Pith Number

pith:3RTMGACC

pith:2021:3RTMGACCZGYPKTOPBDPS2D6IH5

not attested not anchored not stored refs pending

Extending Neural Keyword Extraction with TF-IDF tagset matching

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

arxiv:2102.00472 v2 · 2021-01-31 · 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{3RTMGACCZGYPKTOPBDPS2D6IH5}

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	2026-07-05T03:56:28.244472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc66c30042c9b0f54dcf08df2d0fc83f7ef6b2597e07d4e771cb048f6cbdbb1f

Aliases

arxiv: 2102.00472 · arxiv_version: 2102.00472v2 · doi: 10.48550/arxiv.2102.00472 · pith_short_12: 3RTMGACCZGYP · pith_short_16: 3RTMGACCZGYPKTOP · pith_short_8: 3RTMGACC

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/3RTMGACCZGYPKTOPBDPS2D6IH5 \
  | 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: dc66c30042c9b0f54dcf08df2d0fc83f7ef6b2597e07d4e771cb048f6cbdbb1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "122163d15d63af36e546a0058367f5f4fb3fcc6a561ebe8de3febd9bf07b11a3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-01-31T15:39:17Z",
    "title_canon_sha256": "4fcb3fdaf19c09446ef45b6e9869a97f57315efc0f470e3e7d98296e0d3a1e6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.00472",
    "kind": "arxiv",
    "version": 2
  }
}