Pith Number

pith:ZYIWNN7D

pith:2010:ZYIWNN7DYEL5GYHKDXLUL5S2PU

not attested not anchored not stored refs pending

On certain surfaces in the Euclidean space ${\mathbb{E}}^3$

Ana Irina Nistor, Marian Ioan Munteanu

arxiv:1004.4255 v1 · 2010-04-24 · 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{ZYIWNN7DYEL5GYHKDXLUL5S2PU}

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	2026-05-18T04:19:41.258232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce1166b7e3c117d360ea1dd745f65a7d3cbf36b7103985df8fa71e9b83df480e

Aliases

arxiv: 1004.4255 · arxiv_version: 1004.4255v1 · doi: 10.48550/arxiv.1004.4255 · pith_short_12: ZYIWNN7DYEL5 · pith_short_16: ZYIWNN7DYEL5GYHK · pith_short_8: ZYIWNN7D

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/ZYIWNN7DYEL5GYHKDXLUL5S2PU \
  | 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: ce1166b7e3c117d360ea1dd745f65a7d3cbf36b7103985df8fa71e9b83df480e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c66ddab84315b1daf9161b6e061fe14fb0ebbfbc4e93bf3afe5498af61532c7d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2010-04-24T05:41:54Z",
    "title_canon_sha256": "3b8d014f41b3c5613f13378113a20d6f047347717f4dca8279295c8454deff9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.4255",
    "kind": "arxiv",
    "version": 1
  }
}