Pith Number

pith:WE3DSSMA

pith:2008:WE3DSSMAWNSHLXHJI2L4DW6NAT

not attested not anchored not stored refs pending

Simple finite group schemes and their infinitesimal deformations

Filippo Viviani

arxiv:0811.2668 v2 · 2008-11-17 · math.AG · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WE3DSSMAWNSHLXHJI2L4DW6NAT}

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	2026-05-18T02:24:56.800606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b136394980b36475dce94697c1dbcd04fbd09109e0347981100bed681c2c5341

Aliases

arxiv: 0811.2668 · arxiv_version: 0811.2668v2 · doi: 10.48550/arxiv.0811.2668 · pith_short_12: WE3DSSMAWNSH · pith_short_16: WE3DSSMAWNSHLXHJ · pith_short_8: WE3DSSMA

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/WE3DSSMAWNSHLXHJI2L4DW6NAT \
  | 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: b136394980b36475dce94697c1dbcd04fbd09109e0347981100bed681c2c5341

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "652b17afce6cc5a113c2d9f8be325b743323c37fe60c6d6293d8075fae027e01",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2008-11-17T10:56:41Z",
    "title_canon_sha256": "70518f2bdfb4a041e5a6b8838a09834042102af835a13885c518b35aba5a1049"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.2668",
    "kind": "arxiv",
    "version": 2
  }
}