Pith Number

pith:ZD2ZTKN4

pith:2017:ZD2ZTKN44CEG73CZ6ZKQZIECQY

not attested not anchored not stored refs pending

Feedback Vertex Set Inspired Kernel for Chordal Vertex Deletion

Akanksha Agrawal, Daniel Lokshtanov, Meirav Zehavi, Pranabendu Misra, Saket Saurabh

arxiv:1707.04917 v1 · 2017-07-16 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZD2ZTKN44CEG73CZ6ZKQZIECQY}

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	2026-05-18T00:40:11.787621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8f599a9bce0886fec59f6550ca082863fe342f0409844a6cf2e0cd95d1e3106

Aliases

arxiv: 1707.04917 · arxiv_version: 1707.04917v1 · doi: 10.48550/arxiv.1707.04917 · pith_short_12: ZD2ZTKN44CEG · pith_short_16: ZD2ZTKN44CEG73CZ · pith_short_8: ZD2ZTKN4

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/ZD2ZTKN44CEG73CZ6ZKQZIECQY \
  | 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: c8f599a9bce0886fec59f6550ca082863fe342f0409844a6cf2e0cd95d1e3106

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9dc21268ba751c11061618ca3e9c7eaf4f4b1d40591862ebab84fa94dea91414",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-07-16T17:22:08Z",
    "title_canon_sha256": "20d254dfada24da2a98ae94e318b77ffce170b8468c9e59d796344b0e8721de8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.04917",
    "kind": "arxiv",
    "version": 1
  }
}