Pith Number

pith:DDPJUNZY

pith:2005:DDPJUNZYPY7DGLHA743VJIHYT6

not attested not anchored not stored refs pending

A discrete Laplace-Beltrami operator for simplicial surfaces

Alexander I. Bobenko, Boris A. Springborn

arxiv:math/0503219 v3 · 2005-03-11 · math.DG · 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{DDPJUNZYPY7DGLHA743VJIHYT6}

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	2026-05-18T03:13:20.410921Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18de9a37387e3e332ce0ff3754a0f89f903f6d5e7c97bdbbe996edf6153549cf

Aliases

arxiv: math/0503219 · arxiv_version: math/0503219v3 · doi: 10.48550/arxiv.math/0503219 · pith_short_12: DDPJUNZYPY7D · pith_short_16: DDPJUNZYPY7DGLHA · pith_short_8: DDPJUNZY

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/DDPJUNZYPY7DGLHA743VJIHYT6 \
  | 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: 18de9a37387e3e332ce0ff3754a0f89f903f6d5e7c97bdbbe996edf6153549cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2568275a1c0b54035eddcad5df856d4e027bfe9014bcd1c79ad50720183de009",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2005-03-11T15:49:45Z",
    "title_canon_sha256": "1938c2d97d11918a43e22174ad679a06fee7678f4ae4c383022389c539eea29f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0503219",
    "kind": "arxiv",
    "version": 3
  }
}