Pith Number

pith:DR4I4RJ3

pith:2012:DR4I4RJ3WXUZUR36BSWVANMNFT

not attested not anchored not stored refs pending

The Modified Direct Method: an Approach for Smoothing Planar and Surface Meshes

Gang Mei, John C.Tipper, Nengxiong Xu

arxiv:1212.3133 v1 · 2012-12-13 · cs.CG · cs.NA · math.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DR4I4RJ3WXUZUR36BSWVANMNFT}

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	2026-05-18T00:54:09.227732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c788e453bb5e99a477e0cad50358d2cea5c6df877754c9435a9a01245f4c305

Aliases

arxiv: 1212.3133 · arxiv_version: 1212.3133v1 · doi: 10.48550/arxiv.1212.3133 · pith_short_12: DR4I4RJ3WXUZ · pith_short_16: DR4I4RJ3WXUZUR36 · pith_short_8: DR4I4RJ3

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/DR4I4RJ3WXUZUR36BSWVANMNFT \
  | 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: 1c788e453bb5e99a477e0cad50358d2cea5c6df877754c9435a9a01245f4c305

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2cc76ec5c35d383d60778fc08ae32833a0b0e5ae160c2a1c5f337be07e3ba813",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2012-12-13T11:36:39Z",
    "title_canon_sha256": "4a3f977430b7648a1fb8893bd277133acf1d50c2f34216498fc5c0e61ac83e5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.3133",
    "kind": "arxiv",
    "version": 1
  }
}