Pith Number

pith:D3LD5RPY

pith:2014:D3LD5RPYMSI4JWVGMSDQBLCIKQ

not attested not anchored not stored refs pending

A level set based method for fixing overhangs in 3D printing

Emiliano Cristiani, Leonardo Rocchi, Simone Cacace

arxiv:1409.1714 v5 · 2014-09-05 · math.NA · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D3LD5RPYMSI4JWVGMSDQBLCIKQ}

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	2026-05-18T00:18:41.906998Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ed63ec5f86491c4daa6648700ac485439da5ac8a1854c04105d76e1202fe1b0

Aliases

arxiv: 1409.1714 · arxiv_version: 1409.1714v5 · doi: 10.48550/arxiv.1409.1714 · pith_short_12: D3LD5RPYMSI4 · pith_short_16: D3LD5RPYMSI4JWVG · pith_short_8: D3LD5RPY

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/D3LD5RPYMSI4JWVGMSDQBLCIKQ \
  | 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: 1ed63ec5f86491c4daa6648700ac485439da5ac8a1854c04105d76e1202fe1b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6f5da7dc4c9bb0794d8d8c86e2e18699abb97d27da1f792c014fba7d6a25294",
    "cross_cats_sorted": [
      "cs.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-09-05T10:00:35Z",
    "title_canon_sha256": "4323f5256f8e51bb3d9a3c852fd52ef2a985051e7f1f3fafe3d58551579974f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.1714",
    "kind": "arxiv",
    "version": 5
  }
}