Pith Number

pith:J3WKK2GT

pith:2013:J3WKK2GTV343APIX4MRPURFEHP

not attested not anchored not stored refs pending

Rational curves, Dynkin diagrams and Fano manifolds with nef tangent bundle

Gianluca Occhetta, Kiwamu Watanabe, Luis Eduardo Sol\'a Conde, Roberto Mu\~noz

arxiv:1304.3928 v3 · 2013-04-14 · 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{J3WKK2GTV343APIX4MRPURFEHP}

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	2026-05-18T02:22:30.208518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4eeca568d3aef9b03d17e322fa44a43bdfcaf8825fd0d1994737c5425efd2c4e

Aliases

arxiv: 1304.3928 · arxiv_version: 1304.3928v3 · doi: 10.48550/arxiv.1304.3928 · pith_short_12: J3WKK2GTV343 · pith_short_16: J3WKK2GTV343APIX · pith_short_8: J3WKK2GT

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/J3WKK2GTV343APIX4MRPURFEHP \
  | 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: 4eeca568d3aef9b03d17e322fa44a43bdfcaf8825fd0d1994737c5425efd2c4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e95aa4379fec86e306702a97483c0730ca1ec133fb8cfc61b96d4825e8472633",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-04-14T17:28:39Z",
    "title_canon_sha256": "15b0ee160dff541fcfac2ed376e181e16d9f093df96b104bc06bf3b39797f71e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3928",
    "kind": "arxiv",
    "version": 3
  }
}