Pith Number

pith:DBZY53GL

pith:2014:DBZY53GLDKZDXL7EUGXATME2TK

not attested not anchored not stored refs pending

Convergent normal form for real hypersurfaces at generic Levi degeneracy

Dmitri Zaitsev, Ilya Kossovskiy

arxiv:1405.1743 v1 · 2014-05-07 · math.CV · 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{DBZY53GLDKZDXL7EUGXATME2TK}

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	2026-05-18T02:52:22.733433Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18738eeccb1ab23bafe4a1ae09b09a9a9e97b37770afcc37995049b80c094995

Aliases

arxiv: 1405.1743 · arxiv_version: 1405.1743v1 · doi: 10.48550/arxiv.1405.1743 · pith_short_12: DBZY53GLDKZD · pith_short_16: DBZY53GLDKZDXL7E · pith_short_8: DBZY53GL

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/DBZY53GLDKZDXL7EUGXATME2TK \
  | 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: 18738eeccb1ab23bafe4a1ae09b09a9a9e97b37770afcc37995049b80c094995

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39e6e825bf28d52888ec756713ba6f09edd3104e0a38ad3483f1559a5e8556e2",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2014-05-07T20:23:37Z",
    "title_canon_sha256": "30b158423770084670e757a70637a97c6b21709e319955dabe1196b0ae620400"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.1743",
    "kind": "arxiv",
    "version": 1
  }
}