Pith Number

pith:Q2R6PXIX

pith:2015:Q2R6PXIXBY3DRKXC2ZY6N6EGA6

not attested not anchored not stored refs pending

Community detection in bipartite networks using weighted symmetric binary matrix factorization

Yong-Yeol Ahn, Zhong-Yuan Zhang

arxiv:1502.04428 v1 · 2015-02-16 · cs.SI · physics.soc-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{Q2R6PXIXBY3DRKXC2ZY6N6EGA6}

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	2026-05-18T02:26:59.773007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86a3e7dd170e3638aae2d671e6f88607b6622825d87cf329f103aaa540f1154f

Aliases

arxiv: 1502.04428 · arxiv_version: 1502.04428v1 · doi: 10.48550/arxiv.1502.04428 · pith_short_12: Q2R6PXIXBY3D · pith_short_16: Q2R6PXIXBY3DRKXC · pith_short_8: Q2R6PXIX

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/Q2R6PXIXBY3DRKXC2ZY6N6EGA6 \
  | 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: 86a3e7dd170e3638aae2d671e6f88607b6622825d87cf329f103aaa540f1154f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8874d6c40153b2e54b281d5299d50f617ebac5297bab4eec3078dba4d6cac650",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2015-02-16T06:04:27Z",
    "title_canon_sha256": "c2c4da8ef8b8b9fc7e91352ef23583e6f52a3b85395b0d046af309ac1578546b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04428",
    "kind": "arxiv",
    "version": 1
  }
}