Pith Number

pith:V5T7L3NY

pith:2016:V5T7L3NY6FM3VJNP6G3D3PWFIM

not attested not anchored not stored refs pending

An Extended Note on the Comparison-optimal Dual Pivot Quickselect

Daniel Krenn

arxiv:1607.05008 v2 · 2016-07-18 · math.CO · 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{V5T7L3NY6FM3VJNP6G3D3PWFIM}

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	2026-05-18T01:02:12.455076Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af67f5edb8f159baa5aff1b63dbec543052cc004e15617bee5498b4a2c853670

Aliases

arxiv: 1607.05008 · arxiv_version: 1607.05008v2 · doi: 10.48550/arxiv.1607.05008 · pith_short_12: V5T7L3NY6FM3 · pith_short_16: V5T7L3NY6FM3VJNP · pith_short_8: V5T7L3NY

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/V5T7L3NY6FM3VJNP6G3D3PWFIM \
  | 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: af67f5edb8f159baa5aff1b63dbec543052cc004e15617bee5498b4a2c853670

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7508b3bfdc67e4106525f91a302f893573c278a444b2304c360ee442d7ef58c4",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-07-18T10:48:06Z",
    "title_canon_sha256": "7ccb07a5faab4fda7465caca2362cd748a30d703933485df56ce89b285de024f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.05008",
    "kind": "arxiv",
    "version": 2
  }
}