Pith Number

pith:WCY4NCLN

pith:2017:WCY4NCLNAUZ5UU6JY2U6BY2QV7

not attested not anchored not stored refs pending

The NLTK FrameNet API: Designing for Discoverability with a Rich Linguistic Resource

Chuck Wooters, Nathan Schneider

arxiv:1703.07438 v2 · 2017-03-21 · 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{WCY4NCLNAUZ5UU6JY2U6BY2QV7}

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	2026-05-18T00:39:46.595241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0b1c6896d0533da53c9c6a9e0e350afc4dba4d1ed20a58c972878937e3e2108

Aliases

arxiv: 1703.07438 · arxiv_version: 1703.07438v2 · doi: 10.48550/arxiv.1703.07438 · pith_short_12: WCY4NCLNAUZ5 · pith_short_16: WCY4NCLNAUZ5UU6J · pith_short_8: WCY4NCLN

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/WCY4NCLNAUZ5UU6JY2U6BY2QV7 \
  | 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: b0b1c6896d0533da53c9c6a9e0e350afc4dba4d1ed20a58c972878937e3e2108

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55d3988b6bfdea63fbcc16397ef72d544fb74fde9ea9658e1388521dc6c9d30e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2017-03-21T21:36:28Z",
    "title_canon_sha256": "6df5e26abc0d367bfc36ec7bb5832814bf5804a69a5e12e7b4992cab415f6522"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.07438",
    "kind": "arxiv",
    "version": 2
  }
}