Pith Number

pith:NYCJBNSG

pith:2019:NYCJBNSG3QILGSTLRGACBY6APB

not attested not anchored not stored refs pending

Unsupervised Hierarchical Grouping of Knowledge Graph Entities

Sameh K. Mohamed

arxiv:1908.07281 v1 · 2019-08-20 · cs.IR · cs.AI · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NYCJBNSG3QILGSTLRGACBY6APB}

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	2026-07-04T23:58:32.758836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e0490b646dc10b34a6b898020e3c07863e62a60c53536b8a7fa3ad66872c789

Aliases

arxiv: 1908.07281 · arxiv_version: 1908.07281v1 · doi: 10.48550/arxiv.1908.07281 · pith_short_12: NYCJBNSG3QIL · pith_short_16: NYCJBNSG3QILGSTL · pith_short_8: NYCJBNSG

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/NYCJBNSG3QILGSTLRGACBY6APB \
  | 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: 6e0490b646dc10b34a6b898020e3c07863e62a60c53536b8a7fa3ad66872c789

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a4d709062d8c98b66605ea45933bda5dee441a8646594273fa33f6f6462271d",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-08-20T11:40:16Z",
    "title_canon_sha256": "6a7592ed60db7d67f11a08551671f8368e6c9f48c0dae6e15bbd0a9266b4011a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.07281",
    "kind": "arxiv",
    "version": 1
  }
}