Pith Number

pith:SCUNWOWE

pith:2015:SCUNWOWEZZPVHEBVJDYAFYJ5SH

not attested not anchored not stored refs pending

K3 surfaces with an order 50 automorphism

JongHae Keum

arxiv:1502.01448 v1 · 2015-02-05 · 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{SCUNWOWEZZPVHEBVJDYAFYJ5SH}

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	2026-05-18T02:27:52.024023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90a8db3ac4ce5f53903548f002e13d91ed359275c6ebd5e385f0a48852a1bb50

Aliases

arxiv: 1502.01448 · arxiv_version: 1502.01448v1 · doi: 10.48550/arxiv.1502.01448 · pith_short_12: SCUNWOWEZZPV · pith_short_16: SCUNWOWEZZPVHEBV · pith_short_8: SCUNWOWE

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/SCUNWOWEZZPVHEBVJDYAFYJ5SH \
  | 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: 90a8db3ac4ce5f53903548f002e13d91ed359275c6ebd5e385f0a48852a1bb50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d5c984da88363e38498252d13d33742e20c513c63d63b98c114ad227f966ca2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-02-05T07:55:57Z",
    "title_canon_sha256": "e982d91b2578401b1b02391d3ea2809309cc9163bbfb44c08a90c4c7836fb640"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.01448",
    "kind": "arxiv",
    "version": 1
  }
}