Pith Number

pith:2PYWFRTF

pith:2020:2PYWFRTFJ3TAXHWRUAAUBEEA3T

not attested not anchored not stored refs pending

Covid-19 epidemic under the K-quarantine model: Network approach

B. Kahng, Hoyun Choi, K. Choi

arxiv:2010.07157 v2 · 2020-10-14 · 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{2PYWFRTFJ3TAXHWRUAAUBEEA3T}

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	2026-07-05T03:56:14.356979Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3f162c6654ee60b9ed1a001409080dcd1b6d40869b3f49d9db2b256a4bb7d7b

Aliases

arxiv: 2010.07157 · arxiv_version: 2010.07157v2 · doi: 10.48550/arxiv.2010.07157 · pith_short_12: 2PYWFRTFJ3TA · pith_short_16: 2PYWFRTFJ3TAXHWR · pith_short_8: 2PYWFRTF

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/2PYWFRTFJ3TAXHWRUAAUBEEA3T \
  | 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: d3f162c6654ee60b9ed1a001409080dcd1b6d40869b3f49d9db2b256a4bb7d7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb4f16907035fc33927ef77efb7ef37aaaecff27fe3e23c1f1fff3986194a8b2",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2020-10-14T15:16:29Z",
    "title_canon_sha256": "3d170a062b3033c0bbec3f0d74639ff0d5796db66012397dc2d27ae49ec55dc9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.07157",
    "kind": "arxiv",
    "version": 2
  }
}