Pith Number

pith:YVQHM3J3

pith:2012:YVQHM3J3WMBKK3MGMZV5V3HYAH

not attested not anchored not stored refs pending

An efficient implementation of the algorithm computing the Borel-fixed points of a Hilbert scheme

Paolo Lella

arxiv:1205.0456 v1 · 2012-05-02 · cs.SC · math.AC · math.AG · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YVQHM3J3WMBKK3MGMZV5V3HYAH}

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	2026-05-18T03:56:34.491329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c560766d3bb302a56d86666bdaecf801efd1647836080ac586e6748346df1f7e

Aliases

arxiv: 1205.0456 · arxiv_version: 1205.0456v1 · doi: 10.48550/arxiv.1205.0456 · pith_short_12: YVQHM3J3WMBK · pith_short_16: YVQHM3J3WMBKK3MG · pith_short_8: YVQHM3J3

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/YVQHM3J3WMBKK3MGMZV5V3HYAH \
  | 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: c560766d3bb302a56d86666bdaecf801efd1647836080ac586e6748346df1f7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54f11e3cf9e6514e8050013ee58e3d0aab9e026b0eaae13c86594093511619f2",
    "cross_cats_sorted": [
      "math.AC",
      "math.AG",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SC",
    "submitted_at": "2012-05-02T15:11:48Z",
    "title_canon_sha256": "abffc23f69d24eb2762a162c0abe312aefe3d6cfedef6a3515f4acd691a24b5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0456",
    "kind": "arxiv",
    "version": 1
  }
}