Pith Number

pith:3SEPLUB6

pith:2010:3SEPLUB6PGMMZ5GBANMDTOV4M5

not attested not anchored not stored refs pending

A PTAS for Scheduling with Tree Assignment Restrictions

Ulrich M. Schwarz

arxiv:1009.4529 v1 · 2010-09-23 · 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{3SEPLUB6PGMMZ5GBANMDTOV4M5}

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.

Cited by

1 paper in Pith

Inapproximability Results for Scheduling with Interval and Resource Restrictions

Receipt and verification

First computed	2026-05-18T04:40:30.216248Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc88f5d03e7998ccf4c1035839babc676ff6136f7e611bac122404eac32a2311

Aliases

arxiv: 1009.4529 · arxiv_version: 1009.4529v1 · doi: 10.48550/arxiv.1009.4529 · pith_short_12: 3SEPLUB6PGMM · pith_short_16: 3SEPLUB6PGMMZ5GB · pith_short_8: 3SEPLUB6

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/3SEPLUB6PGMMZ5GBANMDTOV4M5 \
  | 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: dc88f5d03e7998ccf4c1035839babc676ff6136f7e611bac122404eac32a2311

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0411a4e0acfc45db161ba310b9cdd0f494e87870478f6ae3819cf7a366233b49",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2010-09-23T07:12:49Z",
    "title_canon_sha256": "245a4cf796fd56634d9c383fb160854841fc7cc7e1f76122aaa8f0cdd91572f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4529",
    "kind": "arxiv",
    "version": 1
  }
}