Pith Number

pith:GLQ3LV5Q

pith:2016:GLQ3LV5QAII77FNE5MWC2ZMM76

not attested not anchored not stored refs pending

An Algebraic Solution for the Kermack-McKendrick Model

Alexsandro M. Carvalho, Sebastian Gon\c{c}alves

arxiv:1609.09313 v2 · 2016-09-29 · physics.soc-ph · physics.bio-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{GLQ3LV5QAII77FNE5MWC2ZMM76}

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	2026-05-18T00:54:52.569311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32e1b5d7b00211ff95a4eb2c2d658cffa3e04f439b148c0809b48c6992dc4ce9

Aliases

arxiv: 1609.09313 · arxiv_version: 1609.09313v2 · doi: 10.48550/arxiv.1609.09313 · pith_short_12: GLQ3LV5QAII7 · pith_short_16: GLQ3LV5QAII77FNE · pith_short_8: GLQ3LV5Q

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/GLQ3LV5QAII77FNE5MWC2ZMM76 \
  | 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: 32e1b5d7b00211ff95a4eb2c2d658cffa3e04f439b148c0809b48c6992dc4ce9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55fd9a839ced1b5b2ab3d6f0dce5c460419136bba58f3c19701d8deeb746526a",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2016-09-29T12:15:30Z",
    "title_canon_sha256": "ca68584d1baa962475454896cdc9602ddbba0c2d15d0f4aa9baf08e9f9b2f20c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.09313",
    "kind": "arxiv",
    "version": 2
  }
}