Pith Number

pith:P6H57KR4

pith:2019:P6H57KR4JYPJMK66H3KXZCCEID

not attested not anchored not stored refs pending

FPT Algorithms for Conflict-free Coloring of Graphs and Chromatic Terrain Guarding

Akanksha Agrawal, Dolly Yadav, Meghana M Reddy, Pradeesha Ashok, Saket Saurabh

arxiv:1905.01822 v1 · 2019-05-06 · cs.DS · cs.CC · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P6H57KR4JYPJMK66H3KXZCCEID}

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	2026-05-17T23:46:57.325830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f8fdfaa3c4e1e962bde3ed57c884440fe761194f6f1ae0250d432edc1d42da7

Aliases

arxiv: 1905.01822 · arxiv_version: 1905.01822v1 · doi: 10.48550/arxiv.1905.01822 · pith_short_12: P6H57KR4JYPJ · pith_short_16: P6H57KR4JYPJMK66 · pith_short_8: P6H57KR4

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/P6H57KR4JYPJMK66H3KXZCCEID \
  | 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: 7f8fdfaa3c4e1e962bde3ed57c884440fe761194f6f1ae0250d432edc1d42da7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82e8ca0d35d87f8ab757f4e540a8ce87bf47a6832d401903e4bcb30517f8fe6d",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-05-06T04:29:28Z",
    "title_canon_sha256": "ea3c5b69e4a03e69fc21f35891375508479619ce30f457f1a735f92edaf9623b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.01822",
    "kind": "arxiv",
    "version": 1
  }
}