Pith Number

pith:SOB47EJB

pith:2014:SOB47EJBJWBLORIFWMFFRQQWRV

not attested not anchored not stored refs pending

Randi\'c energy and Randi\'c eigenvalues

Jianfeng Wang, Xueliang Li

arxiv:1404.5383 v2 · 2014-04-22 · 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{SOB47EJBJWBLORIFWMFFRQQWRV}

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	2026-05-18T02:53:28.377873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9383cf91214d82b74505b30a58c2168d5dc3408e662d12a9add4aa00db777699

Aliases

arxiv: 1404.5383 · arxiv_version: 1404.5383v2 · doi: 10.48550/arxiv.1404.5383 · pith_short_12: SOB47EJBJWBL · pith_short_16: SOB47EJBJWBLORIF · pith_short_8: SOB47EJB

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/SOB47EJBJWBLORIFWMFFRQQWRV \
  | 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: 9383cf91214d82b74505b30a58c2168d5dc3408e662d12a9add4aa00db777699

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00e3a4ee62cc38ad1be18efa48424774bc35b5900d1eebae057739767d703a25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-04-22T06:02:07Z",
    "title_canon_sha256": "86350b4cc65e0571ffa0dc88c83c6ab97b66bb1433964cab3d6aaed4abaa6448"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.5383",
    "kind": "arxiv",
    "version": 2
  }
}