Pith Number

pith:NXEJOLKC

pith:2014:NXEJOLKCYBTV4LWXJWRPJ5HNLK

not attested not anchored not stored refs pending

Approximation Algorithms for the Asymmetric Traveling Salesman Problem : Describing two recent methods

Arka Bhattacharya

arxiv:1405.1781 v1 · 2014-05-08 · 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{NXEJOLKCYBTV4LWXJWRPJ5HNLK}

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	2026-05-18T02:52:22.493937Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6dc8972d42c0675e2ed74da2f4f4ed5ab825a624d1496b856ce6081971d54825

Aliases

arxiv: 1405.1781 · arxiv_version: 1405.1781v1 · doi: 10.48550/arxiv.1405.1781 · pith_short_12: NXEJOLKCYBTV · pith_short_16: NXEJOLKCYBTV4LWX · pith_short_8: NXEJOLKC

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/NXEJOLKCYBTV4LWXJWRPJ5HNLK \
  | 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: 6dc8972d42c0675e2ed74da2f4f4ed5ab825a624d1496b856ce6081971d54825

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c2737c3c70562976e5225721cb6f7775799755b4236c947117bda8da510391c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-05-08T00:10:56Z",
    "title_canon_sha256": "3665ac96f11ba90cda30874a9c70f6ee65e5eb794b2ca4d90334780fa5d6c561"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.1781",
    "kind": "arxiv",
    "version": 1
  }
}