Pith Number

pith:JB4UEKVZ

pith:2011:JB4UEKVZ5CT5IT74BILR3BQOY2

not attested not anchored not stored refs pending

The weighted vertex PI index

Aleksandar Ili\' c, Nikola Milosavaljevi\' c

arxiv:1104.4259 v1 · 2011-04-21 · 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{JB4UEKVZ5CT5IT74BILR3BQOY2}

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	2026-05-18T02:22:01.530246Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4879422ab9e8a7d44ffc0a171d860ec68d7058e34392029c29b64a14abc062a4

Aliases

arxiv: 1104.4259 · arxiv_version: 1104.4259v1 · doi: 10.48550/arxiv.1104.4259 · pith_short_12: JB4UEKVZ5CT5 · pith_short_16: JB4UEKVZ5CT5IT74 · pith_short_8: JB4UEKVZ

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/JB4UEKVZ5CT5IT74BILR3BQOY2 \
  | 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: 4879422ab9e8a7d44ffc0a171d860ec68d7058e34392029c29b64a14abc062a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5683b1db38a6144981d003d2810e4b786ce4e56c2378f85a7a4ed0ed8c2622b0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-04-21T13:30:43Z",
    "title_canon_sha256": "d5c7cf152b6682df8dab56e7f200063dda84a53a5de7ba004aba953d1f442a21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4259",
    "kind": "arxiv",
    "version": 1
  }
}