Pith Number

pith:RH2YICYM

pith:2009:RH2YICYMDRU2JBMOQDIUUEEASA

not attested not anchored not stored refs pending

Extinction in Lotka-Volterra model

Alex Kamenev, Matthew Parker

arxiv:0905.3728 v1 · 2009-05-22 · q-bio.PE · cond-mat.stat-mech

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RH2YICYMDRU2JBMOQDIUUEEASA}

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	2026-05-18T02:13:37.956799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89f5840b0c1c69a4858e80d14a1080900ffbf6116c696fb7148d3cee463697d3

Aliases

arxiv: 0905.3728 · arxiv_version: 0905.3728v1 · doi: 10.48550/arxiv.0905.3728 · pith_short_12: RH2YICYMDRU2 · pith_short_16: RH2YICYMDRU2JBMO · pith_short_8: RH2YICYM

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/RH2YICYMDRU2JBMOQDIUUEEASA \
  | 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: 89f5840b0c1c69a4858e80d14a1080900ffbf6116c696fb7148d3cee463697d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f50a2246d9f71e52db9d154f44aec64799e54229d73cac65574362ef2e36e7a",
    "cross_cats_sorted": [
      "cond-mat.stat-mech"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2009-05-22T17:21:06Z",
    "title_canon_sha256": "5c3d1863d5057aa3c8a16f577fb8462f626e98e74048ae61420e3676e6cb78e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.3728",
    "kind": "arxiv",
    "version": 1
  }
}