Pith Number

pith:2F6PG5C4

pith:2011:2F6PG5C4C7WKRMOSER3XZCQ2PW

not attested not anchored not stored refs pending

A graphical theory of competition on spatial resource gradients

Alexei B. Ryabov, Bernd Blasius

arxiv:1102.4793 v1 · 2011-02-23 · q-bio.PE · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2F6PG5C4C7WKRMOSER3XZCQ2PW}

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	2026-05-18T04:28:07.340045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d17cf3745c17eca8b1d224777c8a1a7da2752c483f7b6d9d2b45958c415f7459

Aliases

arxiv: 1102.4793 · arxiv_version: 1102.4793v1 · doi: 10.48550/arxiv.1102.4793 · pith_short_12: 2F6PG5C4C7WK · pith_short_16: 2F6PG5C4C7WKRMOS · pith_short_8: 2F6PG5C4

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/2F6PG5C4C7WKRMOSER3XZCQ2PW \
  | 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: d17cf3745c17eca8b1d224777c8a1a7da2752c483f7b6d9d2b45958c415f7459

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08385d05a0b27ea8e189fd10f6607ad71750bb3371788678c17235ac676a9ce0",
    "cross_cats_sorted": [
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2011-02-23T16:50:08Z",
    "title_canon_sha256": "ec1ff757990f4da0bb2867634dba2553d83ce0a7c9504b9303268d06cef79707"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.4793",
    "kind": "arxiv",
    "version": 1
  }
}