Pith Number

pith:5RZYHWLT

pith:2018:5RZYHWLTSDRU7BO42CCBHWDQ76

not attested not anchored not stored refs pending

On the Parameterized Complexity of Graph Modification to First-Order Logic Properties

Dimitrios M. Thilikos, Fedor V. Fomin, Petr A. Golovach

arxiv:1805.04375 v4 · 2018-05-11 · cs.DS · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5RZYHWLTSDRU7BO42CCBHWDQ76}

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	2026-05-17T23:52:42.025893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec7383d97390e34f85dcd08413d870ff8d74212c50ccfe16236956f120ffef5f

Aliases

arxiv: 1805.04375 · arxiv_version: 1805.04375v4 · doi: 10.48550/arxiv.1805.04375 · pith_short_12: 5RZYHWLTSDRU · pith_short_16: 5RZYHWLTSDRU7BO4 · pith_short_8: 5RZYHWLT

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/5RZYHWLTSDRU7BO42CCBHWDQ76 \
  | 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: ec7383d97390e34f85dcd08413d870ff8d74212c50ccfe16236956f120ffef5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11584fa0cd406b4d41f5616d36c20887ff42ffcd94125bf5ed86821019eb1f67",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-05-11T13:09:47Z",
    "title_canon_sha256": "ab52f119eebb0c4fd68b6e0635f9ce29e6c0a1b3a5ebd74b13c57e0e29951ef8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.04375",
    "kind": "arxiv",
    "version": 4
  }
}