Pith Number

pith:ZGU6PEKT

pith:2018:ZGU6PEKTFKYUCHYAPEUJVDDCWO

not attested not anchored not stored refs pending

From POS tagging to dependency parsing for biomedical event extraction

Dat Quoc Nguyen, Karin Verspoor

arxiv:1808.03731 v2 · 2018-08-11 · 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{ZGU6PEKTFKYUCHYAPEUJVDDCWO}

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	2026-05-17T23:54:16.256493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9a9e791532ab1411f0079289a8c62b3ae143c05069ed033101946f262d35a58

Aliases

arxiv: 1808.03731 · arxiv_version: 1808.03731v2 · doi: 10.48550/arxiv.1808.03731 · pith_short_12: ZGU6PEKTFKYU · pith_short_16: ZGU6PEKTFKYUCHYA · pith_short_8: ZGU6PEKT

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/ZGU6PEKTFKYUCHYAPEUJVDDCWO \
  | 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: c9a9e791532ab1411f0079289a8c62b3ae143c05069ed033101946f262d35a58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69464f9a9fc20408a7e45ac51d40e7e0945153b09e825a08019d0c753e2dca02",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-08-11T01:03:45Z",
    "title_canon_sha256": "9f3436941e231b837c3af0038e9bd9f1bd76ca3bea26982dd6f52470ae2a9085"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.03731",
    "kind": "arxiv",
    "version": 2
  }
}