Pith Number

pith:X2VLF2PG

pith:2019:X2VLF2PG6A34T2HGEDFI4JLORT

not attested not anchored not stored refs pending

Colouring Non-Even Digraphs

Marcelo Garlet Millani, Raphael Steiner, Sebastian Wiederrecht

arxiv:1903.02872 v3 · 2019-03-07 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X2VLF2PG6A34T2HGEDFI4JLORT}

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	2026-05-17T23:45:51.888055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

beaab2e9e6f037c9e8e620ca8e256e8cd9555d78ad2f6b8950fafbdaf13c6744

Aliases

arxiv: 1903.02872 · arxiv_version: 1903.02872v3 · doi: 10.48550/arxiv.1903.02872 · pith_short_12: X2VLF2PG6A34 · pith_short_16: X2VLF2PG6A34T2HG · pith_short_8: X2VLF2PG

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/X2VLF2PG6A34T2HGEDFI4JLORT \
  | 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: beaab2e9e6f037c9e8e620ca8e256e8cd9555d78ad2f6b8950fafbdaf13c6744

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b037a14be136f19bb96bf3cce877f35bc291e70567476075daeb158c66494fc",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-03-07T12:29:41Z",
    "title_canon_sha256": "24f7a1ca2895d1a0ae8ff33072ce61d820bc8d165d6cbbdb4aaa66f06d5fefcd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.02872",
    "kind": "arxiv",
    "version": 3
  }
}