Pith Number

pith:EHU7IYLF

pith:2009:EHU7IYLF5DGRXREOQX2IPXDOSW

not attested not anchored not stored refs pending

Weak Landau-Ginzburg models for smooth Fano threefolds

Victor Przyjalkowski

arxiv:0902.4668 v3 · 2009-02-26 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EHU7IYLF5DGRXREOQX2IPXDOSW}

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	2026-05-18T00:08:58.366081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21e9f46165e8cd1bc48e85f487dc6e958b43ae94bbf6f22423e7c6ae20a4694a

Aliases

arxiv: 0902.4668 · arxiv_version: 0902.4668v3 · doi: 10.48550/arxiv.0902.4668 · pith_short_12: EHU7IYLF5DGR · pith_short_16: EHU7IYLF5DGRXREO · pith_short_8: EHU7IYLF

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/EHU7IYLF5DGRXREOQX2IPXDOSW \
  | 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: 21e9f46165e8cd1bc48e85f487dc6e958b43ae94bbf6f22423e7c6ae20a4694a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "355b164af9333bc4b36123e7d7cb7c0659f2b58ec95e5e5247ec412437f78e37",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2009-02-26T19:05:24Z",
    "title_canon_sha256": "b029ab514e6d632f9c389db38e2dc40fb2a914e5a81bb7c5249ae3f724156edc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.4668",
    "kind": "arxiv",
    "version": 3
  }
}