Pith Number

pith:LSWMYKPM

pith:2014:LSWMYKPMFGVM42XMNX67YP73SF

not attested not anchored not stored refs pending

A note on surfaces with $p_g=q=2$ and an irrational fibration

Francesco Polizzi, Matteo Penegini

arxiv:1407.5477 v3 · 2014-07-21 · 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{LSWMYKPMFGVM42XMNX67YP73SF}

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	2026-05-18T00:50:30.024554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5caccc29ec29aace6aec6dfdfc3ffb91789526dc94486a2b2a27dc36653b925e

Aliases

arxiv: 1407.5477 · arxiv_version: 1407.5477v3 · doi: 10.48550/arxiv.1407.5477 · pith_short_12: LSWMYKPMFGVM · pith_short_16: LSWMYKPMFGVM42XM · pith_short_8: LSWMYKPM

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/LSWMYKPMFGVM42XMNX67YP73SF \
  | 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: 5caccc29ec29aace6aec6dfdfc3ffb91789526dc94486a2b2a27dc36653b925e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b81a6b97c9dd123eea5baf69a7f073eb5d12906fc86ec54c7fe98bb27f55d5ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-07-21T12:57:56Z",
    "title_canon_sha256": "7d6813c8d4e7a79b812c6efa00eb89f308a39755d37847a49f9c95e57ec93381"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.5477",
    "kind": "arxiv",
    "version": 3
  }
}