Pith Number

pith:XPR5VRCV

pith:2016:XPR5VRCVLDD2G6BUOHHVPQMNQ7

not attested not anchored not stored refs pending

Approximation Schemes for Geometric Coverage Problems

Alexander Ravsky, Joachim Spoerhase, Minati De, Steven Chaplick

arxiv:1607.06665 v3 · 2016-07-22 · cs.CG · 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{XPR5VRCVLDD2G6BUOHHVPQMNQ7}

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	2026-05-18T00:50:09.605660Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbe3dac45558c7a3783471cf57c18d87ea8e5e05ee8b7d31d31578059c70c323

Aliases

arxiv: 1607.06665 · arxiv_version: 1607.06665v3 · doi: 10.48550/arxiv.1607.06665 · pith_short_12: XPR5VRCVLDD2 · pith_short_16: XPR5VRCVLDD2G6BU · pith_short_8: XPR5VRCV

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/XPR5VRCVLDD2G6BUOHHVPQMNQ7 \
  | 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: bbe3dac45558c7a3783471cf57c18d87ea8e5e05ee8b7d31d31578059c70c323

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6f02c836ac8c2436b233300f3ea625a9d00f9ff8110f5fe5047389fc0a9b520",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2016-07-22T13:02:16Z",
    "title_canon_sha256": "835bd1c47b3839bbef778676549f6b4c8187907315c8eee9cba70cb9a94b1222"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.06665",
    "kind": "arxiv",
    "version": 3
  }
}