Pith Number

pith:DGK3Q2QS

pith:2019:DGK3Q2QSLYE7PMZ4FORLLZDABV

not attested not anchored not stored refs pending

Document Embeddings vs. Keyphrases vs. Terms: An Online Evaluation in Digital Library Recommender Systems

Andrew Collins, Joeran Beel

arxiv:1905.11244 v1 · 2019-05-27 · cs.IR · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DGK3Q2QSLYE7PMZ4FORLLZDABV}

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	2026-05-17T23:45:02.579241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1995b86a125e09f7b33c2ba2b5e4600d440e7d040645240eee328954d2a9d624

Aliases

arxiv: 1905.11244 · arxiv_version: 1905.11244v1 · doi: 10.48550/arxiv.1905.11244 · pith_short_12: DGK3Q2QSLYE7 · pith_short_16: DGK3Q2QSLYE7PMZ4 · pith_short_8: DGK3Q2QS

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/DGK3Q2QSLYE7PMZ4FORLLZDABV \
  | 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: 1995b86a125e09f7b33c2ba2b5e4600d440e7d040645240eee328954d2a9d624

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "316f1704b3685c93967b956a0952c216f28f1e80e1737722031d8b99ceb3ced2",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-05-27T14:05:50Z",
    "title_canon_sha256": "2b489d110edd017021514b8d9c23d8201f81aa041acf3ef0925077bd3d606a4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.11244",
    "kind": "arxiv",
    "version": 1
  }
}