Pith Number

pith:QMQO6KWO

pith:2017:QMQO6KWOXV4Y7N2LGX6CFSXLJC

not attested not anchored not stored refs pending

Complexity and Inapproximability Results for Parallel Task Scheduling and Strip Packing

Klaus Jansen, Lars Schmarje, Malin Rau, S\"oren Henning

arxiv:1705.04587 v1 · 2017-05-12 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QMQO6KWOXV4Y7N2LGX6CFSXLJC}

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	2026-05-18T00:44:37.721110Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8320ef2acebd798fb74b35fc22caeb489fca6cfb11bb1b7cb41c7b07db8dda37

Aliases

arxiv: 1705.04587 · arxiv_version: 1705.04587v1 · doi: 10.48550/arxiv.1705.04587 · pith_short_12: QMQO6KWOXV4Y · pith_short_16: QMQO6KWOXV4Y7N2L · pith_short_8: QMQO6KWO

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/QMQO6KWOXV4Y7N2LGX6CFSXLJC \
  | 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: 8320ef2acebd798fb74b35fc22caeb489fca6cfb11bb1b7cb41c7b07db8dda37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d68cdcc3a6a549bc79170b243a851d49b6a189fda6f193461ff1858ff47ccd1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2017-05-12T14:22:53Z",
    "title_canon_sha256": "908f66dfb73f7c27d859659de6821c7a1bcb1e32822abfdcf0c4f0bd6a18fdf2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.04587",
    "kind": "arxiv",
    "version": 1
  }
}