Pith Number

pith:ZXV2ZXHY

pith:2017:ZXV2ZXHYXSMSNT73TZF7ARPAPB

not attested not anchored not stored refs pending

On the connective eccentricity index of two types of trees

Hanyuan Deng, Lingyao Jiang, Zikai Tang

arxiv:1702.04608 v2 · 2017-02-15 · 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{ZXV2ZXHYXSMSNT73TZF7ARPAPB}

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	2026-05-18T00:50:34.931153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdebacdcf8bc9926cffb9e4bf045e07871e91469f6750b0890cf2a9c283b56fe

Aliases

arxiv: 1702.04608 · arxiv_version: 1702.04608v2 · doi: 10.48550/arxiv.1702.04608 · pith_short_12: ZXV2ZXHYXSMS · pith_short_16: ZXV2ZXHYXSMSNT73 · pith_short_8: ZXV2ZXHY

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/ZXV2ZXHYXSMSNT73TZF7ARPAPB \
  | 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: cdebacdcf8bc9926cffb9e4bf045e07871e91469f6750b0890cf2a9c283b56fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f8dcfd579d2be20309c18234e5e46589a00ea3a2213041a6f4c73bc8e526216",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-02-15T13:54:31Z",
    "title_canon_sha256": "ff355dffa2e39b26f4e3732a67e4bd4ccc5bc859bb2ec52561f3d48d8743d63a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.04608",
    "kind": "arxiv",
    "version": 2
  }
}