Pith Number

pith:CKXCKISM

pith:2012:CKXCKISMQRWCXYJ6BIBEJDGE2O

not attested not anchored not stored refs pending

Spatial and temporal dynamics of infected populations: the Mexican epidemic

Mario A. Rodriguez-Meza

arxiv:1204.2761 v1 · 2012-04-12 · 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{CKXCKISMQRWCXYJ6BIBEJDGE2O}

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	2026-05-18T03:42:23.851917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12ae25224c846c2be13e0a02448cc4d3aceca91262331581ee66f17196ee0f99

Aliases

arxiv: 1204.2761 · arxiv_version: 1204.2761v1 · doi: 10.48550/arxiv.1204.2761 · pith_short_12: CKXCKISMQRWC · pith_short_16: CKXCKISMQRWCXYJ6 · pith_short_8: CKXCKISM

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/CKXCKISMQRWCXYJ6BIBEJDGE2O \
  | 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: 12ae25224c846c2be13e0a02448cc4d3aceca91262331581ee66f17196ee0f99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd4459868e94465649e81f27aad55c140c7a86683ce2a6acdbf26ac8baffd7b1",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2012-04-12T15:49:59Z",
    "title_canon_sha256": "0e49f5e0eb62c556229d6edfa3f1f47302e4670aacca9840fd5a5cd9cd2e56f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2761",
    "kind": "arxiv",
    "version": 1
  }
}