Pith Number

pith:FULQAVMC

pith:2011:FULQAVMC5BFGQDWWJZ2BXBBJ32

not attested not anchored not stored refs pending

Fixed parameter algorithms for restricted coloring problems

Ana Karolinna Maia, Cl\'audia Linhares-Sales, Nicolas Martins, Rudini Menezes Sampaio, Victor Campos

arxiv:1107.0056 v2 · 2011-06-30 · cs.DM · cs.CC · 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{FULQAVMC5BFGQDWWJZ2BXBBJ32}

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	2026-05-18T04:13:15.746672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d17005582e84a680ed64e741b8429de855283cb861f83b9d41cc7b84529ca56

Aliases

arxiv: 1107.0056 · arxiv_version: 1107.0056v2 · doi: 10.48550/arxiv.1107.0056 · pith_short_12: FULQAVMC5BFG · pith_short_16: FULQAVMC5BFGQDWW · pith_short_8: FULQAVMC

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/FULQAVMC5BFGQDWWJZ2BXBBJ32 \
  | 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: 2d17005582e84a680ed64e741b8429de855283cb861f83b9d41cc7b84529ca56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06231f127198cd591891f3ecb3826787241b76966f7b56dd444a50ece31aa5cf",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2011-06-30T20:45:34Z",
    "title_canon_sha256": "81026f70ff2813dc5dbba9e7c39e4b631bf7430c16ac60fec7c2effc701bb8ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.0056",
    "kind": "arxiv",
    "version": 2
  }
}