Pith Number

pith:DV5BPTT5

pith:2019:DV5BPTT5YZHWCDKKMX5E3FFE2N

not attested not anchored not stored refs pending

Complexity of fall coloring for restricted graph classes

Christodoulos Mitillos, Juho Lauri

arxiv:1905.04695 v1 · 2019-05-12 · cs.CC · cs.DM · 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{DV5BPTT5YZHWCDKKMX5E3FFE2N}

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	2026-05-17T23:46:23.918521Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d7a17ce7dc64f610d4a65fa4d94a4d375508331fdb3c1ed069693bc8e941df0

Aliases

arxiv: 1905.04695 · arxiv_version: 1905.04695v1 · doi: 10.48550/arxiv.1905.04695 · pith_short_12: DV5BPTT5YZHW · pith_short_16: DV5BPTT5YZHWCDKK · pith_short_8: DV5BPTT5

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/DV5BPTT5YZHWCDKKMX5E3FFE2N \
  | 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: 1d7a17ce7dc64f610d4a65fa4d94a4d375508331fdb3c1ed069693bc8e941df0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9ab422faf5985ae614b6840877f474219d0fd8c4a4044df55ed3654217d54c1",
    "cross_cats_sorted": [
      "cs.DM",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2019-05-12T11:20:24Z",
    "title_canon_sha256": "928845f4b627e86ff68dea3c1aa31e9289b36689a36b24b77a381d8d550ad1cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.04695",
    "kind": "arxiv",
    "version": 1
  }
}