Pith Number

pith:MV7EFIUH

pith:2018:MV7EFIUHCUVML2HTVHC5CRGLMM

not attested not anchored not stored refs pending

Energy of a Vertex

Jorge Fernandez Hidalgo, Octavio Arizmendi, Oliver Juarez-Romero

arxiv:1805.05483 v1 · 2018-05-14 · 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{MV7EFIUHCUVML2HTVHC5CRGLMM}

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	2026-05-18T00:16:00.497499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

657e42a287152ac5e8f3a9c5d144cb6310a49347907b434998d04891f80c2059

Aliases

arxiv: 1805.05483 · arxiv_version: 1805.05483v1 · doi: 10.48550/arxiv.1805.05483 · pith_short_12: MV7EFIUHCUVM · pith_short_16: MV7EFIUHCUVML2HT · pith_short_8: MV7EFIUH

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/MV7EFIUHCUVML2HTVHC5CRGLMM \
  | 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: 657e42a287152ac5e8f3a9c5d144cb6310a49347907b434998d04891f80c2059

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c6eaa87f81d5f2b16b1e454045878ef6efeea3ef9bee5754c539f464b389ad5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-05-14T22:33:09Z",
    "title_canon_sha256": "6a689ce08159a4d1747d1577f216dfa72eedbe4506345ba1f9190110588fc3ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.05483",
    "kind": "arxiv",
    "version": 1
  }
}