Pith Number

pith:U44I5KTD

pith:2018:U44I5KTDDGQK5IE37LTPMADHZ2

not attested not anchored not stored refs pending

Assigning Weights to Minimize the Covering Radius in the Plane

Eunjin Oh, Hee-Kap Ahn

arxiv:1804.00241 v1 · 2018-04-01 · 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{U44I5KTDDGQK5IE37LTPMADHZ2}

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	2026-05-18T00:19:37.932565Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7388eaa6319a0aea09bfae6f60067ce9e325f0bdd7850cb03a1d82f23bcbf2b

Aliases

arxiv: 1804.00241 · arxiv_version: 1804.00241v1 · doi: 10.48550/arxiv.1804.00241 · pith_short_12: U44I5KTDDGQK · pith_short_16: U44I5KTDDGQK5IE3 · pith_short_8: U44I5KTD

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/U44I5KTDDGQK5IE37LTPMADHZ2 \
  | 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: a7388eaa6319a0aea09bfae6f60067ce9e325f0bdd7850cb03a1d82f23bcbf2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c415c31451da640794fec461b8be133401f5234709aadd5e6b54dc3ac54c2a00",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2018-04-01T01:35:31Z",
    "title_canon_sha256": "0774e2908b295650ad042de2a9956b1827d4569c5acc6b6be4a9d4457a765078"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.00241",
    "kind": "arxiv",
    "version": 1
  }
}