Pith Number

pith:YUWDD5FI

pith:2013:YUWDD5FIUKY4CUDKI6UMEZJHXH

not attested not anchored not stored refs pending

Biharmonic surfaces with parallel mean curvature in complex space forms

Ana Lucia Pinheiro, Dorel Fetcu

arxiv:1303.4279 v1 · 2013-03-18 · 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{YUWDD5FIUKY4CUDKI6UMEZJHXH}

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	2026-05-18T01:21:05.631287Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c52c31f4a8a2b1c1506a47a8c26527b9d1b7b8ef8d83fdd5ae0de5173d029c9f

Aliases

arxiv: 1303.4279 · arxiv_version: 1303.4279v1 · doi: 10.48550/arxiv.1303.4279 · pith_short_12: YUWDD5FIUKY4 · pith_short_16: YUWDD5FIUKY4CUDK · pith_short_8: YUWDD5FI

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/YUWDD5FIUKY4CUDKI6UMEZJHXH \
  | 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: c52c31f4a8a2b1c1506a47a8c26527b9d1b7b8ef8d83fdd5ae0de5173d029c9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7945673710f57f3d1e275a2cb2fc3d49a217196614d0b50482726dcf75e79b76",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-03-18T15:09:18Z",
    "title_canon_sha256": "60c24bba7f7c1572a903dc665e0a50ff07535ccde13859ec62930bfcaa7411ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.4279",
    "kind": "arxiv",
    "version": 1
  }
}