Pith Number

pith:OOAXJCA5

pith:2018:OOAXJCA5KDDZJKSDLLVGBZW5ZB

not attested not anchored not stored refs pending

Weak Semi-Markov CRFs for NP Chunking in Informal Text

Aldrian Obaja Muis, Wei Lu

arxiv:1810.08567 v1 · 2018-10-19 · 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{OOAXJCA5KDDZJKSDLLVGBZW5ZB}

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	2026-05-18T00:02:47.776736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

738174881d50c794aa435aea60e6ddc848a90f367e006d02ca1d1cb5ea280e87

Aliases

arxiv: 1810.08567 · arxiv_version: 1810.08567v1 · doi: 10.48550/arxiv.1810.08567 · pith_short_12: OOAXJCA5KDDZ · pith_short_16: OOAXJCA5KDDZJKSD · pith_short_8: OOAXJCA5

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/OOAXJCA5KDDZJKSDLLVGBZW5ZB \
  | 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: 738174881d50c794aa435aea60e6ddc848a90f367e006d02ca1d1cb5ea280e87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf85a2c99bee62aa441d9843523b32b610838024b059b327ab11d344b66fedda",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-10-19T16:09:35Z",
    "title_canon_sha256": "a1a4e8d6afb2b388b9bf453cb0185abcdb130f0905cf73fc795baf643b86b471"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.08567",
    "kind": "arxiv",
    "version": 1
  }
}