Pith Number

pith:7RDYFS67

pith:2018:7RDYFS67XHD6BFTSQ2MXU2F6CE

not attested not anchored not stored refs pending

Disconnected Cuts in Claw-free Graphs

Barnaby Martin, Daniel Paulusma, Erik Jan van Leeuwen

arxiv:1803.03663 v1 · 2018-03-09 · cs.DS · cs.CC · 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{7RDYFS67XHD6BFTSQ2MXU2F6CE}

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	2026-05-18T00:21:38.581451Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc4782cbdfb9c7e0967286997a68be112fb4ab8d01785a6fa2cf8bdf51e73711

Aliases

arxiv: 1803.03663 · arxiv_version: 1803.03663v1 · doi: 10.48550/arxiv.1803.03663 · pith_short_12: 7RDYFS67XHD6 · pith_short_16: 7RDYFS67XHD6BFTS · pith_short_8: 7RDYFS67

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/7RDYFS67XHD6BFTSQ2MXU2F6CE \
  | 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: fc4782cbdfb9c7e0967286997a68be112fb4ab8d01785a6fa2cf8bdf51e73711

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4238c3ed4d1122aa52cb2efca59a3c90bf80c5af365f20b7ccf7c757efd69379",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-03-09T19:23:03Z",
    "title_canon_sha256": "82552824c9feab80cac488a4dc6a458f41a784bc666923dbf284e126faff83aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.03663",
    "kind": "arxiv",
    "version": 1
  }
}