Pith Number

pith:GTKB4LDN

pith:2009:GTKB4LDN53KG76ZB6LO2D4YLOH

not attested not anchored not stored refs pending

The Asymmetric Traveling Salesman Problem on Graphs with Bounded Genus

Amin Saberi, Shayan Oveis Gharan

arxiv:0909.2849 v4 · 2009-09-15 · cs.DS · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GTKB4LDN53KG76ZB6LO2D4YLOH}

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	2026-05-18T04:31:41.529989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34d41e2c6deed46ffb21f2dda1f30b71e7ab57548a41861d108a894a7d798ccf

Aliases

arxiv: 0909.2849 · arxiv_version: 0909.2849v4 · doi: 10.48550/arxiv.0909.2849 · pith_short_12: GTKB4LDN53KG · pith_short_16: GTKB4LDN53KG76ZB · pith_short_8: GTKB4LDN

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/GTKB4LDN53KG76ZB6LO2D4YLOH \
  | 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: 34d41e2c6deed46ffb21f2dda1f30b71e7ab57548a41861d108a894a7d798ccf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7a5d9451b1470feede3155a94bbf679cae3e0349f6f11edee3794fc9181ca8e",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2009-09-15T18:39:03Z",
    "title_canon_sha256": "2909f6099a37d394e7bfe14a7444689355422384a7530aae66ccc0ba3b480bf0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2849",
    "kind": "arxiv",
    "version": 4
  }
}