Pith Number

pith:PSBPDG56

pith:2016:PSBPDG56MWUXW42TJVEV5GETK2

not attested not anchored not stored refs pending

Precedence-constrained scheduling problems parameterized by partial order width

Christian Komusiewicz, Gerhard J. Woeginger, Laurent Bulteau, Nimrod Talmon, Ren\'e van Bevern, Robert Bredereck

arxiv:1605.00901 v1 · 2016-05-03 · math.OC · cs.DM · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PSBPDG56MWUXW42TJVEV5GETK2}

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	2026-05-18T01:15:47.710892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c82f19bbe65a97b73534d495e989356b9ce4adefb7ec1cf787dda9a19e7a139

Aliases

arxiv: 1605.00901 · arxiv_version: 1605.00901v1 · doi: 10.48550/arxiv.1605.00901 · pith_short_12: PSBPDG56MWUX · pith_short_16: PSBPDG56MWUXW42T · pith_short_8: PSBPDG56

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/PSBPDG56MWUXW42TJVEV5GETK2 \
  | 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: 7c82f19bbe65a97b73534d495e989356b9ce4adefb7ec1cf787dda9a19e7a139

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75ba8b8b77aafc6f724297ef5f66d2e588df9ffc47f4b21a28ca95677ab2de8f",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2016-05-03T13:37:56Z",
    "title_canon_sha256": "534aad6ab4bbdd891e5570483a9d85ea2b2e1f603a69b78b27aa3dbc32b7156f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.00901",
    "kind": "arxiv",
    "version": 1
  }
}