Pith Number

pith:KIXEO5BV

pith:2019:KIXEO5BVCSTG5CSK7NQ7KQZAWW

not attested not anchored not stored refs pending

Oriented coloring on recursively defined digraphs

Carolin Rehs, Dominique Komander, Frank Gurski

arxiv:1904.01570 v2 · 2019-04-02 · 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{KIXEO5BVCSTG5CSK7NQ7KQZAWW}

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	2026-05-17T23:43:42.333928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

522e47743514a66e8a4afb61f54320b5b989546cd2b9ce0e0f1ffc656196501b

Aliases

arxiv: 1904.01570 · arxiv_version: 1904.01570v2 · doi: 10.48550/arxiv.1904.01570 · pith_short_12: KIXEO5BVCSTG · pith_short_16: KIXEO5BVCSTG5CSK · pith_short_8: KIXEO5BV

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/KIXEO5BVCSTG5CSK7NQ7KQZAWW \
  | 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: 522e47743514a66e8a4afb61f54320b5b989546cd2b9ce0e0f1ffc656196501b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a793c414e8155f6b571d9b6e0ec6a6695e415636cbe0c0aecbda860d08bdefed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-04-02T17:58:51Z",
    "title_canon_sha256": "458f9b600af58bbefcbd19955362fa0194a810c688285e4b77429430349309e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01570",
    "kind": "arxiv",
    "version": 2
  }
}