Pith Number

pith:ELDYJVHB

pith:2018:ELDYJVHBTIY7U75CE3IVGZUFCU

not attested not anchored not stored refs pending

On extremal cacti with respect to the edge revised Szeged index

Deming Li, Rong-Xia Hao, Shengjie He

arxiv:1804.06009 v1 · 2018-04-17 · 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{ELDYJVHBTIY7U75CE3IVGZUFCU}

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	2026-05-18T00:18:22.055728Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22c784d4e19a31fa7fa226d15366851534a7034804295756b649f240574a2b28

Aliases

arxiv: 1804.06009 · arxiv_version: 1804.06009v1 · doi: 10.48550/arxiv.1804.06009 · pith_short_12: ELDYJVHBTIY7 · pith_short_16: ELDYJVHBTIY7U75C · pith_short_8: ELDYJVHB

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/ELDYJVHBTIY7U75CE3IVGZUFCU \
  | 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: 22c784d4e19a31fa7fa226d15366851534a7034804295756b649f240574a2b28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d30f81b15369b94c8936bc59e74b1a56fcd7a4dd2d8e89fe73a8c7148e1633a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-04-17T01:32:02Z",
    "title_canon_sha256": "0c8e50be176ecfe872875336683517e4e52863bbb9f88bed376249507b051ccd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.06009",
    "kind": "arxiv",
    "version": 1
  }
}