Pith Number

pith:ZLK2AWN5

pith:2015:ZLK2AWN5PT6GP5UJVZZMQH24M3

not attested not anchored not stored refs pending

Characterizations of special skew ruled surfaces by the normal curvature of some distinguished families of curves

Stylianos Stamatakis

arxiv:1512.00393 v1 · 2015-11-28 · math.GM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZLK2AWN5PT6GP5UJVZZMQH24M3}

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	2026-05-18T01:25:32.052129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cad5a059bd7cfc67f689ae72c81f5c66c578d3775b40a5a2b046c19750048765

Aliases

arxiv: 1512.00393 · arxiv_version: 1512.00393v1 · doi: 10.48550/arxiv.1512.00393 · pith_short_12: ZLK2AWN5PT6G · pith_short_16: ZLK2AWN5PT6GP5UJ · pith_short_8: ZLK2AWN5

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/ZLK2AWN5PT6GP5UJVZZMQH24M3 \
  | 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: cad5a059bd7cfc67f689ae72c81f5c66c578d3775b40a5a2b046c19750048765

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0322ccfb5fe70668d6b30a722772eece1318485529ddd576914db192482481c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2015-11-28T09:00:48Z",
    "title_canon_sha256": "ef4b4d894d4cd15ff40d85884b30a7f88eb1c81f38d8c1c5316a717a9c70b4f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.00393",
    "kind": "arxiv",
    "version": 1
  }
}