Pith Number

pith:752LJHLT

pith:2014:752LJHLTTB2D42DAV3UJLOVTHB

not attested not anchored not stored refs pending

Solving the Pricing Problem in a Branch-and-Price Algorithm for Graph Coloring using Zero-Suppressed Binary Decision Diagrams

David R. Morrison, Edward C. Sewell, Sheldon H. Jacobson

arxiv:1401.5820 v2 · 2014-01-22 · cs.DS · 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{752LJHLTTB2D42DAV3UJLOVTHB}

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	2026-05-18T01:37:11.587387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff74b49d7398743e6860aee895bab33876c3a9953dadbb014197cd9799194feb

Aliases

arxiv: 1401.5820 · arxiv_version: 1401.5820v2 · doi: 10.48550/arxiv.1401.5820 · pith_short_12: 752LJHLTTB2D · pith_short_16: 752LJHLTTB2D42DA · pith_short_8: 752LJHLT

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/752LJHLTTB2D42DAV3UJLOVTHB \
  | 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: ff74b49d7398743e6860aee895bab33876c3a9953dadbb014197cd9799194feb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37d4b4cf969c79f58f14f0527ca9ea16026078f0ee841dae775d37d3f5aa1b60",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-01-22T22:34:21Z",
    "title_canon_sha256": "a137fa1ecfbb90d896eca38280c4a117e35b4dd8922aac87cd3e7d8fd33cc9b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.5820",
    "kind": "arxiv",
    "version": 2
  }
}