Pith Number

pith:PO3G5VCM

pith:2005:PO3G5VCMWJQJ5IKNECX7XRZCYU

not attested not anchored not stored refs pending

Ruled Fano fivefolds of index two

Carla Novelli, Gianluca Occhetta

arxiv:math/0511386 v1 · 2005-11-15 · 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{PO3G5VCMWJQJ5IKNECX7XRZCYU}

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	2026-05-18T00:34:05.668017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bb66ed44cb2609ea14d20affbc722c531d260c3691a7cb529fd8ba0ff64eb9f

Aliases

arxiv: math/0511386 · arxiv_version: math/0511386v1 · doi: 10.48550/arxiv.math/0511386 · pith_short_12: PO3G5VCMWJQJ · pith_short_16: PO3G5VCMWJQJ5IKN · pith_short_8: PO3G5VCM

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/PO3G5VCMWJQJ5IKNECX7XRZCYU \
  | 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: 7bb66ed44cb2609ea14d20affbc722c531d260c3691a7cb529fd8ba0ff64eb9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39bd03b89011f36c6873b1ef3962837a6a006909b1a0e6cb38f42a201f64c774",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2005-11-15T14:53:54Z",
    "title_canon_sha256": "c0449e5ec5240ac4383676b40087ee8ddf52f70730161417476c9aaa0448adae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0511386",
    "kind": "arxiv",
    "version": 1
  }
}