Pith Number

pith:Z5BDZJB4

pith:2013:Z5BDZJB4EDJQXIRRVXXDGXQA3G

not attested not anchored not stored refs pending

Parameterized Algorithms for Finding Square Roots

Dani\"el Paulusma, Dieter Kratsch, Jean-Fran\c{c}ois Couturier, Manfred Cochefert, Petr A. Golovach

arxiv:1310.5469 v1 · 2013-10-21 · 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{Z5BDZJB4EDJQXIRRVXXDGXQA3G}

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	2026-05-18T03:09:35.543313Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf423ca43c20d30ba231adee335e00d99b185f4695231c1c470ab5a526617cba

Aliases

arxiv: 1310.5469 · arxiv_version: 1310.5469v1 · doi: 10.48550/arxiv.1310.5469 · pith_short_12: Z5BDZJB4EDJQ · pith_short_16: Z5BDZJB4EDJQXIRR · pith_short_8: Z5BDZJB4

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/Z5BDZJB4EDJQXIRRVXXDGXQA3G \
  | 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: cf423ca43c20d30ba231adee335e00d99b185f4695231c1c470ab5a526617cba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc1cf1f9fa9d51fb4c135eaefc1897a12afa43df3c7cca11844a86022001b668",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-10-21T08:57:19Z",
    "title_canon_sha256": "94bfc4ca78a3a885f2c16412218b23dd180f26ac3d615815f22c13bb786803da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.5469",
    "kind": "arxiv",
    "version": 1
  }
}