Pith Number

pith:RG7TUDT3

pith:2014:RG7TUDT3UUZTFCJDC3QK75O5FL

not attested not anchored not stored refs pending

QPTAS for Geometric Set-Cover Problems via Optimal Separators

Nabil H. Mustafa, Rajiv Raman, Saurabh Ray

arxiv:1403.0835 v2 · 2014-03-04 · cs.CG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RG7TUDT3UUZTFCJDC3QK75O5FL}

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	2026-05-18T02:54:46.471138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89bf3a0e7ba53332892316e0aff5dd2aef6f3d70cda633b891bebcc5964305a4

Aliases

arxiv: 1403.0835 · arxiv_version: 1403.0835v2 · doi: 10.48550/arxiv.1403.0835 · pith_short_12: RG7TUDT3UUZT · pith_short_16: RG7TUDT3UUZTFCJD · pith_short_8: RG7TUDT3

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/RG7TUDT3UUZTFCJDC3QK75O5FL \
  | 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: 89bf3a0e7ba53332892316e0aff5dd2aef6f3d70cda633b891bebcc5964305a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ef09b465e9275e045a51bf5e044e244baa06ee7a1a24280ab81a5542a4f9265",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2014-03-04T16:38:13Z",
    "title_canon_sha256": "00c015bfb0be8f8fea2f56e1e9e5867124e086da91fec87331de9c88ca82af64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.0835",
    "kind": "arxiv",
    "version": 2
  }
}