Pith Number

pith:2ZOJ2HG4

pith:2015:2ZOJ2HG47HZG5JA56IJM5BP3R2

not attested not anchored not stored refs pending

The automorphism groups of Enriques surfaces covered by symmetric quartic surfaces

Hisanori Ohashi, Shigeru Mukai

arxiv:1507.00682 v1 · 2015-07-02 · 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{2ZOJ2HG47HZG5JA56IJM5BP3R2}

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	2026-05-18T01:37:23.891770Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d65c9d1cdcf9f26ea41df212ce85fb8ebb7329a19ce46d1d0621de5561a28a28

Aliases

arxiv: 1507.00682 · arxiv_version: 1507.00682v1 · doi: 10.48550/arxiv.1507.00682 · pith_short_12: 2ZOJ2HG47HZG · pith_short_16: 2ZOJ2HG47HZG5JA5 · pith_short_8: 2ZOJ2HG4

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/2ZOJ2HG47HZG5JA56IJM5BP3R2 \
  | 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: d65c9d1cdcf9f26ea41df212ce85fb8ebb7329a19ce46d1d0621de5561a28a28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5572e6590ad6732d93b154993d975073b4882a8fda376e0bdfd49d3e3e0814db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-07-02T18:27:57Z",
    "title_canon_sha256": "9e664a12c34347cb70c86bbcc6b44048a16f3e1204d9e27c787bf085b97dd8ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.00682",
    "kind": "arxiv",
    "version": 1
  }
}