Pith Number

pith:PLKN4KTH

pith:2013:PLKN4KTHNBT5PJCFQONLX2QWD3

not attested not anchored not stored refs pending

A paradox in community detection

Filippo Radicchi

arxiv:1312.4224 v2 · 2013-12-16 · physics.soc-ph · 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{PLKN4KTHNBT5PJCFQONLX2QWD3}

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	2026-05-18T02:52:34.149622Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ad4de2a676867d7a445839abbea161ec789dab9c231ac32a6ab5e1f7b53e19e

Aliases

arxiv: 1312.4224 · arxiv_version: 1312.4224v2 · doi: 10.48550/arxiv.1312.4224 · pith_short_12: PLKN4KTHNBT5 · pith_short_16: PLKN4KTHNBT5PJCF · pith_short_8: PLKN4KTH

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/PLKN4KTHNBT5PJCFQONLX2QWD3 \
  | 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: 7ad4de2a676867d7a445839abbea161ec789dab9c231ac32a6ab5e1f7b53e19e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c373f82f7181417a447ee40180dd109c5bc39c7ad7d08193f30868512276d3b",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2013-12-16T01:45:36Z",
    "title_canon_sha256": "52c48bf07576dd662aa7ebd48bb6132f7a5c9b600c6db7738f492fc5583348de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.4224",
    "kind": "arxiv",
    "version": 2
  }
}