Pith Number

pith:YP2Q7R5P

pith:2020:YP2Q7R5PBTNG4GQGMFDUNLBDTC

not attested not anchored not stored refs pending

A random observation-based management model of population dynamics and its ecological application

Hidekazu Yoshioka, Motoh Tsujimura, Yuta Yaegashi

arxiv:2004.04844 v1 · 2020-04-09 · math.OC · cs.CE · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YP2Q7R5PBTNG4GQGMFDUNLBDTC}

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	2026-07-05T00:54:14.752895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3f50fc7af0cda6e1a06614746ac2398b9ba86f65254c0654a84630e97dc635f

Aliases

arxiv: 2004.04844 · arxiv_version: 2004.04844v1 · doi: 10.48550/arxiv.2004.04844 · pith_short_12: YP2Q7R5PBTNG · pith_short_16: YP2Q7R5PBTNG4GQG · pith_short_8: YP2Q7R5P

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/YP2Q7R5PBTNG4GQGMFDUNLBDTC \
  | 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: c3f50fc7af0cda6e1a06614746ac2398b9ba86f65254c0654a84630e97dc635f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f975779c86f6b5c3005797fc706b02865543ba77935e6cc4b056e471a84e41c7",
    "cross_cats_sorted": [
      "cs.CE",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2020-04-09T23:05:28Z",
    "title_canon_sha256": "cc31ee5cf3a535b8db9c1d9df4fe4c03c20a21c4ea81a4bf8f1719e3d02fd9aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.04844",
    "kind": "arxiv",
    "version": 1
  }
}