Pith Number

pith:RTPTK2JZ

pith:2012:RTPTK2JZXLFCYOZCDW7DGYNZYW

not attested not anchored not stored refs pending

An exactly solvable coarse-grained model for species diversity

Amos Maritan, Andrea Rinaldo, Samir Suweis

arxiv:1206.6590 v1 · 2012-06-28 · q-bio.PE · physics.bio-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RTPTK2JZXLFCYOZCDW7DGYNZYW}

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	2026-05-18T01:56:41.003733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8cdf356939baca2c3b221dbe3361b9c5a490a69e87ae3badb99b642af75e989b

Aliases

arxiv: 1206.6590 · arxiv_version: 1206.6590v1 · doi: 10.48550/arxiv.1206.6590 · pith_short_12: RTPTK2JZXLFC · pith_short_16: RTPTK2JZXLFCYOZC · pith_short_8: RTPTK2JZ

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/RTPTK2JZXLFCYOZCDW7DGYNZYW \
  | 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: 8cdf356939baca2c3b221dbe3361b9c5a490a69e87ae3badb99b642af75e989b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11cf5832eada13e8155c420fe05627ceb84fad0c2b475ed36857927e1c963862",
    "cross_cats_sorted": [
      "physics.bio-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2012-06-28T08:29:27Z",
    "title_canon_sha256": "0b63fc448d04309f940be4f484e79228cdcad38ce436115c9ed953cb26642571"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.6590",
    "kind": "arxiv",
    "version": 1
  }
}