Pith Number

pith:J5FTYG45

pith:2018:J5FTYG45NFYGZKBAJEBETKUTV4

not attested not anchored not stored refs pending

A Faster FPTAS for #Knapsack

Liran Markin, Oren Weimann, Pawe{\l} Gawrychowski

arxiv:1802.05791 v1 · 2018-02-15 · 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{J5FTYG45NFYGZKBAJEBETKUTV4}

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	2026-05-18T00:23:11.014057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f4b3c1b9d69706ca820490249aa93af1d53b784bca51769aec63e7d3b835ff5

Aliases

arxiv: 1802.05791 · arxiv_version: 1802.05791v1 · doi: 10.48550/arxiv.1802.05791 · pith_short_12: J5FTYG45NFYG · pith_short_16: J5FTYG45NFYGZKBA · pith_short_8: J5FTYG45

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/J5FTYG45NFYGZKBAJEBETKUTV4 \
  | 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: 4f4b3c1b9d69706ca820490249aa93af1d53b784bca51769aec63e7d3b835ff5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7950d4a8544c11ebcbfe72a830056499d21d2b14c326e5bf17abf15e6523738",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-02-15T23:21:58Z",
    "title_canon_sha256": "18dd60831a05e2bfbd6c9576aa071ad2ecae0a216c20d5acb2ec5740fe4c7999"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.05791",
    "kind": "arxiv",
    "version": 1
  }
}