Pith Number

pith:AFON32O3

pith:2019:AFON32O36PAG2TC7ZBZ4IGUOAK

not attested not anchored not stored refs pending

Keyphrase Extraction from Scholarly Articles as Sequence Labeling using Contextualized Embeddings

Agniv Sharma, Amanda Stent, Debanjan Mahata, Dhruva Sahrawat, Haimin Zhang, Mayank Kulkarni, Rajiv Ratn Shah, Rakesh Gosangi, Roger Zimmermann, Yaman Kumar

arxiv:1910.08840 v1 · 2019-10-19 · 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{AFON32O36PAG2TC7ZBZ4IGUOAK}

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	2026-07-05T00:13:20.094628Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

015cdde9dbf3c06d4c5fc873c41a8e02b6c0d3ba2f506db42c69f4d31e23f80d

Aliases

arxiv: 1910.08840 · arxiv_version: 1910.08840v1 · doi: 10.48550/arxiv.1910.08840 · pith_short_12: AFON32O36PAG · pith_short_16: AFON32O36PAG2TC7 · pith_short_8: AFON32O3

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/AFON32O36PAG2TC7ZBZ4IGUOAK \
  | 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: 015cdde9dbf3c06d4c5fc873c41a8e02b6c0d3ba2f506db42c69f4d31e23f80d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f7baf461c5343642797eff9fcd274a9dac0866930bf8008ee7b065b4e7e6e19",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-10-19T20:42:59Z",
    "title_canon_sha256": "74b7a15e8c96391de9ec8e10a19ee1eba40546b894ed93c9f8e998d20ce73710"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.08840",
    "kind": "arxiv",
    "version": 1
  }
}