Pith Number

pith:DR7D4W6Y

pith:2019:DR7D4W6YVKURYM4B7OR4OJHAJJ

not attested not anchored not stored refs pending

Constructing infinitely many half-arc-transitive covers of tetravalent graphs

Binzhou Xia, Pablo Spiga

arxiv:1912.10695 v2 · 2019-12-23 · math.CO · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DR7D4W6YVKURYM4B7OR4OJHAJJ}

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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.

Cited by

1 paper in Pith

Tetravalent half-arc-transitive graphs with unbounded nonabelian vertex stabilizers

Receipt and verification

First computed	2026-07-05T01:53:47.686329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c7e3e5bd8aaa91c3381fba3c724e04a78e5fcbf7ade747c610c82bd22722de6

Aliases

arxiv: 1912.10695 · arxiv_version: 1912.10695v2 · doi: 10.48550/arxiv.1912.10695 · pith_short_12: DR7D4W6YVKUR · pith_short_16: DR7D4W6YVKURYM4B · pith_short_8: DR7D4W6Y

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/DR7D4W6YVKURYM4B7OR4OJHAJJ \
  | 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: 1c7e3e5bd8aaa91c3381fba3c724e04a78e5fcbf7ade747c610c82bd22722de6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19d7fa0c398d23c1c0c688f3202795c8b3a5551ddb0830369035f5ed99e3e740",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-12-23T09:15:39Z",
    "title_canon_sha256": "294ff9b11b95d3723d7c93da1d83c8ec524820078971de1bde9712146e4f83c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.10695",
    "kind": "arxiv",
    "version": 2
  }
}