Pith Number

pith:NPOIYNDK

pith:2012:NPOIYNDKOIMU6H5XEBY67FBCJP

not attested not anchored not stored refs pending

Ultrafilter and Constructible topologies on spaces of valuation domains

Carmelo A. Finocchiaro, K. Alan Loper, Marco Fontana

arxiv:1202.2451 v1 · 2012-02-11 · math.AC · 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{NPOIYNDKOIMU6H5XEBY67FBCJP}

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	2026-05-18T04:02:26.493038Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bdc8c346a72194f1fb72071ef94224bf9c67e286e77adcfec341f5c082ec004

Aliases

arxiv: 1202.2451 · arxiv_version: 1202.2451v1 · doi: 10.48550/arxiv.1202.2451 · pith_short_12: NPOIYNDKOIMU · pith_short_16: NPOIYNDKOIMU6H5X · pith_short_8: NPOIYNDK

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/NPOIYNDKOIMU6H5XEBY67FBCJP \
  | 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: 6bdc8c346a72194f1fb72071ef94224bf9c67e286e77adcfec341f5c082ec004

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77cfd3936a695cdd7c60a10d067261ec3bd7e8290809e1fb7ea23262658358b9",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2012-02-11T16:54:09Z",
    "title_canon_sha256": "f4507dc324aa6f10670f02336328cffa3c05c13934c08993f85b63c5e1635a4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2451",
    "kind": "arxiv",
    "version": 1
  }
}