Pith Number

pith:FDFSVD4H

pith:2026:FDFSVD4H2O23AQYYKIN6AL4VCI

not attested not anchored not stored refs pending

Enriques' characterization of Abelian surfaces in positive characteristic

Gebhard Martin, Jefferson Baudin

arxiv:2605.20010 v1 · 2026-05-19 · 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{FDFSVD4H2O23AQYYKIN6AL4VCI}

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	2026-05-20T02:05:58.823143Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28cb2a8f87d3b5b04318521be02f95122d0fbf577106ef90c946a087f550e684

Aliases

arxiv: 2605.20010 · arxiv_version: 2605.20010v1 · doi: 10.48550/arxiv.2605.20010 · pith_short_12: FDFSVD4H2O23 · pith_short_16: FDFSVD4H2O23AQYY · pith_short_8: FDFSVD4H

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/FDFSVD4H2O23AQYYKIN6AL4VCI \
  | 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: 28cb2a8f87d3b5b04318521be02f95122d0fbf577106ef90c946a087f550e684

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d3f8ae4a1c3c133fac7acbf270a7f8a0e789d2e09b6396ad4dd438ad1ad0e34",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2026-05-19T15:41:22Z",
    "title_canon_sha256": "cc173de5f16ff17528c78402ed597c76ee156f43a5065a5a2eab68405f710bfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20010",
    "kind": "arxiv",
    "version": 1
  }
}