Pith Number

pith:5PBWWYZY

pith:2018:5PBWWYZYZH6O7KQLOW4CGE5AD7

not attested not anchored not stored refs pending

A Novel ILP Framework for Summarizing Content with High Lexical Variety

Diane Litman, Fei Liu, Wencan Luo, Zitao Liu

arxiv:1807.09671 v1 · 2018-07-25 · 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{5PBWWYZYZH6O7KQLOW4CGE5AD7}

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	2026-05-18T00:09:50.600354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebc36b6338c9fcefaa0b75b82313a01fda27e837a43556ee80707592e52904b0

Aliases

arxiv: 1807.09671 · arxiv_version: 1807.09671v1 · doi: 10.48550/arxiv.1807.09671 · pith_short_12: 5PBWWYZYZH6O · pith_short_16: 5PBWWYZYZH6O7KQL · pith_short_8: 5PBWWYZY

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/5PBWWYZYZH6O7KQLOW4CGE5AD7 \
  | 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: ebc36b6338c9fcefaa0b75b82313a01fda27e837a43556ee80707592e52904b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3a9f2ab5a072f3f31ad89438423fe9b0fe59b6931100f208664a6abfb86250e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-07-25T15:42:01Z",
    "title_canon_sha256": "70852c95d0a7ec7ea6c499738cb5476a6d47246ba37c396b3ba4856afb548463"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09671",
    "kind": "arxiv",
    "version": 1
  }
}