Pith Number

pith:2RDVRQAT

pith:2014:2RDVRQAT6SYRI6JY6HQM72IUFT

not attested not anchored not stored refs pending

Better Approximation Algorithms for Maximum Asymmetric Traveling Salesman and Shortest Superstring

Katarzyna Paluch

arxiv:1401.3670 v1 · 2014-01-15 · 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{2RDVRQAT6SYRI6JY6HQM72IUFT}

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	2026-05-18T03:02:08.001132Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d44758c013f4b1147938f1e0cfe9142cc47ea8eff05a5108285cf1467005d555

Aliases

arxiv: 1401.3670 · arxiv_version: 1401.3670v1 · doi: 10.48550/arxiv.1401.3670 · pith_short_12: 2RDVRQAT6SYR · pith_short_16: 2RDVRQAT6SYRI6JY · pith_short_8: 2RDVRQAT

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/2RDVRQAT6SYRI6JY6HQM72IUFT \
  | 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: d44758c013f4b1147938f1e0cfe9142cc47ea8eff05a5108285cf1467005d555

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de4cf9cba796cca0f057920ac20d307ded513a46c2473cdd35a43e4b433892f6",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-01-15T17:02:40Z",
    "title_canon_sha256": "4f771641df3d913c0b0b12983c58fb7230baf0c7b18cdff8bc01fdb01cef20a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.3670",
    "kind": "arxiv",
    "version": 1
  }
}