Pith Number

pith:5WQYKKOT

pith:2014:5WQYKKOTEFYQXBWBJBVSSEIZIC

not attested not anchored not stored refs pending

Hopf Hypersurfaces in pseudo-Riemannian complex and para-complex space forms

Henri Anciaux, Konstantina Panagiotidou

arxiv:1407.1283 v1 · 2014-07-04 · 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{5WQYKKOTEFYQXBWBJBVSSEIZIC}

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	2026-05-18T02:48:18.205685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eda18529d321710b86c1486b29111940921a5cacb000d5764dc4bf5b8576911b

Aliases

arxiv: 1407.1283 · arxiv_version: 1407.1283v1 · doi: 10.48550/arxiv.1407.1283 · pith_short_12: 5WQYKKOTEFYQ · pith_short_16: 5WQYKKOTEFYQXBWB · pith_short_8: 5WQYKKOT

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/5WQYKKOTEFYQXBWBJBVSSEIZIC \
  | 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: eda18529d321710b86c1486b29111940921a5cacb000d5764dc4bf5b8576911b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1883ae002c7ef00f4217285cf42f9f3273010700a1995971487bbf3f2bd303b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-07-04T17:27:24Z",
    "title_canon_sha256": "ffeceb9b0bd55c1f6d3591f437de9c615f07fe265cd928a5b4c67f45c4e9b7e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.1283",
    "kind": "arxiv",
    "version": 1
  }
}