Pith Number

pith:JJMLD2VW

pith:2014:JJMLD2VW4T357YOZIA75G7IL4C

not attested not anchored not stored refs pending

Connectedness and isomorphism properties of the zig-zag product of graphs

Alfredo Donno, Daniele D'Angeli, Ecaterina Sava-Huss

arxiv:1404.4342 v1 · 2014-04-16 · 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{JJMLD2VW4T357YOZIA75G7IL4C}

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	2026-05-18T00:49:04.979458Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a58b1eab6e4f7dfe1d9403fd37d0be0a34447253c1002b12ec762637e963386

Aliases

arxiv: 1404.4342 · arxiv_version: 1404.4342v1 · doi: 10.48550/arxiv.1404.4342 · pith_short_12: JJMLD2VW4T35 · pith_short_16: JJMLD2VW4T357YOZ · pith_short_8: JJMLD2VW

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/JJMLD2VW4T357YOZIA75G7IL4C \
  | 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: 4a58b1eab6e4f7dfe1d9403fd37d0be0a34447253c1002b12ec762637e963386

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f252c4b61296eab572044248823be847a475484ebcb047bad23d0e331e09fd0c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-04-16T18:48:12Z",
    "title_canon_sha256": "1a328e8677d1372e39699cb275b6e129065dffa45ed39b64193bfdc9251a473e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.4342",
    "kind": "arxiv",
    "version": 1
  }
}