Pith Number

pith:LJNW2QPK

pith:2019:LJNW2QPKNSASRE6VXWGQUZQHCL

not attested not anchored not stored refs pending

New Notions and Constructions of Sparsification for Graphs and Hypergraphs

Luca Trevisan, Nikhil Bansal, Ola Svensson

arxiv:1905.01495 v1 · 2019-05-04 · cs.DS · cs.DM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LJNW2QPKNSASRE6VXWGQUZQHCL}

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.

Cited by

1 paper in Pith

Strong Sparsification for 1-in-3-SAT via Polynomial Freiman-Ruzsa

Receipt and verification

First computed	2026-05-17T23:46:58.405866Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a5b6d41ea6c812893d5bd8d0a660712d889ed6b51381aadec7217d6f193e787

Aliases

arxiv: 1905.01495 · arxiv_version: 1905.01495v1 · doi: 10.48550/arxiv.1905.01495 · pith_short_12: LJNW2QPKNSAS · pith_short_16: LJNW2QPKNSASRE6V · pith_short_8: LJNW2QPK

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/LJNW2QPKNSASRE6VXWGQUZQHCL \
  | 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: 5a5b6d41ea6c812893d5bd8d0a660712d889ed6b51381aadec7217d6f193e787

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6cc088462b700d82a2ebc39cf751111152fc57686c3b3511bca2f439108323c6",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-05-04T13:58:37Z",
    "title_canon_sha256": "3bd2a330934d1785724521619360a050a9e37c880afaab4c79c860076760fdaf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.01495",
    "kind": "arxiv",
    "version": 1
  }
}