Pith Number

pith:3G4GOBHM

pith:2021:3G4GOBHMR54AIEEM6FW6JCWLQ5

not attested not anchored not stored refs pending

Unsupervised Deep Keyphrase Generation

Jingbo Shang, Rui Meng, Xianjie Shen, Yinghan Wang

arxiv:2104.08729 v1 · 2021-04-18 · cs.CL · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3G4GOBHMR54AIEEM6FW6JCWLQ5}

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	2026-07-05T02:32:55.169335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9b86704ec8f7804108cf16de48acb87720c0b9a83f8f7e4be31988fe5343d68

Aliases

arxiv: 2104.08729 · arxiv_version: 2104.08729v1 · doi: 10.48550/arxiv.2104.08729 · pith_short_12: 3G4GOBHMR54A · pith_short_16: 3G4GOBHMR54AIEEM · pith_short_8: 3G4GOBHM

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/3G4GOBHMR54AIEEM6FW6JCWLQ5 \
  | 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: d9b86704ec8f7804108cf16de48acb87720c0b9a83f8f7e4be31988fe5343d68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be293ad9ce0b36593a131e79647644f5fb8c09dc1d96e8b400a773b53b4c7700",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-04-18T05:53:19Z",
    "title_canon_sha256": "047385c2b8a77d783f036d9fe37db4ec6c28a6253e921d0ffc9522fd8b5d807e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.08729",
    "kind": "arxiv",
    "version": 1
  }
}