Pith Number

pith:ROZT5DTC

pith:2017:ROZT5DTC4SY3FNCUINVTI7OEG5

not attested not anchored not stored refs pending

An FPTAS for the Knapsack Problem with Parametric Weights

Michael Holzhauser, Sven O. Krumke

arxiv:1703.06048 v1 · 2017-03-17 · 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{ROZT5DTC4SY3FNCUINVTI7OEG5}

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	2026-05-18T00:48:29.617095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8bb33e8e62e4b1b2b454436b347dc43768a8a860b8391435a0ca6188cf0ad1c0

Aliases

arxiv: 1703.06048 · arxiv_version: 1703.06048v1 · doi: 10.48550/arxiv.1703.06048 · pith_short_12: ROZT5DTC4SY3 · pith_short_16: ROZT5DTC4SY3FNCU · pith_short_8: ROZT5DTC

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/ROZT5DTC4SY3FNCUINVTI7OEG5 \
  | 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: 8bb33e8e62e4b1b2b454436b347dc43768a8a860b8391435a0ca6188cf0ad1c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35b8fa8c1762fb3a9063b8a2c7d149e10680863846554dd548747a4d0c3d27c7",
    "cross_cats_sorted": [
      "cs.CC",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-03-17T15:08:17Z",
    "title_canon_sha256": "ec2dffe5b1926f4b5a83a0be627b68ba78be6208a207185587d86ebdb537010e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.06048",
    "kind": "arxiv",
    "version": 1
  }
}