Pith Number

pith:VPFQRJTA

pith:2017:VPFQRJTAORNCCYDCLLQGGPDK3X

not attested not anchored not stored refs pending

More results on the distance (signless) Laplacian eigenvalues of graphs

Huiqiu Lin, Jie Xue, Jinlong Shu, Kinkar Ch. Das

arxiv:1705.07419 v1 · 2017-05-21 · 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{VPFQRJTAORNCCYDCLLQGGPDK3X}

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	2026-05-18T00:44:05.639268Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abcb08a660745a2160625ae0633c6addf3f8a63436427caa0cd479ae698dfc52

Aliases

arxiv: 1705.07419 · arxiv_version: 1705.07419v1 · doi: 10.48550/arxiv.1705.07419 · pith_short_12: VPFQRJTAORNC · pith_short_16: VPFQRJTAORNCCYDC · pith_short_8: VPFQRJTA

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/VPFQRJTAORNCCYDCLLQGGPDK3X \
  | 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: abcb08a660745a2160625ae0633c6addf3f8a63436427caa0cd479ae698dfc52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29f4f842b2aa02b78065df7d9ebc10e8182ea0e46577d71740fd2eb4b5a1a63e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-05-21T09:41:37Z",
    "title_canon_sha256": "c9f2e678bfed6f45a8de31512b136a7d68e7cab6874aa24f1c78ef98f3474730"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.07419",
    "kind": "arxiv",
    "version": 1
  }
}