Pith Number

pith:3F554WTF

pith:2011:3F554WTFY4K72JLXEDR6JYH2GD

not attested not anchored not stored refs pending

Steady states in a structured epidemic model with Wentzell boundary condition

Angel Calsina, Jozsef Z. Farkas

arxiv:1112.1724 v1 · 2011-12-07 · math.AP · 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{3F554WTFY4K72JLXEDR6JYH2GD}

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	2026-05-17T23:50:43.089817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d97bde5a65c715fd257720e3e4e0fa30cf6a9ff12d5c58e5953650c26f398f4e

Aliases

arxiv: 1112.1724 · arxiv_version: 1112.1724v1 · doi: 10.48550/arxiv.1112.1724 · pith_short_12: 3F554WTFY4K7 · pith_short_16: 3F554WTFY4K72JLX · pith_short_8: 3F554WTF

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/3F554WTFY4K72JLXEDR6JYH2GD \
  | 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: d97bde5a65c715fd257720e3e4e0fa30cf6a9ff12d5c58e5953650c26f398f4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d11ebeb12605003521f2bdbd6d6a33e2cecb8b554f6443bf3e6edceab36b2b6a",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2011-12-07T22:52:49Z",
    "title_canon_sha256": "39b6c26b8525454046a7c1ffcf161fd4a2192abe1a80fa986382cf0e1c1c2652"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.1724",
    "kind": "arxiv",
    "version": 1
  }
}