Pith Number

pith:4E5VSHJJ

pith:2018:4E5VSHJJ5OFL2MWKXI5KLEY6IZ

not attested not anchored not stored refs pending

Non-uniformly flat affine algebraic hypersurfaces

Dror Varolin, Vamsi Pingali

arxiv:1810.00895 v1 · 2018-10-01 · math.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4E5VSHJJ5OFL2MWKXI5KLEY6IZ}

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	2026-05-18T00:04:19.705391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e13b591d29eb8abd32caba3aa5931e46578130018e5b2b8ac382fd34321ee427

Aliases

arxiv: 1810.00895 · arxiv_version: 1810.00895v1 · doi: 10.48550/arxiv.1810.00895 · pith_short_12: 4E5VSHJJ5OFL · pith_short_16: 4E5VSHJJ5OFL2MWK · pith_short_8: 4E5VSHJJ

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/4E5VSHJJ5OFL2MWKXI5KLEY6IZ \
  | 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: e13b591d29eb8abd32caba3aa5931e46578130018e5b2b8ac382fd34321ee427

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88a4ff340c637cc88ff8695310d6d7814a5da17fb1b1d1713f9a08dc1952112e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2018-10-01T18:00:19Z",
    "title_canon_sha256": "ec4a17cb442d59aef74e558ef61b306c80e3cc0bf51ff4540f57f960d13a0a0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.00895",
    "kind": "arxiv",
    "version": 1
  }
}