff90924b53739b4d9c69d58",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2020-04-03T19:02:59Z",
    "title_canon_sha256": "6e8e56053c330eb1498756f8f88212957ba25038f3538be9268d0e2dafa73457"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.01740",
    "kind": "arxiv",
    "version": 1
  }
}