Pith Number

pith:4TRYVWOQ

pith:2014:4TRYVWOQEVSGZBZCK6LINJXN7E

not attested not anchored not stored refs pending

Planar 3-dimensional assignment problems with Monge-like cost arrays

Ante \'Custi\'c, Bettina Klinz, Gerhard J. Woeginger

arxiv:1405.5210 v1 · 2014-05-20 · math.OC · 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{4TRYVWOQEVSGZBZCK6LINJXN7E}

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	2026-05-18T02:51:25.823207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4e38ad9d025646c8722579686a6edf9301bffa08b7eb430db5e0babd7a67828

Aliases

arxiv: 1405.5210 · arxiv_version: 1405.5210v1 · doi: 10.48550/arxiv.1405.5210 · pith_short_12: 4TRYVWOQEVSG · pith_short_16: 4TRYVWOQEVSGZBZC · pith_short_8: 4TRYVWOQ

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/4TRYVWOQEVSGZBZCK6LINJXN7E \
  | 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: e4e38ad9d025646c8722579686a6edf9301bffa08b7eb430db5e0babd7a67828

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c04e6048aaba6ac21fe6fe76b08a413ada004308254ad5b52c0c85c11b01da6f",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-05-20T19:59:41Z",
    "title_canon_sha256": "e8433f8c223366e870ba54877d29f528454a2d0e0afadd659de20e3ba50c104b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.5210",
    "kind": "arxiv",
    "version": 1
  }
}