Pith Number

pith:2S6MYX7W

pith:2018:2S6MYX7WP4HICHYYWONB6IE3UP

not attested not anchored not stored refs pending

Very Hard Electoral Control Problems

Alexander Hoover, David E. Narv\'aez, Edith Hemaspaandra, Zack Fitzsimmons

arxiv:1811.05438 v1 · 2018-11-13 · cs.GT · cs.CC · cs.MA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2S6MYX7WP4HICHYYWONB6IE3UP}

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	2026-05-18T00:00:46.153539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4bccc5ff67f0e811f18b39a1f209ba3e7a78f03e08f5b2bfc8117476b676d5a

Aliases

arxiv: 1811.05438 · arxiv_version: 1811.05438v1 · doi: 10.48550/arxiv.1811.05438 · pith_short_12: 2S6MYX7WP4HI · pith_short_16: 2S6MYX7WP4HICHYY · pith_short_8: 2S6MYX7W

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/2S6MYX7WP4HICHYYWONB6IE3UP \
  | 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: d4bccc5ff67f0e811f18b39a1f209ba3e7a78f03e08f5b2bfc8117476b676d5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06fe04e0fe9425c075941c156d70c5bbbc6426c092686684e3e052bd963ca52a",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.MA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2018-11-13T18:04:53Z",
    "title_canon_sha256": "cb157e44c755315cb328609144a018fb2077421b05c29f90745d8fb5b6c6ed71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.05438",
    "kind": "arxiv",
    "version": 1
  }
}