Pith Number

pith:VFSWIL66

pith:2019:VFSWIL663YXGMVMGF5MYI5CAKE

not attested not anchored not stored refs pending

Open Domain Web Keyphrase Extraction Beyond Language Modeling

Arnold Overwijk, Chenyan Xiong, Chuan Hu, Daniel Campos, Lee Xiong

arxiv:1911.02671 v1 · 2019-11-06 · cs.CL · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VFSWIL663YXGMVMGF5MYI5CAKE}

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	2026-07-05T00:17:40.287400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a965642fdede2e6655862f598474405139ebe50a679f53a64067db2c7497ad6b

Aliases

arxiv: 1911.02671 · arxiv_version: 1911.02671v1 · doi: 10.48550/arxiv.1911.02671 · pith_short_12: VFSWIL663YXG · pith_short_16: VFSWIL663YXGMVMG · pith_short_8: VFSWIL66

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/VFSWIL663YXGMVMGF5MYI5CAKE \
  | 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: a965642fdede2e6655862f598474405139ebe50a679f53a64067db2c7497ad6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce5632d00cff4da4665798cbaa10c801f8c0ecdece371428212801557413ec91",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-11-06T23:12:56Z",
    "title_canon_sha256": "1ecbd73bf888a4e773547c4b20b82c1634bcbb41552232cabae4c53d3e0bf45b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.02671",
    "kind": "arxiv",
    "version": 1
  }
}