Pith Number

pith:F36A7C7N

pith:2019:F36A7C7NXNN4OBKWREDSSOTHFF

not attested not anchored not stored refs pending

Topologically robust CAD model generation for structural optimisation

Fehmi Cirak, Ge Yin, Xiao Xiao

arxiv:1906.07631 v2 · 2019-06-17 · cs.GR · cs.CE · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F36A7C7NXNN4OBKWREDSSOTHFF}

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	2026-07-05T01:18:36.286839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2efc0f8bedbb5bc705568907293a67297ec81d1a09163b53e69034109d11442f

Aliases

arxiv: 1906.07631 · arxiv_version: 1906.07631v2 · doi: 10.48550/arxiv.1906.07631 · pith_short_12: F36A7C7NXNN4 · pith_short_16: F36A7C7NXNN4OBKW · pith_short_8: F36A7C7N

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/F36A7C7NXNN4OBKWREDSSOTHFF \
  | 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: 2efc0f8bedbb5bc705568907293a67297ec81d1a09163b53e69034109d11442f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "589acccea02dfb605ea552d79c18b515c963bf7325cb466a59456b4454bcbaf2",
    "cross_cats_sorted": [
      "cs.CE",
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2019-06-17T15:09:02Z",
    "title_canon_sha256": "a302b6df5459fa772ef173b4dc84152e7f6977260d6415353d925f20c6e516bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.07631",
    "kind": "arxiv",
    "version": 2
  }
}