Pith Number

pith:6EUQNFHW

pith:2011:6EUQNFHWHC7V6CK7AXWLRNVJXI

not attested not anchored not stored refs pending

Cayley forms and self dual varieties

Fabrizio Catanese (Universitaet Bayreuth)

arxiv:1112.6168 v2 · 2011-12-28 · math.AG · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6EUQNFHWHC7V6CK7AXWLRNVJXI}

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	2026-05-18T04:05:04.982062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1290694f638bf5f095f05ecb8b6a9ba2123f51ee6d1c1b470b342ceaa81fb3a

Aliases

arxiv: 1112.6168 · arxiv_version: 1112.6168v2 · doi: 10.48550/arxiv.1112.6168 · pith_short_12: 6EUQNFHWHC7V · pith_short_16: 6EUQNFHWHC7V6CK7 · pith_short_8: 6EUQNFHW

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/6EUQNFHWHC7V6CK7AXWLRNVJXI \
  | 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: f1290694f638bf5f095f05ecb8b6a9ba2123f51ee6d1c1b470b342ceaa81fb3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af7b02430dcd6c9641deb425d6242b7ccf2fcc7620a3b4eb0537b640cf92e8c4",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-12-28T19:05:47Z",
    "title_canon_sha256": "4a3da82533f12af845707ce757c04db7aa3bc6409f6b4a1e6a7d19eca9afaa15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.6168",
    "kind": "arxiv",
    "version": 2
  }
}