Pith Number

pith:7CNUVGCG

pith:2016:7CNUVGCG7QPMR7IFEGW2SLRSKY

not attested not anchored not stored refs pending

Meridian Surfaces with Constant Mean Curvature in Pseudo-Euclidean 4-space with Neutral Metric

Betul Bulca, Velichka Milousheva

arxiv:1606.00044 v1 · 2016-05-31 · 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{7CNUVGCG7QPMR7IFEGW2SLRSKY}

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	2026-05-18T00:45:34.854429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f89b4a9846fc1ec8fd0521ada92e32560b0c6f5ce9ce73a17d266b88cfde0d72

Aliases

arxiv: 1606.00044 · arxiv_version: 1606.00044v1 · doi: 10.48550/arxiv.1606.00044 · pith_short_12: 7CNUVGCG7QPM · pith_short_16: 7CNUVGCG7QPMR7IF · pith_short_8: 7CNUVGCG

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/7CNUVGCG7QPMR7IFEGW2SLRSKY \
  | 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: f89b4a9846fc1ec8fd0521ada92e32560b0c6f5ce9ce73a17d266b88cfde0d72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4bd903b71f2492e7ff8db60fea058372ae520e05bf9cc367b2fb3fc8d9d597d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-05-31T21:01:22Z",
    "title_canon_sha256": "d8b497ed6c759ed848cf38235b128e131766a6a1898528863a16018098296566"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.00044",
    "kind": "arxiv",
    "version": 1
  }
}