Pith Number

pith:FNZTVQV5

pith:2019:FNZTVQV5NEIAJCTCLARWJNG7PZ

not attested not anchored not stored refs pending

Characterizing symplectic Grassmannians by varieties of minimal rational tangents

Jun-Muk Hwang, Qifeng Li

arxiv:1901.00357 v1 · 2019-01-02 · math.AG · 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{FNZTVQV5NEIAJCTCLARWJNG7PZ}

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	2026-05-17T23:57:04.094219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b733ac2bd6910048a62582364b4df7e4a3c68349581d7579a3184c3deec4e13

Aliases

arxiv: 1901.00357 · arxiv_version: 1901.00357v1 · doi: 10.48550/arxiv.1901.00357 · pith_short_12: FNZTVQV5NEIA · pith_short_16: FNZTVQV5NEIAJCTC · pith_short_8: FNZTVQV5

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/FNZTVQV5NEIAJCTCLARWJNG7PZ \
  | 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: 2b733ac2bd6910048a62582364b4df7e4a3c68349581d7579a3184c3deec4e13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "487b27a0b15ab4bddeaaf069be3c220e2b5b75a081af01162b078846fa940199",
    "cross_cats_sorted": [
      "math.CV",
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-01-02T13:44:06Z",
    "title_canon_sha256": "357da0834aedc9d8c6f51612889fa61f4566c394b9af4eb615d9e1e03d06a4ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.00357",
    "kind": "arxiv",
    "version": 1
  }
}