Pith Number

pith:UAHBRO5Q

pith:2014:UAHBRO5QVBWIMNYN6VCJOMFUK6

not attested not anchored not stored refs pending

Approximating the Regular Graphic TSP in near linear time

Ashish Chiplunkar, Sundar Vishwanathan

arxiv:1404.2396 v2 · 2014-04-09 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UAHBRO5QVBWIMNYN6VCJOMFUK6}

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	2026-05-18T02:49:46.898057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a00e18bbb0a86c86370df5449730b4578847fe1e5cc4901d000b666e08371252

Aliases

arxiv: 1404.2396 · arxiv_version: 1404.2396v2 · doi: 10.48550/arxiv.1404.2396 · pith_short_12: UAHBRO5QVBWI · pith_short_16: UAHBRO5QVBWIMNYN · pith_short_8: UAHBRO5Q

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/UAHBRO5QVBWIMNYN6VCJOMFUK6 \
  | 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: a00e18bbb0a86c86370df5449730b4578847fe1e5cc4901d000b666e08371252

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71fc56c396d0cb0371c0c49ebd69ecab2fc31e4420b8b1ff56cc3ee3c76553d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-04-09T08:48:51Z",
    "title_canon_sha256": "7802bc8bc79ec942c9f5e5fc736fd5144083a2ce77ea017976cb5ec90822726e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.2396",
    "kind": "arxiv",
    "version": 2
  }
}