Pith Number

pith:DENDB4X6

pith:2014:DENDB4X63QQ34BCDCWDVBKHLDV

not attested not anchored not stored refs pending

The constant objective value property for combinatorial optimization problems

Ante \'Custi\'c, Bettina Klinz

arxiv:1405.6096 v2 · 2014-05-19 · math.CO · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DENDB4X63QQ34BCDCWDVBKHLDV}

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	2026-05-18T02:48:01.987555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

191a30f2fedc21be0443158750a8eb1d5ee9f87145a9718b2b032a0681883146

Aliases

arxiv: 1405.6096 · arxiv_version: 1405.6096v2 · doi: 10.48550/arxiv.1405.6096 · pith_short_12: DENDB4X63QQ3 · pith_short_16: DENDB4X63QQ34BCD · pith_short_8: DENDB4X6

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/DENDB4X63QQ34BCDCWDVBKHLDV \
  | 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: 191a30f2fedc21be0443158750a8eb1d5ee9f87145a9718b2b032a0681883146

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "972db13c92180e8f8f6568f645aea7a3e7cb7406afb108bad1de2251602de15a",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-05-19T20:36:50Z",
    "title_canon_sha256": "fa66b27fe4348d1051db111d9e47ad58074d47b08374b7ad45c5c654f6637091"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.6096",
    "kind": "arxiv",
    "version": 2
  }
}