Pith Number

pith:IJRYF2W7

pith:2023:IJRYF2W7ZUBZMWPLDOQ2T6JQ2B

not attested not anchored not stored refs pending

K-stable Fano threefolds of rank 2 and degree 28

Joseph Malbon

arxiv:2304.12295 v2 · 2023-04-24 · 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{IJRYF2W7ZUBZMWPLDOQ2T6JQ2B}

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.

Cited by

1 paper in Pith

$\delta$-invariants of log Fano planes

Receipt and verification

First computed	2026-07-05T11:37:41.165337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

426382eadfcd039659eb1ba1a9f930d072a4c2c5d6d1d01171dfbb603ca98837

Aliases

arxiv: 2304.12295 · arxiv_version: 2304.12295v2 · doi: 10.48550/arxiv.2304.12295 · pith_short_12: IJRYF2W7ZUBZ · pith_short_16: IJRYF2W7ZUBZMWPL · pith_short_8: IJRYF2W7

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/IJRYF2W7ZUBZMWPLDOQ2T6JQ2B \
  | 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: 426382eadfcd039659eb1ba1a9f930d072a4c2c5d6d1d01171dfbb603ca98837

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25b770523745b8c62476d61bc82f5670846e717d586994ffbb700cdb7e8e1885",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2023-04-24T17:46:10Z",
    "title_canon_sha256": "5006163febb1f9320696b5df5d816e32bb751f20778210df6399f41e6681744d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.12295",
    "kind": "arxiv",
    "version": 2
  }
}