Pith Number

pith:XMMA6RTS

pith:2019:XMMA6RTSLKKMJLO6UDMDDFLBF7

not attested not anchored not stored refs pending

Mathematical analysis of complex SIR model with coinfection and density dependence

Samia Ghersheen, Uno Wennergren, Vladimir G. Tkachev, Vladimir Kozlov

arxiv:1905.04920 v1 · 2019-05-13 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XMMA6RTSLKKMJLO6UDMDDFLBF7}

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	2026-05-17T23:46:23.095672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb180f46725a94c4addea0d83195612fe673afce7abcae7db028e84f8493b70b

Aliases

arxiv: 1905.04920 · arxiv_version: 1905.04920v1 · doi: 10.48550/arxiv.1905.04920 · pith_short_12: XMMA6RTSLKKM · pith_short_16: XMMA6RTSLKKMJLO6 · pith_short_8: XMMA6RTS

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/XMMA6RTSLKKMJLO6UDMDDFLBF7 \
  | 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: bb180f46725a94c4addea0d83195612fe673afce7abcae7db028e84f8493b70b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b269c37f28dc08425a3720524c90b09ee6715c76f99f71bb06f5d5a08225514",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2019-05-13T09:00:44Z",
    "title_canon_sha256": "527dd279f825dd6bec7ef105681dbb5a47d52ec9a3bea469be63cd08a6789e30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.04920",
    "kind": "arxiv",
    "version": 1
  }
}