Pith Number

pith:FFVLY2UE

pith:2020:FFVLY2UEPD7Z5ODG7SLHQLZA4H

not attested not anchored not stored refs pending

Infection Kinetics of Covid-19: Is Lockdown a Potent Containment Tool?

Amit K Chattopadhyay, Bidisha Kundu, Debajyot Choudhury, Goutam Ghosh, Sujit Kumar Nath

arxiv:2009.05280 v1 · 2020-09-11 · q-bio.QM · physics.soc-ph · 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{FFVLY2UEPD7Z5ODG7SLHQLZA4H}

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	2026-07-05T01:34:44.034363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

296abc6a8478ff9eb866fc96782f20e1e9eb82cc93a3587a043fb64f0dbd45cc

Aliases

arxiv: 2009.05280 · arxiv_version: 2009.05280v1 · doi: 10.48550/arxiv.2009.05280 · pith_short_12: FFVLY2UEPD7Z · pith_short_16: FFVLY2UEPD7Z5ODG · pith_short_8: FFVLY2UE

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/FFVLY2UEPD7Z5ODG7SLHQLZA4H \
  | 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: 296abc6a8478ff9eb866fc96782f20e1e9eb82cc93a3587a043fb64f0dbd45cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac923090bf24dc9921bd86db479870774bc4ea6f0c52cf6588cb58e13cb4a1e5",
    "cross_cats_sorted": [
      "physics.soc-ph",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2020-09-11T08:29:03Z",
    "title_canon_sha256": "d4a451dd2c860eb6cdf60d5f897b2dad903ffa30da1c9b6be6c0cdac1e416778"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.05280",
    "kind": "arxiv",
    "version": 1
  }
}