Pith Number

pith:DEZKG3UG

pith:2012:DEZKG3UGXDINB3X5DKE27UDDRN

not attested not anchored not stored refs pending

On the slope of fourgonal semistable fibrations

Francesco Zucconi, Valentina Beorchia

arxiv:1209.3571 v4 · 2012-09-17 · 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{DEZKG3UGXDINB3X5DKE27UDDRN}

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	2026-05-18T00:43:10.001254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1932a36e86b8d0d0eefd1a89afd0638b4a118bf52ee7be16e99643a18f326319

Aliases

arxiv: 1209.3571 · arxiv_version: 1209.3571v4 · doi: 10.48550/arxiv.1209.3571 · pith_short_12: DEZKG3UGXDIN · pith_short_16: DEZKG3UGXDINB3X5 · pith_short_8: DEZKG3UG

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/DEZKG3UGXDINB3X5DKE27UDDRN \
  | 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: 1932a36e86b8d0d0eefd1a89afd0638b4a118bf52ee7be16e99643a18f326319

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6354085b803e358a74d12f3e22982794dd78657c08bbe9076079f9255f0856e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-09-17T08:04:31Z",
    "title_canon_sha256": "baba27fd4e2965cee4de9291e87399a0faca1592dbcdfc83d7e31121453cc95b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3571",
    "kind": "arxiv",
    "version": 4
  }
}