Pith Number

pith:F5FUBQSP

pith:2017:F5FUBQSPHLFY7YM3BTL6UQIJHI

not attested not anchored not stored refs pending

Mixed Integer Programming with Convex/Concave Constraints: Fixed-Parameter Tractability and Applications to Multicovering and Voting

Nimrod Talmon, Piotr Faliszewski, Piotr Skowron, Robert Bredereck, Rolf Niedermeier

arxiv:1709.02850 v2 · 2017-09-08 · cs.DS · cs.CC · cs.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F5FUBQSPHLFY7YM3BTL6UQIJHI}

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	2026-05-18T00:30:00.158616Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f4b40c24f3acb8fe19b0cd7ea41093a16080e796d0864fec94449cda6a2a4bf

Aliases

arxiv: 1709.02850 · arxiv_version: 1709.02850v2 · doi: 10.48550/arxiv.1709.02850 · pith_short_12: F5FUBQSPHLFY · pith_short_16: F5FUBQSPHLFY7YM3 · pith_short_8: F5FUBQSP

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/F5FUBQSPHLFY7YM3BTL6UQIJHI \
  | 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: 2f4b40c24f3acb8fe19b0cd7ea41093a16080e796d0864fec94449cda6a2a4bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b81c998f3efdca91d68345dc877dcd43505487a9a664cbd3d4ba87d8d7d5aa0a",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-09-08T20:11:50Z",
    "title_canon_sha256": "4b8af68ebca6e5fe0bc4a7cfba07e8a067d718a0f65a11854a056ca058b47ac1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02850",
    "kind": "arxiv",
    "version": 2
  }
}