Pith Number

pith:H46NCMYH

pith:2002:H46NCMYHH7UYPF6D474IRI3JJJ

not attested not anchored not stored refs pending

Lagrangian surfaces with circullar ellipse of curvature in complex space forms

Ildefonso Castro

arxiv:math/0210134 v1 · 2002-10-09 · 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{H46NCMYHH7UYPF6D474IRI3JJJ}

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	2026-05-18T01:38:29.406060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f3cd133073fe98797c3e7f888a3694a5e0e2044a669fc59171b4046e351b7ba

Aliases

arxiv: math/0210134 · arxiv_version: math/0210134v1 · doi: 10.48550/arxiv.math/0210134 · pith_short_12: H46NCMYHH7UY · pith_short_16: H46NCMYHH7UYPF6D · pith_short_8: H46NCMYH

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/H46NCMYHH7UYPF6D474IRI3JJJ \
  | 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: 3f3cd133073fe98797c3e7f888a3694a5e0e2044a669fc59171b4046e351b7ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a379b93f95772ec463becf8d3092d7ed2c1c3c7034c900ec1115e829ce040adb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2002-10-09T11:18:04Z",
    "title_canon_sha256": "e786555e5b468bedef0bcf5c5694730fc0b9da2dff0fab4186780d653f6a3cf7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0210134",
    "kind": "arxiv",
    "version": 1
  }
}