Pith Number

pith:JNUELAPS

pith:2014:JNUELAPSJGKKS3FZKEUA2CKOAF

not attested not anchored not stored refs pending

A Polynomial Kernel for Trivially Perfect Editing

Micha{\l} Pilipczuk, P{\aa}l Gr{\o}n{\aa}s Drange

arxiv:1412.7558 v1 · 2014-12-23 · 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{JNUELAPSJGKKS3FZKEUA2CKOAF}

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	2026-05-18T02:30:33.511345Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b684581f24994a96cb951280d094e017c709a4ec580734ba0950a2298d7e471

Aliases

arxiv: 1412.7558 · arxiv_version: 1412.7558v1 · doi: 10.48550/arxiv.1412.7558 · pith_short_12: JNUELAPSJGKK · pith_short_16: JNUELAPSJGKKS3FZ · pith_short_8: JNUELAPS

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/JNUELAPSJGKKS3FZKEUA2CKOAF \
  | 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: 4b684581f24994a96cb951280d094e017c709a4ec580734ba0950a2298d7e471

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01b50c80fac62c678b42ca61f92a31c8a0e624adae1eb414b5045bb56b272689",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-12-23T21:53:32Z",
    "title_canon_sha256": "30b8b9385ae6567825e3d707322059cfd226833028419df86d9b471d66e2230d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.7558",
    "kind": "arxiv",
    "version": 1
  }
}