Pith Number

pith:OWXK4KCX

pith:2009:OWXK4KCXI4O7EQSRXN4O34W2OW

not attested not anchored not stored refs pending

Topological properties of punctual Hilbert schemes of almost-complex fourfolds (I)

Julien Grivaux

arxiv:1001.0114 v1 · 2009-12-31 · math.AG · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OWXK4KCXI4O7EQSRXN4O34W2OW}

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	2026-05-18T00:33:28.129125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75aeae2857471df24251bb78edf2da75bf1963220c0e4db2c8e8db9d7cd59bfb

Aliases

arxiv: 1001.0114 · arxiv_version: 1001.0114v1 · doi: 10.48550/arxiv.1001.0114 · pith_short_12: OWXK4KCXI4O7 · pith_short_16: OWXK4KCXI4O7EQSR · pith_short_8: OWXK4KCX

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/OWXK4KCXI4O7EQSRXN4O34W2OW \
  | 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: 75aeae2857471df24251bb78edf2da75bf1963220c0e4db2c8e8db9d7cd59bfb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9da06d638daa1168bd33e0d7ef81287853d1066861a5157fc4ce063ada0ee96",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2009-12-31T10:39:45Z",
    "title_canon_sha256": "2c76671cb337ca71b36a524425d85e0c1fa7999dcf777265ef917f519da0092d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.0114",
    "kind": "arxiv",
    "version": 1
  }
}