Pith Number

pith:ZVHOXCAK

pith:2015:ZVHOXCAKOXOLINAFRF5EV2ZGH4

not attested not anchored not stored refs pending

The Price of Connectivity for Feedback Vertex Set

Dani\"el Paulusma, Marcin Kami\'nski, Pim van 't Hof, R\'emy Belmonte

arxiv:1510.02639 v1 · 2015-10-09 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZVHOXCAKOXOLINAFRF5EV2ZGH4}

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	2026-05-18T01:30:41.855992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd4eeb880a75dcb43405897a4aeb263f0a957def2525d985ecd5c0c2aa1044e5

Aliases

arxiv: 1510.02639 · arxiv_version: 1510.02639v1 · doi: 10.48550/arxiv.1510.02639 · pith_short_12: ZVHOXCAKOXOL · pith_short_16: ZVHOXCAKOXOLINAF · pith_short_8: ZVHOXCAK

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/ZVHOXCAKOXOLINAFRF5EV2ZGH4 \
  | 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: cd4eeb880a75dcb43405897a4aeb263f0a957def2525d985ecd5c0c2aa1044e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7de29767ec9874cd3413cbb025d2e76ab8c4ab9457b0195f0b5e0eac4034d8c0",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-10-09T11:36:23Z",
    "title_canon_sha256": "aff87a0d75a81742c0a40352b0197c4145a78599c56b56c67a611df2cc685a39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.02639",
    "kind": "arxiv",
    "version": 1
  }
}