Pith Number

pith:ZA53DVPL

pith:2017:ZA53DVPLCXP5VDWBG5PNGFGE7J

not attested not anchored not stored refs pending

Connectivity keeping stars or double-stars in 2-connected graphs

Hong-Jian Lai, Jixiang Meng, Liqiong Xu, Yingzhi Tian

arxiv:1707.01165 v2 · 2017-07-04 · 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{ZA53DVPLCXP5VDWBG5PNGFGE7J}

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	2026-05-18T00:39:31.069444Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c83bb1d5eb15dfda8ec1375ed314c4fa79a6c6cd41a3312a2f1690c227aa38a1

Aliases

arxiv: 1707.01165 · arxiv_version: 1707.01165v2 · doi: 10.48550/arxiv.1707.01165 · pith_short_12: ZA53DVPLCXP5 · pith_short_16: ZA53DVPLCXP5VDWB · pith_short_8: ZA53DVPL

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/ZA53DVPLCXP5VDWBG5PNGFGE7J \
  | 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: c83bb1d5eb15dfda8ec1375ed314c4fa79a6c6cd41a3312a2f1690c227aa38a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d4b6bd0092aaf83692a509f8c0227958167d6905325abb98b3538ee304fe3c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-07-04T22:12:57Z",
    "title_canon_sha256": "b6aa1fc720b263335fa94823523546093b3118ba396992d8d82e2a79caba806b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.01165",
    "kind": "arxiv",
    "version": 2
  }
}