Pith Number

pith:DJNZFWVU

pith:2020:DJNZFWVUUEWDV6RHSYT4JETB5X

not attested not anchored not stored refs pending

Deformations of semi-smooth varieties

Barbara Fantechi, Marco Franciosi, Rita Pardini

arxiv:2010.02296 v3 · 2020-10-05 · 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{DJNZFWVUUEWDV6RHSYT4JETB5X}

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.

Cited by

1 paper in Pith

Smoothing toroidal crossing spaces

Receipt and verification

First computed	2026-07-05T02:37:05.999257Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a5b92dab4a12c3afa279627c49261edeab86d88bcf7a213e486712630af0f54

Aliases

arxiv: 2010.02296 · arxiv_version: 2010.02296v3 · doi: 10.48550/arxiv.2010.02296 · pith_short_12: DJNZFWVUUEWD · pith_short_16: DJNZFWVUUEWDV6RH · pith_short_8: DJNZFWVU

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/DJNZFWVUUEWDV6RHSYT4JETB5X \
  | 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: 1a5b92dab4a12c3afa279627c49261edeab86d88bcf7a213e486712630af0f54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "526bd6a3085354366e9bc341e78a5139d2b61e407b19866beaab3bc837c0ffcd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2020-10-05T19:29:57Z",
    "title_canon_sha256": "0d57c1f2877b751141609464283866353d0f414f6ae07cb2370d891a05ad24af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.02296",
    "kind": "arxiv",
    "version": 3
  }
}