pith. sign in
Pith Number

pith:6ZK2PHJL

pith:2013:6ZK2PHJLXMBAIFEE76VG62IO27
not attested not anchored not stored refs pending

Determination and (re)parametrization of rational developable surfaces

Li-Yong Shen, Sonia Perez-Diaz

arxiv:1305.2463 v1 · 2013-05-11 · cs.SC · cs.CG · math.AG

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{6ZK2PHJLXMBAIFEE76VG62IO27}

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 2026-05-18T03:25:57.797956Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

f655a79d2bbb02041484ffaa6f690ed7c19e559ca39bbe36021e13f622bfc0ca

Aliases

arxiv: 1305.2463 · arxiv_version: 1305.2463v1 · doi: 10.48550/arxiv.1305.2463 · pith_short_12: 6ZK2PHJLXMBA · pith_short_16: 6ZK2PHJLXMBAIFEE · pith_short_8: 6ZK2PHJL
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/6ZK2PHJLXMBAIFEE76VG62IO27 \
  | 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: f655a79d2bbb02041484ffaa6f690ed7c19e559ca39bbe36021e13f622bfc0ca
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "f738bfc94c5da35473ac29743d910fea735e0da48ccaafe7a0d46ae1e3548105",
    "cross_cats_sorted": [
      "cs.CG",
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SC",
    "submitted_at": "2013-05-11T01:58:08Z",
    "title_canon_sha256": "767f3554d12408d351241ac0e5ecceeb26a00fa0d7015a845807ad76d02816be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.2463",
    "kind": "arxiv",
    "version": 1
  }
}