Pith Number

pith:U4KDRSRO

pith:2019:U4KDRSROM6MWKALS5JR77KWCDP

not attested not anchored not stored refs pending

On Cycle Transversals and Their Connected Variants in the Absence of a Small Linear Forest

Carl Feghali, Dani\"el Paulusma, Giacomo Paesani, Konrad K. Dabrowski, Matthew Johnson, Pawe{\l} Rz\k{a}\.zewski

arxiv:1908.00491 v1 · 2019-08-01 · 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{U4KDRSROM6MWKALS5JR77KWCDP}

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	2026-07-04T23:51:01.065876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a71438ca2e6799650172ea63ffaac21bdb613d5ba558f0d0bc0703e9fc416de4

Aliases

arxiv: 1908.00491 · arxiv_version: 1908.00491v1 · doi: 10.48550/arxiv.1908.00491 · pith_short_12: U4KDRSROM6MW · pith_short_16: U4KDRSROM6MWKALS · pith_short_8: U4KDRSRO

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/U4KDRSROM6MWKALS5JR77KWCDP \
  | 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: a71438ca2e6799650172ea63ffaac21bdb613d5ba558f0d0bc0703e9fc416de4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c204862be0592ea142147924ee9d389c21eee14054b1d3879a1f9fde747ea1bd",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-08-01T16:36:43Z",
    "title_canon_sha256": "51c0b2ad2cd2fc570d3b282b29ea6cf4abe8f9eb94c743701292eac590339c69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.00491",
    "kind": "arxiv",
    "version": 1
  }
}