Pith Number

pith:MXHW4CTG

pith:2016:MXHW4CTGQKPDYBSKPSQBD4UPYY

not attested not anchored not stored refs pending

On integral points on degree four del Pezzo surfaces

Damaris Schindler, J\"org Jahnel

arxiv:1602.03118 v4 · 2016-02-09 · math.NT · 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{MXHW4CTGQKPDYBSKPSQBD4UPYY}

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	2026-05-18T00:39:23.222916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65cf6e0a66829e3c064a7ca011f28fc61f856c4968da2ad26e0f2893db8b55f5

Aliases

arxiv: 1602.03118 · arxiv_version: 1602.03118v4 · doi: 10.48550/arxiv.1602.03118 · pith_short_12: MXHW4CTGQKPD · pith_short_16: MXHW4CTGQKPDYBSK · pith_short_8: MXHW4CTG

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/MXHW4CTGQKPDYBSKPSQBD4UPYY \
  | 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: 65cf6e0a66829e3c064a7ca011f28fc61f856c4968da2ad26e0f2893db8b55f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7750639327b2d39475c57f7cf7615eecd8832c863469e75731a858889765e17b",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2016-02-09T18:56:33Z",
    "title_canon_sha256": "1204b29814f3c053cf920a92c57bb7b002418fd70fcd178e3c45561685f22569"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.03118",
    "kind": "arxiv",
    "version": 4
  }
}