Pith Number

pith:5FL5VWBN

pith:2016:5FL5VWBNIK3JII4ACECV5XPTMH

not attested not anchored not stored refs pending

Finding Large Set Covers Faster via the Representation Method

Jesper Nederlof

arxiv:1608.03439 v1 · 2016-08-11 · cs.DS · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5FL5VWBNIK3JII4ACECV5XPTMH}

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	2026-05-18T01:09:28.920759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e957dad82d42b694238011055eddf361d697d0e40857fa2e28317997e542be1c

Aliases

arxiv: 1608.03439 · arxiv_version: 1608.03439v1 · doi: 10.48550/arxiv.1608.03439 · pith_short_12: 5FL5VWBNIK3J · pith_short_16: 5FL5VWBNIK3JII4A · pith_short_8: 5FL5VWBN

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/5FL5VWBNIK3JII4ACECV5XPTMH \
  | 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: e957dad82d42b694238011055eddf361d697d0e40857fa2e28317997e542be1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9b3b215e31d2d57408cf83f08e7940f91351c8ef203b3643a0660a4af986c8a",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-08-11T12:48:39Z",
    "title_canon_sha256": "9e7ebbf74ad22a18af5706419ee06db43935afda80d9a36e3144371e4aea2e43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.03439",
    "kind": "arxiv",
    "version": 1
  }
}