Pith Number

pith:YYWCQFSO

pith:2011:YYWCQFSOGFFFIMK7IRRJYDN3ZQ

not attested not anchored not stored refs pending

The locus of points of the Hilbert scheme with bounded regularity

Cristina Bertone, Edoardo Ballico, Margherita Roggero

arxiv:1111.2007 v3 · 2011-11-08 · 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{YYWCQFSOGFFFIMK7IRRJYDN3ZQ}

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	2026-05-18T02:17:34.126898Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c62c28164e314a54315f44629c0dbbcc3b3b15b70692fd181e74f2f96df9760d

Aliases

arxiv: 1111.2007 · arxiv_version: 1111.2007v3 · doi: 10.48550/arxiv.1111.2007 · pith_short_12: YYWCQFSOGFFF · pith_short_16: YYWCQFSOGFFFIMK7 · pith_short_8: YYWCQFSO

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/YYWCQFSOGFFFIMK7IRRJYDN3ZQ \
  | 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: c62c28164e314a54315f44629c0dbbcc3b3b15b70692fd181e74f2f96df9760d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7487b00c5a4cec1013f3c48d55e4cfbb8d6d0e28feeabb85f44b8436bfe05fd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-11-08T18:40:34Z",
    "title_canon_sha256": "cb7266dac02732e604f7e1cac7c46db00a084e66d1e5ad60d4f9a402cde89e56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.2007",
    "kind": "arxiv",
    "version": 3
  }
}