Pith Number

pith:UZNKIMYS

pith:2018:UZNKIMYSQXYPSQ6PICZYW7K2VI

not attested not anchored not stored refs pending

Mildly Exponential Time Approximation Algorithms for Vertex Cover, Uniform Sparsest Cut and Related Problems

Luca Trevisan, Pasin Manurangsi

arxiv:1807.09898 v1 · 2018-07-25 · 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{UZNKIMYSQXYPSQ6PICZYW7K2VI}

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	2026-05-18T00:09:46.205693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a65aa4331285f0f943cf40b38b7d5aaa33dccdb52fa9c8e758d3d9ab9b266e77

Aliases

arxiv: 1807.09898 · arxiv_version: 1807.09898v1 · doi: 10.48550/arxiv.1807.09898 · pith_short_12: UZNKIMYSQXYP · pith_short_16: UZNKIMYSQXYPSQ6P · pith_short_8: UZNKIMYS

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/UZNKIMYSQXYPSQ6PICZYW7K2VI \
  | 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: a65aa4331285f0f943cf40b38b7d5aaa33dccdb52fa9c8e758d3d9ab9b266e77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c5520b93555bc615334a45c98699b9ceae3c5e17a1218ce969e551f6b745ca9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-07-25T23:26:43Z",
    "title_canon_sha256": "41eff3ca060e953bd11762e3f246a9a433b98231267eed8e5c9cc9d01ec82730"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09898",
    "kind": "arxiv",
    "version": 1
  }
}