Pith Number

pith:NPFZGG7N

pith:2020:NPFZGG7NQHFOJFFIO5QVEPCBJV

not attested not anchored not stored refs pending

Pairwise Multi-Class Document Classification for Semantic Relations between Wikipedia Articles

Bela Gipp, Georg Rehm, Malte Ostendorff, Moritz Schubotz, Terry Ruas

arxiv:2003.09881 v1 · 2020-03-22 · cs.DL · cs.CL · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NPFZGG7NQHFOJFFIO5QVEPCBJV}

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	2026-07-05T00:49:47.793681Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bcb931bed81cae494a87761523c414d4decbb622502207bb89559b08a62389d

Aliases

arxiv: 2003.09881 · arxiv_version: 2003.09881v1 · doi: 10.48550/arxiv.2003.09881 · pith_short_12: NPFZGG7NQHFO · pith_short_16: NPFZGG7NQHFOJFFI · pith_short_8: NPFZGG7N

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/NPFZGG7NQHFOJFFIO5QVEPCBJV \
  | 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: 6bcb931bed81cae494a87761523c414d4decbb622502207bb89559b08a62389d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50b47e3f3d624cb25e3c50f7510e594fb1fdb24189a473cc0a44a0e34b1b7407",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2020-03-22T12:52:56Z",
    "title_canon_sha256": "1ad72a2b1819181d465cec2c5f8e914703a82a883cc21b524df83d17c431b1e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.09881",
    "kind": "arxiv",
    "version": 1
  }
}