Pith Number

pith:7N4U3OGV

pith:2014:7N4U3OGVCK5HNHJAJJMOKQMX53

not attested not anchored not stored refs pending

The Cyclic-Routing UAV Problem is PSPACE-Complete

Hsi-Ming Ho, Joel Ouaknine

arxiv:1411.2874 v2 · 2014-11-10 · cs.LO · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7N4U3OGVCK5HNHJAJJMOKQMX53}

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	2026-05-18T02:28:54.949743Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb794db8d512ba769d204a58e54197eefb2e232676c885a46305baf8f3e685f6

Aliases

arxiv: 1411.2874 · arxiv_version: 1411.2874v2 · doi: 10.48550/arxiv.1411.2874 · pith_short_12: 7N4U3OGVCK5H · pith_short_16: 7N4U3OGVCK5HNHJA · pith_short_8: 7N4U3OGV

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/7N4U3OGVCK5HNHJAJJMOKQMX53 \
  | 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: fb794db8d512ba769d204a58e54197eefb2e232676c885a46305baf8f3e685f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b892429281e1684a0d570377b33af11bc5d97e25d37e23c909c5616dae314c74",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2014-11-10T01:10:37Z",
    "title_canon_sha256": "4bca31dc2b9a310e1e534348c5055fc7d60b03775b4417abbf7f6ad06b24ec35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.2874",
    "kind": "arxiv",
    "version": 2
  }
}