Pith Number

pith:NSMG4MJX

pith:2015:NSMG4MJXQGGSTESXY3OWXBC3SV

not attested not anchored not stored refs pending

Unsupervised Sentence Simplification Using Deep Semantics

Claire Gardent, Shashi Narayan

arxiv:1507.08452 v3 · 2015-07-30 · 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{NSMG4MJXQGGSTESXY3OWXBC3SV}

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	2026-05-18T01:05:12.803097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c986e3137818d299257c6dd6b845b956b4740a2a886f1828a2c8154f5fedf13

Aliases

arxiv: 1507.08452 · arxiv_version: 1507.08452v3 · doi: 10.48550/arxiv.1507.08452 · pith_short_12: NSMG4MJXQGGS · pith_short_16: NSMG4MJXQGGSTESX · pith_short_8: NSMG4MJX

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/NSMG4MJXQGGSTESXY3OWXBC3SV \
  | 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: 6c986e3137818d299257c6dd6b845b956b4740a2a886f1828a2c8154f5fedf13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "831077a44e8a0006575354fbed0df968424f8d9c78d74720a71ddbf45ff6ce74",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2015-07-30T11:05:01Z",
    "title_canon_sha256": "1754c7712bf2f8e73a36260d65bc5de5d846181d7e405ce4b5d1da0b1d4e6711"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.08452",
    "kind": "arxiv",
    "version": 3
  }
}