Pith Number

pith:DANHX5KF

pith:2018:DANHX5KFY4SUJULPFFLASEUAXS

not attested not anchored not stored refs pending

Non-Monochromatic and Conflict-Free Coloring on Tree Spaces and Planar Network Spaces

Aleksandar Markovic, Boris Aronov, Gerhard Woeginger, Mark de Berg

arxiv:1805.02538 v1 · 2018-05-07 · cs.DM · cs.CG · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DANHX5KFY4SUJULPFFLASEUAXS}

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	2026-05-18T00:16:39.694720Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

181a7bf545c72544d16f2956091280bcbc90de64b5226e10a59911ca54c4a868

Aliases

arxiv: 1805.02538 · arxiv_version: 1805.02538v1 · doi: 10.48550/arxiv.1805.02538 · pith_short_12: DANHX5KFY4SU · pith_short_16: DANHX5KFY4SUJULP · pith_short_8: DANHX5KF

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/DANHX5KFY4SUJULPFFLASEUAXS \
  | 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: 181a7bf545c72544d16f2956091280bcbc90de64b5226e10a59911ca54c4a868

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e8f90b8344ed8e820715628c35e7138b789ca3b4bf9f26d45c170b41e13dbcc",
    "cross_cats_sorted": [
      "cs.CG",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2018-05-07T14:19:08Z",
    "title_canon_sha256": "02ca3b25ad42670e2812928c2df880e6586cfeb8c3dea68fb5791d65c046be1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.02538",
    "kind": "arxiv",
    "version": 1
  }
}