Pith Number

pith:V5PPUOJY

pith:2009:V5PPUOJYOWXKHKILIVWI6UPFG2

not attested not anchored not stored refs pending

Polynomial Time Algorithms for Minimum Energy Scheduling

Christoph Durr, Marek Chrobak, Philippe Baptiste

arxiv:0908.3505 v2 · 2009-08-24 · 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{V5PPUOJYOWXKHKILIVWI6UPFG2}

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	2026-05-18T04:41:26.222986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af5efa393875aea3a90b456c8f51e536ac97e26753e130be0542e673ccadffab

Aliases

arxiv: 0908.3505 · arxiv_version: 0908.3505v2 · doi: 10.48550/arxiv.0908.3505 · pith_short_12: V5PPUOJYOWXK · pith_short_16: V5PPUOJYOWXKHKIL · pith_short_8: V5PPUOJY

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/V5PPUOJYOWXKHKILIVWI6UPFG2 \
  | 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: af5efa393875aea3a90b456c8f51e536ac97e26753e130be0542e673ccadffab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42d1ab20f2acf05971c028fe43c533b65e5927c491fe3266cbc5c55371a2ff4e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2009-08-24T21:44:45Z",
    "title_canon_sha256": "28c53e73b829ef093f8a31c1103536d0d31c33b2bce2c28ee1b78448dcfe6a94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3505",
    "kind": "arxiv",
    "version": 2
  }
}