Pith Number

pith:AEOSRZNU

pith:2017:AEOSRZNUJ4Z3P47ARYII6TTK6R

not attested not anchored not stored refs pending

An FPTAS for the parametric knapsack problem

Michael Holzhauser, Sven O. Krumke

arxiv:1701.07822 v2 · 2017-01-26 · cs.DS · cs.CC · 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{AEOSRZNUJ4Z3P47ARYII6TTK6R}

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	2026-05-18T00:51:59.548117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

011d28e5b44f33b7f3e08e108f4e6af47d5ce136728178a2f1b79151ec68fe1a

Aliases

arxiv: 1701.07822 · arxiv_version: 1701.07822v2 · doi: 10.48550/arxiv.1701.07822 · pith_short_12: AEOSRZNUJ4Z3 · pith_short_16: AEOSRZNUJ4Z3P47A · pith_short_8: AEOSRZNU

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/AEOSRZNUJ4Z3P47ARYII6TTK6R \
  | 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: 011d28e5b44f33b7f3e08e108f4e6af47d5ce136728178a2f1b79151ec68fe1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac7a843eee2de538fbaf61afae0881c8701884ae921f339e410759f84fef40c2",
    "cross_cats_sorted": [
      "cs.CC",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-01-26T18:58:02Z",
    "title_canon_sha256": "a93c59e10683f885c26587872cf2848b1beaf327f3e0f05551621302a347a834"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.07822",
    "kind": "arxiv",
    "version": 2
  }
}