Pith Number

pith:EF5VD6OP

pith:2001:EF5VD6OPGCJH2PHLB2JL43KT75

not attested not anchored not stored refs pending

Exact Complexity of the Winner Problem for Young Elections

Holger Spakowski, J\"org Rothe, J\"org Vogel

arxiv:cs/0112021 v1 · 2001-12-20 · 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{EF5VD6OPGCJH2PHLB2JL43KT75}

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	2026-05-18T01:09:08.418747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

217b51f9cf30927d3ceb0e92be6d53ff6ce20396be7cb347c56a8343712e5220

Aliases

arxiv: cs/0112021 · arxiv_version: cs/0112021v1 · doi: 10.48550/arxiv.cs/0112021 · pith_short_12: EF5VD6OPGCJH · pith_short_16: EF5VD6OPGCJH2PHL · pith_short_8: EF5VD6OP

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/EF5VD6OPGCJH2PHLB2JL43KT75 \
  | 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: 217b51f9cf30927d3ceb0e92be6d53ff6ce20396be7cb347c56a8343712e5220

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "358db1b98741ef9d62cc14e0a812ba452750a036e850dc8f2586d2027bed60ec",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.CC",
    "submitted_at": "2001-12-20T11:37:33Z",
    "title_canon_sha256": "756bb15aa4519b216e641619eae3b702668271c86d608d7459dab3ba2c77f907"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0112021",
    "kind": "arxiv",
    "version": 1
  }
}