Pith Number

pith:FPMVHGUV

pith:2018:FPMVHGUVNU4C4XEHUS3ACLSEQC

not attested not anchored not stored refs pending

The E-normal structure of Petrov's odd unitary groups over commutative rings

Raimund Preusser

arxiv:1809.08543 v1 · 2018-09-23 · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FPMVHGUVNU4C4XEHUS3ACLSEQC}

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	2026-05-18T00:05:04.133669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bd9539a956d382e5c87a4b6012e4480a272120de8bfc913810589e77b1c3b56

Aliases

arxiv: 1809.08543 · arxiv_version: 1809.08543v1 · doi: 10.48550/arxiv.1809.08543 · pith_short_12: FPMVHGUVNU4C · pith_short_16: FPMVHGUVNU4C4XEH · pith_short_8: FPMVHGUV

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/FPMVHGUVNU4C4XEHUS3ACLSEQC \
  | 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: 2bd9539a956d382e5c87a4b6012e4480a272120de8bfc913810589e77b1c3b56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c4f222415f30b0673c83113abfd9ec4dceec27cdc8f6e1f4d887b3486aae8c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2018-09-23T06:16:24Z",
    "title_canon_sha256": "84e03e1965f4cb78a030836c9add7d66cfbf679d55a17cd29402b17a4e27b0d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08543",
    "kind": "arxiv",
    "version": 1
  }
}