Pith Number

pith:DUCDIL3Z

pith:2018:DUCDIL3ZJ5RPFF5QHEQC5MEWYY

not attested not anchored not stored refs pending

A Temporally Sensitive Submodularity Framework for Timeline Summarization

Katja Markert, Sebastian Martschat

arxiv:1810.07949 v1 · 2018-10-18 · 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{DUCDIL3ZJ5RPFF5QHEQC5MEWYY}

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	2026-05-18T00:02:53.665309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d04342f794f62f297b039202eb096c60d5df8720b12509c5ca0870a88eaaef9

Aliases

arxiv: 1810.07949 · arxiv_version: 1810.07949v1 · doi: 10.48550/arxiv.1810.07949 · pith_short_12: DUCDIL3ZJ5RP · pith_short_16: DUCDIL3ZJ5RPFF5Q · pith_short_8: DUCDIL3Z

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/DUCDIL3ZJ5RPFF5QHEQC5MEWYY \
  | 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: 1d04342f794f62f297b039202eb096c60d5df8720b12509c5ca0870a88eaaef9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbc69efa5b8105287d293fab29d08d294b2a59ada189a5989ae9caf11d4a4c72",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-10-18T08:46:40Z",
    "title_canon_sha256": "0c51a60d0eb4bdf58b3dfc4155e736d7a563873e8b9e9c1cdf22cbceff53104a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.07949",
    "kind": "arxiv",
    "version": 1
  }
}