Pith Number

pith:ZYQ27JIC

pith:2014:ZYQ27JIC5IVEMYPQZB533RFITH

not attested not anchored not stored refs pending

Lov\'asz-Schrijver SDP-operator, near-perfect graphs and near-bipartite graphs

G. Nasini, L. Tun\c{c}el, M. Escalante, S. Bianchi

arxiv:1411.2069 v1 · 2014-11-08 · cs.DM · 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{ZYQ27JIC5IVEMYPQZB533RFITH}

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	2026-05-18T02:38:19.542926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce21afa502ea2a4661f0c87bbdc4a899d054ea184351d668e17814c27950f670

Aliases

arxiv: 1411.2069 · arxiv_version: 1411.2069v1 · doi: 10.48550/arxiv.1411.2069 · pith_short_12: ZYQ27JIC5IVE · pith_short_16: ZYQ27JIC5IVEMYPQ · pith_short_8: ZYQ27JIC

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/ZYQ27JIC5IVEMYPQZB533RFITH \
  | 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: ce21afa502ea2a4661f0c87bbdc4a899d054ea184351d668e17814c27950f670

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bba3d8f1d78492b9a983b5676c4bfb16ea46d4a15b117f2512adc341c73759df",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2014-11-08T01:56:11Z",
    "title_canon_sha256": "388606430d0d47aea78dcbc9daa5a42b8d4041dd24539f13e3d745c16f15f2a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.2069",
    "kind": "arxiv",
    "version": 1
  }
}