Pith Number

pith:YY45BW42

pith:2019:YY45BW42M6FXBM7QAZ53BWWT7Z

not attested not anchored not stored refs pending

Partitioning sparse graphs into an independent set and a graph with bounded size components

Fran\c{c}ois Dross, Ilkyoo Choi, Pascal Ochem

arxiv:1905.02123 v1 · 2019-05-06 · cs.DM · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YY45BW42M6FXBM7QAZ53BWWT7Z}

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	2026-05-17T23:46:56.296848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c639d0db9a678b70b3f0067bb0dad3fe7d882d45be610d9fad5d05b9586d7fb2

Aliases

arxiv: 1905.02123 · arxiv_version: 1905.02123v1 · doi: 10.48550/arxiv.1905.02123 · pith_short_12: YY45BW42M6FX · pith_short_16: YY45BW42M6FXBM7Q · pith_short_8: YY45BW42

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/YY45BW42M6FXBM7QAZ53BWWT7Z \
  | 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: c639d0db9a678b70b3f0067bb0dad3fe7d882d45be610d9fad5d05b9586d7fb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a35e51e179ec693b5e0841ae3ebaa79ac9367ab21b841a749d01c2be8ebdcb6",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2019-05-06T16:17:21Z",
    "title_canon_sha256": "68281a2b82c043941d996fdd516ceab42d4a4a3aedebd65e88b0a1202e533aa1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.02123",
    "kind": "arxiv",
    "version": 1
  }
}