Pith Number

pith:RIW3ZZEF

pith:2019:RIW3ZZEFHQHONKPSLHFWA3XCEE

not attested not anchored not stored refs pending

An Optimal Algorithm for Stopping on the Element Closest to the Center of an Interval

Ewa M. Kubicka, Grzegorz Kubicki, Ma{\l}gorzata Kuchta, Ma{\l}gorzata Sulkowska

arxiv:1904.12600 v1 · 2019-04-29 · math.CO · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RIW3ZZEFHQHONKPSLHFWA3XCEE}

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	2026-05-17T23:47:34.681952Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a2dbce4853c0ee6a9f259cb606ee2211998ea10e1601e29b5b349c45eafd82c

Aliases

arxiv: 1904.12600 · arxiv_version: 1904.12600v1 · doi: 10.48550/arxiv.1904.12600 · pith_short_12: RIW3ZZEFHQHO · pith_short_16: RIW3ZZEFHQHONKPS · pith_short_8: RIW3ZZEF

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/RIW3ZZEFHQHONKPSLHFWA3XCEE \
  | 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: 8a2dbce4853c0ee6a9f259cb606ee2211998ea10e1601e29b5b349c45eafd82c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63d72cee1d94b8af9d2512e32fda6a84356534c2fedf1d9980eecc216fd41640",
    "cross_cats_sorted": [
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-04-29T12:23:28Z",
    "title_canon_sha256": "2a87ce34dec2ed58d664bebaab83aa6d0cea72764b9b27bfb148da782bbe36cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.12600",
    "kind": "arxiv",
    "version": 1
  }
}