Pith Number

pith:NMJ25DOF

pith:2012:NMJ25DOFPLHEREU2KGBPJFAZFQ

not attested not anchored not stored refs pending

Computing Hosoya polynomials of graphs from primary subgraphs

Emeric Deutsch, Sandi Klavzar

arxiv:1212.3179 v1 · 2012-12-13 · 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{NMJ25DOFPLHEREU2KGBPJFAZFQ}

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	2026-05-18T03:38:33.609058Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b13ae8dc57ace48929a5182f494192c28f119dd30c2c0e30700c9c5d6353606

Aliases

arxiv: 1212.3179 · arxiv_version: 1212.3179v1 · doi: 10.48550/arxiv.1212.3179 · pith_short_12: NMJ25DOFPLHE · pith_short_16: NMJ25DOFPLHEREU2 · pith_short_8: NMJ25DOF

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/NMJ25DOFPLHEREU2KGBPJFAZFQ \
  | 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: 6b13ae8dc57ace48929a5182f494192c28f119dd30c2c0e30700c9c5d6353606

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1dfb18cf0a8073e2b4e8686bc14e0352758a21a64d0c5990abf2a292d24efb68",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-12-13T14:10:58Z",
    "title_canon_sha256": "232ccbc0180199a2f3cd3f545e1baf51f8229441bbb548f1e34e0ba70b15e0d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.3179",
    "kind": "arxiv",
    "version": 1
  }
}