Pith Number

pith:RTKZTPKX

pith:2015:RTKZTPKXY37OOSSJI7RFJJU42C

not attested not anchored not stored refs pending

Faster Exact and Parameterized Algorithm for Feedback Vertex Set in Tournaments

Daniel Lokshtanov, Mithilesh Kumar

arxiv:1510.07676 v1 · 2015-10-26 · 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{RTKZTPKXY37OOSSJI7RFJJU42C}

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	2026-05-18T01:29:12.905621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8cd599bd57c6fee74a4947e254a69cd0858659256e60a2949eaa00397bb175bd

Aliases

arxiv: 1510.07676 · arxiv_version: 1510.07676v1 · doi: 10.48550/arxiv.1510.07676 · pith_short_12: RTKZTPKXY37O · pith_short_16: RTKZTPKXY37OOSSJ · pith_short_8: RTKZTPKX

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/RTKZTPKXY37OOSSJI7RFJJU42C \
  | 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: 8cd599bd57c6fee74a4947e254a69cd0858659256e60a2949eaa00397bb175bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "426e836f1d6b82149d79b9f3eb400a131e98a7c102b5b2cdb9f08020cf72cf37",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-10-26T20:54:31Z",
    "title_canon_sha256": "77756e87acb6701332c3dd08dad04c311d6371d97b0a4c3b0c8891ff7aeae626"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.07676",
    "kind": "arxiv",
    "version": 1
  }
}