Pith Number

pith:3N4WQCTB

pith:2018:3N4WQCTBLSJAI5OERMOHVWUHBD

not attested not anchored not stored refs pending

Revisiting path-type covering and partitioning problems

Paul Manuel

arxiv:1807.10613 v1 · 2018-07-25 · math.CO · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3N4WQCTBLSJAI5OERMOHVWUHBD}

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	2026-05-18T00:09:40.019161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db79680a615c920475c48b1c7ada8708f700e47a430568d4adfb539aec5b1ec5

Aliases

arxiv: 1807.10613 · arxiv_version: 1807.10613v1 · doi: 10.48550/arxiv.1807.10613 · pith_short_12: 3N4WQCTBLSJA · pith_short_16: 3N4WQCTBLSJAI5OE · pith_short_8: 3N4WQCTB

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/3N4WQCTBLSJAI5OERMOHVWUHBD \
  | 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: db79680a615c920475c48b1c7ada8708f700e47a430568d4adfb539aec5b1ec5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a54cf9f134df1638affee2f505fefffd6d280fa6f554509df58b14fd9c8e820d",
    "cross_cats_sorted": [
      "math.HO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-07-25T10:35:34Z",
    "title_canon_sha256": "df4c66f8b917db449139cf9b6bf9f0e5df43a2513ae531b7d1438bd818caba1c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.10613",
    "kind": "arxiv",
    "version": 1
  }
}