Pith Number

pith:PTOVSQUM

pith:2019:PTOVSQUMQJD7VADRCTH6WRXW3D

not attested not anchored not stored refs pending

Real hypersurfaces in the complex quadric with Reeb parallel structure Jacobi operator

Hyunjin Lee, Young Jin Suh

arxiv:1907.04661 v1 · 2019-07-09 · 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{PTOVSQUMQJD7VADRCTH6WRXW3D}

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	2026-05-17T23:40:57.183969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cdd59428c8247fa807114cfeb46f6d8d0fc20cd62c89abb3285753a7c34ea01

Aliases

arxiv: 1907.04661 · arxiv_version: 1907.04661v1 · doi: 10.48550/arxiv.1907.04661 · pith_short_12: PTOVSQUMQJD7 · pith_short_16: PTOVSQUMQJD7VADR · pith_short_8: PTOVSQUM

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/PTOVSQUMQJD7VADRCTH6WRXW3D \
  | 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: 7cdd59428c8247fa807114cfeb46f6d8d0fc20cd62c89abb3285753a7c34ea01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fcb9f3e81128ad5212abefd8cac24580ab66f05ff9e013f8445098931b7333d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-07-09T00:46:28Z",
    "title_canon_sha256": "b3fb185495e3076d5ab9470240f10664b3e66fbc62072ba8df084de2e08f4760"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04661",
    "kind": "arxiv",
    "version": 1
  }
}