Pith Number

pith:H5QM7OCY

pith:2013:H5QM7OCYRHO4MWNF2OPBRIMV33

not attested not anchored not stored refs pending

Existence of periodic solutions for the periodically forced SIR model

Guy Katriel

arxiv:1307.5050 v1 · 2013-07-18 · q-bio.PE · math.DS · nlin.CD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H5QM7OCYRHO4MWNF2OPBRIMV33}

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	2026-05-18T02:45:31.998495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f60cfb85889ddc659a5d39e18a195dec9d9ecdf9cdfdc38a0422b7f7b922491

Aliases

arxiv: 1307.5050 · arxiv_version: 1307.5050v1 · doi: 10.48550/arxiv.1307.5050 · pith_short_12: H5QM7OCYRHO4 · pith_short_16: H5QM7OCYRHO4MWNF · pith_short_8: H5QM7OCY

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/H5QM7OCYRHO4MWNF2OPBRIMV33 \
  | 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: 3f60cfb85889ddc659a5d39e18a195dec9d9ecdf9cdfdc38a0422b7f7b922491

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fcc9ff96f08b39e876545301b2a785e375c8129d47cf2fca8059cf2525bcbc7",
    "cross_cats_sorted": [
      "math.DS",
      "nlin.CD"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2013-07-18T19:17:28Z",
    "title_canon_sha256": "277be06c506f3a2514a554b5e1cd9e444b452e473d2220eacebfcc82ae264904"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5050",
    "kind": "arxiv",
    "version": 1
  }
}