Pith Number

pith:JHPDHKXD

pith:2009:JHPDHKXDJTXRNSTEQLWEUVYKBL

not attested not anchored not stored refs pending

On the Developable Mannheim Offsets of Spacelike Ruled Surfaces

H. Huseyin U\u{g}urlu, Mehmet \"Onder

arxiv:0906.4660 v5 · 2009-06-25 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JHPDHKXDJTXRNSTEQLWEUVYKBL}

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	2026-05-18T03:24:52.839712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49de33aae34cef16ca6482ec4a570a0af9d6c1bf7442eeb5d007eb61f5eb4f74

Aliases

arxiv: 0906.4660 · arxiv_version: 0906.4660v5 · doi: 10.48550/arxiv.0906.4660 · pith_short_12: JHPDHKXDJTXR · pith_short_16: JHPDHKXDJTXRNSTE · pith_short_8: JHPDHKXD

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/JHPDHKXDJTXRNSTEQLWEUVYKBL \
  | 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: 49de33aae34cef16ca6482ec4a570a0af9d6c1bf7442eeb5d007eb61f5eb4f74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29a46cf95daf56be65bb0cc9f949733fad9dbbec422d956c01d39054d710ff4a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-06-25T10:35:03Z",
    "title_canon_sha256": "3326af600f30460675e150adf036417330490d94eadb3a73cc0f8d904b72352c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.4660",
    "kind": "arxiv",
    "version": 5
  }
}