Pith Number

pith:Y27ZJJ7F

pith:2019:Y27ZJJ7FM5EW6LLNGZRKYK2ZIB

not attested not anchored not stored refs pending

Connected Components in the Hilbert Scheme of hypersurfaces in Grassmannians

See-Hak Seong

arxiv:1907.06569 v2 · 2019-07-15 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y27ZJJ7FM5EW6LLNGZRKYK2ZIB}

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	2026-05-17T23:40:29.519854Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6bf94a7e567496f2d6d3662ac2b5940448e1a13e90e9717161fa9dc6cc06a16

Aliases

arxiv: 1907.06569 · arxiv_version: 1907.06569v2 · doi: 10.48550/arxiv.1907.06569 · pith_short_12: Y27ZJJ7FM5EW · pith_short_16: Y27ZJJ7FM5EW6LLN · pith_short_8: Y27ZJJ7F

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/Y27ZJJ7FM5EW6LLNGZRKYK2ZIB \
  | 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: c6bf94a7e567496f2d6d3662ac2b5940448e1a13e90e9717161fa9dc6cc06a16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d97ede382937a053d4364fb81296d6110f448e80500f1401c1439bf63d047cc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-07-15T16:21:26Z",
    "title_canon_sha256": "f3d1b3f9eb1cee5cb2485c60a755c757d47dd2c4193f3dca04f3d7530d384f2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.06569",
    "kind": "arxiv",
    "version": 2
  }
}