Pith Number

pith:DSJPPPU3

pith:2018:DSJPPPU3NFI6Q7IJUT5NKCGITI

not attested not anchored not stored refs pending

Neighborhood-Prime Labelings of Trees and Other Classes of Graphs

Malori Cloys, N. Bradley Fox

arxiv:1801.01802 v1 · 2018-01-05 · 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{DSJPPPU3NFI6Q7IJUT5NKCGITI}

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	2026-05-18T00:26:40.945391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c92f7be9b6951e87d09a4fad508c89a2b58c4f90f036997c629087f1c1bf4ed

Aliases

arxiv: 1801.01802 · arxiv_version: 1801.01802v1 · doi: 10.48550/arxiv.1801.01802 · pith_short_12: DSJPPPU3NFI6 · pith_short_16: DSJPPPU3NFI6Q7IJ · pith_short_8: DSJPPPU3

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/DSJPPPU3NFI6Q7IJUT5NKCGITI \
  | 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: 1c92f7be9b6951e87d09a4fad508c89a2b58c4f90f036997c629087f1c1bf4ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c3327dbb2af2f2304d2bda71f7377306b8b2fba6cf9404f9ebd6010644d2167",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-01-05T15:51:43Z",
    "title_canon_sha256": "17bcd32b57bc4cf2ef22dbec5a481075e578e797a7f2b674a8d7624b6a119d13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.01802",
    "kind": "arxiv",
    "version": 1
  }
}