Pith Number

pith:OSFONC25

pith:2020:OSFONC25XEQ5YKYTDLQS62FA6S

not attested not anchored not stored refs pending

Improving Joint Layer RNN based Keyphrase Extraction by Using Syntactical Features

Ayu Purwarianti, Miftahul Mahfuzh, Sidik Soleman

arxiv:2009.07119 v1 · 2020-09-15 · 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{OSFONC25XEQ5YKYTDLQS62FA6S}

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	2026-07-05T01:35:40.859984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

748ae68b5db921dc2b131ae12f68a0f491e59ecf67cf6719cf74a0574035245c

Aliases

arxiv: 2009.07119 · arxiv_version: 2009.07119v1 · doi: 10.48550/arxiv.2009.07119 · pith_short_12: OSFONC25XEQ5 · pith_short_16: OSFONC25XEQ5YKYT · pith_short_8: OSFONC25

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/OSFONC25XEQ5YKYTDLQS62FA6S \
  | 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: 748ae68b5db921dc2b131ae12f68a0f491e59ecf67cf6719cf74a0574035245c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f33771a3879c94abed961a7a392562515a7e0af46a8eb55810ce307f65d68f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-09-15T14:20:04Z",
    "title_canon_sha256": "6b5f54dbef1caed8387a4ddd54c2d5f2158f941a9e3bbb852dd496c37598b4c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.07119",
    "kind": "arxiv",
    "version": 1
  }
}