Pith Number

pith:VMVUNGVS

pith:2014:VMVUNGVS3Q3EALS5DSAE2YIBPF

not attested not anchored not stored refs pending

On the metric s-t path Traveling Salesman Problem

Zhihan Gao

arxiv:1404.7569 v2 · 2014-04-30 · 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{VMVUNGVS3Q3EALS5DSAE2YIBPF}

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	2026-05-18T02:23:27.160103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab2b469ab2dc36402e5d1c804d6101794174fc3d03129f171c800f93c3723ac6

Aliases

arxiv: 1404.7569 · arxiv_version: 1404.7569v2 · doi: 10.48550/arxiv.1404.7569 · pith_short_12: VMVUNGVS3Q3E · pith_short_16: VMVUNGVS3Q3EALS5 · pith_short_8: VMVUNGVS

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/VMVUNGVS3Q3EALS5DSAE2YIBPF \
  | 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: ab2b469ab2dc36402e5d1c804d6101794174fc3d03129f171c800f93c3723ac6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c40bee8e03fbd635625e57050aeb809834bad27a1904f91ef2e5cc400c3f5ea3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-04-30T01:24:22Z",
    "title_canon_sha256": "b43f681833172a87891a0ba07419fa39223fa27dcb8ae85637e9994ff4bbbd00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.7569",
    "kind": "arxiv",
    "version": 2
  }
}