Pith Number

pith:OAQN2D72

pith:2014:OAQN2D72L4N3HUHZWFTVJPDUSO

not attested not anchored not stored refs pending

N\'eron-Severi groups of product abelian surfaces

Ariel Shnidman, Julian Rosen

arxiv:1402.2233 v2 · 2014-02-10 · math.AG · math.NT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OAQN2D72L4N3HUHZWFTVJPDUSO}

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	2026-05-18T02:40:18.471122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7020dd0ffa5f1bb3d0f9b16754bc7493a6db93d4e3ab6746d557bf02f8439205

Aliases

arxiv: 1402.2233 · arxiv_version: 1402.2233v2 · doi: 10.48550/arxiv.1402.2233 · pith_short_12: OAQN2D72L4N3 · pith_short_16: OAQN2D72L4N3HUHZ · pith_short_8: OAQN2D72

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/OAQN2D72L4N3HUHZWFTVJPDUSO \
  | 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: 7020dd0ffa5f1bb3d0f9b16754bc7493a6db93d4e3ab6746d557bf02f8439205

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fec165ac198eecf1623b36e191a6c5654568d53e1613b21367e992f161c37f4",
    "cross_cats_sorted": [
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-02-10T18:41:51Z",
    "title_canon_sha256": "d72dec10ccd0691a71b0f386c8bd6983a861622ca275e87b3619d2a643b0346f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2233",
    "kind": "arxiv",
    "version": 2
  }
}