Pith Number

pith:7IWZ6MVI

pith:2013:7IWZ6MVIZECHI7Y7QXXBOQSEV2

not attested not anchored not stored refs pending

Exploring the tug of war between positive and negative interactions among savanna trees: Competition, dispersal, and protection from fire

Em\'ilio Hern\'andez-Garc\'ia, Flora S. Bacelar, Justin M. Calabrese

arxiv:1304.6623 v1 · 2013-04-24 · q-bio.PE · nlin.CG · 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{7IWZ6MVIZECHI7Y7QXXBOQSEV2}

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	2026-05-18T03:00:49.564088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa2d9f32a8c904747f1f85ee174244aebcc523b216fbac509d3a6e1eddba9596

Aliases

arxiv: 1304.6623 · arxiv_version: 1304.6623v1 · doi: 10.48550/arxiv.1304.6623 · pith_short_12: 7IWZ6MVIZECH · pith_short_16: 7IWZ6MVIZECHI7Y7 · pith_short_8: 7IWZ6MVI

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/7IWZ6MVIZECHI7Y7QXXBOQSEV2 \
  | 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: fa2d9f32a8c904747f1f85ee174244aebcc523b216fbac509d3a6e1eddba9596

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfd003b4a71a426d9a462fbd2826802298d8362ea295fd8fde1d96b5fb2c9f4e",
    "cross_cats_sorted": [
      "nlin.CG",
      "physics.bio-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2013-04-24T15:16:33Z",
    "title_canon_sha256": "87a6389c4f2a85bd5524c8de99ee670eb10ae8151f0a84d4a1125502a6617455"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.6623",
    "kind": "arxiv",
    "version": 1
  }
}