Pith Number

pith:52ITQ73O

pith:2011:52ITQ73ORUVP5N53LPIEC32QKN

not attested not anchored not stored refs pending

A Simons type formula for surfaces with parallel mean curvature

Dorel Fetcu, Harold Rosenberg

arxiv:1102.0219 v2 · 2011-02-01 · 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{52ITQ73ORUVP5N53LPIEC32QKN}

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	2026-05-18T04:30:05.083748Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee91387f6e8d2afeb7bb5bd0416f50536dfe43f78dc18615a83af1a7daabfb97

Aliases

arxiv: 1102.0219 · arxiv_version: 1102.0219v2 · doi: 10.48550/arxiv.1102.0219 · pith_short_12: 52ITQ73ORUVP · pith_short_16: 52ITQ73ORUVP5N53 · pith_short_8: 52ITQ73O

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/52ITQ73ORUVP5N53LPIEC32QKN \
  | 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: ee91387f6e8d2afeb7bb5bd0416f50536dfe43f78dc18615a83af1a7daabfb97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1110b8d0c743055f6c4756b018703f828fdf2efee49b27ff00782a18b96020eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-02-01T17:16:35Z",
    "title_canon_sha256": "8fea7da255c6ad3d6e8b37c8ad974ec55fe522d8d7634737a6ed5fcc22a71fe0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.0219",
    "kind": "arxiv",
    "version": 2
  }
}