Pith Number

pith:6CFDLKW7

pith:2020:6CFDLKW7M5YUSXU3MN6QVWTM7W

not attested not anchored not stored refs pending

Public Health Policy: COVID-19 Epidemic and SEIR Model with Asymptomatic Viral Carriers

Weijie Pang

arxiv:2004.06311 v1 · 2020-04-14 · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6CFDLKW7M5YUSXU3MN6QVWTM7W}

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	2026-07-05T00:54:50.750879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f08a35aadf6771495e9b637d0ada6cfda4dc59c3d55c5afe92788fee1d1f8e07

Aliases

arxiv: 2004.06311 · arxiv_version: 2004.06311v1 · doi: 10.48550/arxiv.2004.06311 · pith_short_12: 6CFDLKW7M5YU · pith_short_16: 6CFDLKW7M5YUSXU3 · pith_short_8: 6CFDLKW7

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/6CFDLKW7M5YUSXU3MN6QVWTM7W \
  | 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: f08a35aadf6771495e9b637d0ada6cfda4dc59c3d55c5afe92788fee1d1f8e07

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef7787ef066910d944f588198f98e2cf1bae12dd852136525f62a56afb3043cc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2020-04-14T05:33:41Z",
    "title_canon_sha256": "caa57f7066a97682ced333f57215fe9db4f155bb2ecd7bf136974c831459071b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.06311",
    "kind": "arxiv",
    "version": 1
  }
}