Pith Number

pith:SLSLIFT6

pith:2015:SLSLIFT6Q6TX3KJJLA4GGLZCRH

not attested not anchored not stored refs pending

Clustering scientific publications based on citation relations: A systematic comparison of different methods

Lovro \v{S}ubelj, Ludo Waltman, Nees Jan van Eck

arxiv:1512.09023 v2 · 2015-12-30 · cs.DL · cs.SI · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SLSLIFT6Q6TX3KJJLA4GGLZCRH}

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	2026-05-18T01:16:02.537595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92e4b4167e87a77da9295838632f2289c24b8639d09da6129aeaa1b0313bbe0d

Aliases

arxiv: 1512.09023 · arxiv_version: 1512.09023v2 · doi: 10.48550/arxiv.1512.09023 · pith_short_12: SLSLIFT6Q6TX · pith_short_16: SLSLIFT6Q6TX3KJJ · pith_short_8: SLSLIFT6

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/SLSLIFT6Q6TX3KJJLA4GGLZCRH \
  | 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: 92e4b4167e87a77da9295838632f2289c24b8639d09da6129aeaa1b0313bbe0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f13544a9936e5179c2fade458a2d887b058766f5dee6244e9479bab3fb1964b8",
    "cross_cats_sorted": [
      "cs.SI",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2015-12-30T17:20:27Z",
    "title_canon_sha256": "cf7252bef4cd55ca8de98b9e4c8d4767d344bcb51595c76222ad72c1f22b291e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.09023",
    "kind": "arxiv",
    "version": 2
  }
}