Pith Number

pith:NXTFHYRY

pith:2018:NXTFHYRYBN4AOUT3DPH4MYBITY

not attested not anchored not stored refs pending

Lattice Path Matroids are 3-Colorable

Immanuel Albrecht, Winfried Hochst\"attler

arxiv:1807.00585 v1 · 2018-07-02 · 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{NXTFHYRYBN4AOUT3DPH4MYBITY}

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	2026-05-18T00:11:52.092400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6de653e2380b7807527b1bcfc660289e2a2b5e6c8e1a922c5ceea65b653d8a3b

Aliases

arxiv: 1807.00585 · arxiv_version: 1807.00585v1 · doi: 10.48550/arxiv.1807.00585 · pith_short_12: NXTFHYRYBN4A · pith_short_16: NXTFHYRYBN4AOUT3 · pith_short_8: NXTFHYRY

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/NXTFHYRYBN4AOUT3DPH4MYBITY \
  | 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: 6de653e2380b7807527b1bcfc660289e2a2b5e6c8e1a922c5ceea65b653d8a3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63763e64943c006dc8d158acb7528981b480d71446195f7cf1ed48ad7015966c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-07-02T10:38:23Z",
    "title_canon_sha256": "d7b323928d842856211df5de4139f9d9f9ebb96ef132bf5cb0de1530a30f764b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.00585",
    "kind": "arxiv",
    "version": 1
  }
}