Pith Number

pith:HSWARBFB

pith:2009:HSWARBFB3Y2SAD3XQQRJ5IK7BN

not attested not anchored not stored refs pending

Generalised Hasse-Schmidt varieties and their jet spaces

Rahim Moosa, Thomas Scanlon

arxiv:0908.4230 v2 · 2009-08-28 · math.AG · math.AC · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HSWARBFB3Y2SAD3XQQRJ5IK7BN}

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	2026-05-18T02:58:02.843916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cac0884a1de35200f7784229ea15f0b60257f09015962d3e728e372bb65e46e

Aliases

arxiv: 0908.4230 · arxiv_version: 0908.4230v2 · doi: 10.48550/arxiv.0908.4230 · pith_short_12: HSWARBFB3Y2S · pith_short_16: HSWARBFB3Y2SAD3X · pith_short_8: HSWARBFB

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/HSWARBFB3Y2SAD3XQQRJ5IK7BN \
  | 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: 3cac0884a1de35200f7784229ea15f0b60257f09015962d3e728e372bb65e46e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1286d7ac19adabfe1642035f5a7332cf35ccb03ae7f2b3630970345ae247503e",
    "cross_cats_sorted": [
      "math.AC",
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2009-08-28T19:05:03Z",
    "title_canon_sha256": "42e41f959ee6ec853980ceb6a399ec0897d796c8cc4f1aca5e8db76b8647fa21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.4230",
    "kind": "arxiv",
    "version": 2
  }
}