Pith Number

pith:GWA6JEIW

pith:2015:GWA6JEIWINCIMYFLAJTSX7BLPG

not attested not anchored not stored refs pending

On the Hardest Problem Formulations for the 0/1 Lasserre Hierarchy

Adam Kurpisz, Monaldo Mastrolilli, Samuli Lepp\"anen

arxiv:1510.01891 v1 · 2015-10-07 · cs.CC · 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{GWA6JEIWINCIMYFLAJTSX7BLPG}

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	2026-05-18T01:30:50.110069Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3581e4911643448660ab02672bfc2b79b9f3393e6daf05baefdab3e5706c45a2

Aliases

arxiv: 1510.01891 · arxiv_version: 1510.01891v1 · doi: 10.48550/arxiv.1510.01891 · pith_short_12: GWA6JEIWINCI · pith_short_16: GWA6JEIWINCIMYFL · pith_short_8: GWA6JEIW

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/GWA6JEIWINCIMYFLAJTSX7BLPG \
  | 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: 3581e4911643448660ab02672bfc2b79b9f3393e6daf05baefdab3e5706c45a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a37086df0399136c2c34733a4ff79eec3b15aa0c8e616eaee38f7e340995906",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2015-10-07T10:57:45Z",
    "title_canon_sha256": "e9c9562999ee2c623deda507d3fe6750c1b598f92183f507ad5d31a37861e194"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.01891",
    "kind": "arxiv",
    "version": 1
  }
}