Pith Number

pith:MPLZSYC3

pith:2014:MPLZSYC3NV4QLKS34FO3E7YNFY

not attested not anchored not stored refs pending

The Polyhedron-Hitting Problem

James Worrell, Jo\"el Ouaknine, Ventsislav Chonev

arxiv:1407.1889 v2 · 2014-07-07 · 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{MPLZSYC3NV4QLKS34FO3E7YNFY}

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	2026-05-18T02:40:17.942540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63d799605b6d7905aa5be15db27f0d2e1c5069314d00918040ee6d0759eaa8c4

Aliases

arxiv: 1407.1889 · arxiv_version: 1407.1889v2 · doi: 10.48550/arxiv.1407.1889 · pith_short_12: MPLZSYC3NV4Q · pith_short_16: MPLZSYC3NV4QLKS3 · pith_short_8: MPLZSYC3

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/MPLZSYC3NV4QLKS34FO3E7YNFY \
  | 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: 63d799605b6d7905aa5be15db27f0d2e1c5069314d00918040ee6d0759eaa8c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6186b92499f3cf43cb0f254afa6da814b958a19ccc1862b85dce44d85821f7a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2014-07-07T21:21:56Z",
    "title_canon_sha256": "71d40b7ff7a12458e243ec7fe0550f0e09c00d75f1c20a9c42975e621d5b7c97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.1889",
    "kind": "arxiv",
    "version": 2
  }
}