Pith Number

pith:DBSLCZIX

pith:2020:DBSLCZIXBQAHPMOBZUBYFZD3HT

not attested not anchored not stored refs pending

Parameterized Complexity of Geodetic Set

Leon Kellerhals, Tomohiro Koana

arxiv:2001.03098 v4 · 2020-01-09 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DBSLCZIXBQAHPMOBZUBYFZD3HT}

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	2026-07-05T01:39:11.681918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1864b165170c0077b1c1cd0382e47b3ce452c4cb8a24af44255f36dee852c153

Aliases

arxiv: 2001.03098 · arxiv_version: 2001.03098v4 · doi: 10.48550/arxiv.2001.03098 · pith_short_12: DBSLCZIXBQAH · pith_short_16: DBSLCZIXBQAHPMOB · pith_short_8: DBSLCZIX

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/DBSLCZIXBQAHPMOBZUBYFZD3HT \
  | 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: 1864b165170c0077b1c1cd0382e47b3ce452c4cb8a24af44255f36dee852c153

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b0298dfe3b5728e237f6c79c42ff1656c14ccdbe29424e299749094256363fa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2020-01-09T16:54:03Z",
    "title_canon_sha256": "8d13282c94004e5c90c6d49e859ce9ef4d57c6e0bd16ee9291db8784139017c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.03098",
    "kind": "arxiv",
    "version": 4
  }
}