Pith Number

pith:FGTWL2CX

pith:2017:FGTWL2CX6TLJ3VCVH2PVCTWDEK

not attested not anchored not stored refs pending

Local normal forms of singular Levi-flat hypersurfaces

Arturo Fern\'andez-P\'erez, Gustavo Marra

arxiv:1710.02893 v2 · 2017-10-08 · 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{FGTWL2CX6TLJ3VCVH2PVCTWDEK}

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	2026-05-18T00:03:24.933052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29a765e857f4d69dd4553e9f514ec322835bf087275be0bdb9662ae9983f8101

Aliases

arxiv: 1710.02893 · arxiv_version: 1710.02893v2 · doi: 10.48550/arxiv.1710.02893 · pith_short_12: FGTWL2CX6TLJ · pith_short_16: FGTWL2CX6TLJ3VCV · pith_short_8: FGTWL2CX

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/FGTWL2CX6TLJ3VCVH2PVCTWDEK \
  | 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: 29a765e857f4d69dd4553e9f514ec322835bf087275be0bdb9662ae9983f8101

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ba8a5852b3b655ffc60a821f2606a5fb48797c2e52811a28e54055eac4ebac3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2017-10-08T22:17:27Z",
    "title_canon_sha256": "7d9caf9eae42618835dd0e075565bd8f34a8b4eac02becf876f00af1c8428fee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.02893",
    "kind": "arxiv",
    "version": 2
  }
}