Pith Number

pith:W3VOP77M

pith:2014:W3VOP77MMHM3X7YQ3KRGPZNSEU

not attested not anchored not stored refs pending

Fano varieties in Mori fibre spaces

Andrea Fanelli, Giulio Codogni, Luca Tasin, Roberto Svaldi

arxiv:1406.7634 v2 · 2014-06-30 · 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{W3VOP77MMHM3X7YQ3KRGPZNSEU}

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	2026-05-18T01:12:43.571371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6eae7ffec61d9bbff10daa267e5b22530a513d8ce7714ba9bd804c6a8dff44c

Aliases

arxiv: 1406.7634 · arxiv_version: 1406.7634v2 · doi: 10.48550/arxiv.1406.7634 · pith_short_12: W3VOP77MMHM3 · pith_short_16: W3VOP77MMHM3X7YQ · pith_short_8: W3VOP77M

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/W3VOP77MMHM3X7YQ3KRGPZNSEU \
  | 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: b6eae7ffec61d9bbff10daa267e5b22530a513d8ce7714ba9bd804c6a8dff44c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74a97e6e9c15e6a10d010cc9ce571122c1c632212b69ccdab64d32a5d9ac82fb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-06-30T08:41:28Z",
    "title_canon_sha256": "f3c3807587fb6c6cb2a9ea7d0f92b15589b3c1bceccb8f2e4add93755ca7f218"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.7634",
    "kind": "arxiv",
    "version": 2
  }
}