Pith Number

pith:Q7ZO4IHD

pith:2022:Q7ZO4IHDO4IXW5HLM45RCCTIMZ

not attested not anchored not stored refs pending

Retrieval-efficiency trade-off of Unsupervised Keyword Extraction

Bla\v{z} \v{S}krlj, Boshko Koloski, Senja Pollak

arxiv:2208.07262 v1 · 2022-08-15 · 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{Q7ZO4IHDO4IXW5HLM45RCCTIMZ}

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	2026-07-05T07:27:02.133424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87f2ee20e377117b74eb673b110a686641d6e3acb7f2bfb8f19bee2b7c26a3b9

Aliases

arxiv: 2208.07262 · arxiv_version: 2208.07262v1 · doi: 10.48550/arxiv.2208.07262 · pith_short_12: Q7ZO4IHDO4IX · pith_short_16: Q7ZO4IHDO4IXW5HL · pith_short_8: Q7ZO4IHD

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/Q7ZO4IHDO4IXW5HLM45RCCTIMZ \
  | 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: 87f2ee20e377117b74eb673b110a686641d6e3acb7f2bfb8f19bee2b7c26a3b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e0a30589103a05b768006ce2d131554f7eee3726e0e6607dce1e3fc344ca91c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2022-08-15T15:15:10Z",
    "title_canon_sha256": "940aa562529bda9d82c8c04dfed63d6131e247fb3b71cd716321a6f7a40a5b81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.07262",
    "kind": "arxiv",
    "version": 1
  }
}