Pith Number

pith:4FU37STX

pith:2018:4FU37STXA2EQ2YRYTEBG5DSI3S

not attested not anchored not stored refs pending

A Byte-sized Approach to Named Entity Recognition

Emily Sheng, Prem Natarajan

arxiv:1809.08386 v1 · 2018-09-22 · 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{4FU37STXA2EQ2YRYTEBG5DSI3S}

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	2026-05-18T00:05:08.663721Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e169bfca7706890d623899026e8e48dca02895457bb3b13b6a52ae8541e1c224

Aliases

arxiv: 1809.08386 · arxiv_version: 1809.08386v1 · doi: 10.48550/arxiv.1809.08386 · pith_short_12: 4FU37STXA2EQ · pith_short_16: 4FU37STXA2EQ2YRY · pith_short_8: 4FU37STX

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/4FU37STXA2EQ2YRYTEBG5DSI3S \
  | 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: e169bfca7706890d623899026e8e48dca02895457bb3b13b6a52ae8541e1c224

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa5ff85e07ef7e3228640932915d1701d4f4a4ff6002da7846d56e5e1495e92c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-09-22T06:03:29Z",
    "title_canon_sha256": "e616b59855cf450a8283d27d4021e838c2b4e59bb7407d2ee495dd0db48c902e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08386",
    "kind": "arxiv",
    "version": 1
  }
}