Pith Number

pith:K6WIBEWL

pith:2019:K6WIBEWLMNXV3YC4JFHZRNGQEF

not attested not anchored not stored refs pending

A Computational Comparison of Optimization Methods for the Golomb Ruler Problem

Burak Kocuk, Willem-Jan van Hoeve

arxiv:1902.08660 v1 · 2019-02-22 · 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{K6WIBEWLMNXV3YC4JFHZRNGQEF}

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	2026-05-17T23:43:49.841950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57ac8092cb636f5de05c494f98b4d0217a7aecbf0574e7927b1d3d55bf398b8a

Aliases

arxiv: 1902.08660 · arxiv_version: 1902.08660v1 · doi: 10.48550/arxiv.1902.08660 · pith_short_12: K6WIBEWLMNXV · pith_short_16: K6WIBEWLMNXV3YC4 · pith_short_8: K6WIBEWL

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/K6WIBEWLMNXV3YC4JFHZRNGQEF \
  | 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: 57ac8092cb636f5de05c494f98b4d0217a7aecbf0574e7927b1d3d55bf398b8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fb7a9b0a1ed00c909bd9bfabff21cc6b6f4a7146f0ab893fc731987504236bf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-02-22T20:15:02Z",
    "title_canon_sha256": "3f58024760321148f965f413ec7744ece73a29ac82d2dc789462da11a67e158d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08660",
    "kind": "arxiv",
    "version": 1
  }
}