Pith Number

pith:T3UQPRUA

pith:2012:T3UQPRUAN7NK3LN6VSSJJMJLAE

not attested not anchored not stored refs pending

The 1-Center and 1-Highway problem

Inmaculada Ventura, Jos\'e Miguel D\'iaz-B\'a\~nez, Matias Korman, Pablo P\'erez-Lantero

arxiv:1205.1882 v1 · 2012-05-09 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T3UQPRUAN7NK3LN6VSSJJMJLAE}

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	2026-05-18T03:55:58.383478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ee907c6806fdaadadbeaca494b12b0113bfdbe0759637c3b5a3ee7737f681e6

Aliases

arxiv: 1205.1882 · arxiv_version: 1205.1882v1 · doi: 10.48550/arxiv.1205.1882 · pith_short_12: T3UQPRUAN7NK · pith_short_16: T3UQPRUAN7NK3LN6 · pith_short_8: T3UQPRUA

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/T3UQPRUAN7NK3LN6VSSJJMJLAE \
  | 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: 9ee907c6806fdaadadbeaca494b12b0113bfdbe0759637c3b5a3ee7737f681e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c71aacfd3cdc85668652e9db5e268a663eac4b1caaf228e81241bacd9d224782",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2012-05-09T06:53:08Z",
    "title_canon_sha256": "06acf7304f37f28bddf5754fb86a24128860ed4cf23076b3b2d0354022d0a3de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.1882",
    "kind": "arxiv",
    "version": 1
  }
}