Pith Number

pith:HZPBJQ36

pith:2013:HZPBJQ36KD3VXJN2GK7TJMWYXQ

not attested not anchored not stored refs pending

Optimal Cooperative Searching Using Purely Repulsive Interactions

Ajay Gopinathan, Alan Blatt, David A. Quint, Noriyuki P. Tani

arxiv:1311.1549 v1 · 2013-11-06 · 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{HZPBJQ36KD3VXJN2GK7TJMWYXQ}

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	2026-05-18T00:03:20.215530Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e5e14c37e50f75ba5ba32bf34b2d8bc2c20e36fb5a6fc56973653c5456ea259

Aliases

arxiv: 1311.1549 · arxiv_version: 1311.1549v1 · doi: 10.48550/arxiv.1311.1549 · pith_short_12: HZPBJQ36KD3V · pith_short_16: HZPBJQ36KD3VXJN2 · pith_short_8: HZPBJQ36

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/HZPBJQ36KD3VXJN2GK7TJMWYXQ \
  | 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: 3e5e14c37e50f75ba5ba32bf34b2d8bc2c20e36fb5a6fc56973653c5456ea259

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d6f64bdc98b1f26d8a157f537caff010c55b6097cee209eaca6f861a70efcb4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2013-11-06T23:42:35Z",
    "title_canon_sha256": "714c24764f39459026712f4d10d2c8358d4194c95718c7596342163983fcae77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.1549",
    "kind": "arxiv",
    "version": 1
  }
}