Pith Number

pith:DB7ESFAY

pith:2011:DB7ESFAYK2DPRHOJENFJLST52K

not attested not anchored not stored refs pending

A Fast Algorithm for the Discrete Core/Periphery Bipartitioning Problem

Sean Z.W. Lip

arxiv:1102.5511 v1 · 2011-02-27 · physics.soc-ph · cs.DS · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DB7ESFAYK2DPRHOJENFJLST52K}

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.

Cited by

1 paper in Pith

Reciprocity in Interbank Markets

Receipt and verification

First computed	2026-05-18T04:27:46.749674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

187e4914185686f89dc9234a95ca7dd2ae61fe004b506bd20c5564bc858ec8dd

Aliases

arxiv: 1102.5511 · arxiv_version: 1102.5511v1 · doi: 10.48550/arxiv.1102.5511 · pith_short_12: DB7ESFAYK2DP · pith_short_16: DB7ESFAYK2DPRHOJ · pith_short_8: DB7ESFAY

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/DB7ESFAYK2DPRHOJENFJLST52K \
  | 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: 187e4914185686f89dc9234a95ca7dd2ae61fe004b506bd20c5564bc858ec8dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5517f41fd45b8fa4d1f282f74d77c5fae7376db8b33e2c2c98ce4aa30f05fa8e",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2011-02-27T14:40:20Z",
    "title_canon_sha256": "1956e9e0258342810381bd3ff4c8f80072e434f06edc466c3740ee5929af72f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.5511",
    "kind": "arxiv",
    "version": 1
  }
}