Pith Number

pith:V7IZDUT5

pith:2009:V7IZDUT5BAVIQRS3WMWY4TNSXO

not attested not anchored not stored refs pending

Order 6 non-symplectic automorphisms of K3 surfaces

Jimmy Dillies

arxiv:0912.5228 v2 · 2009-12-28 · 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{V7IZDUT5BAVIQRS3WMWY4TNSXO}

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	2026-05-18T02:24:45.328904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

afd191d27d082a88465bb32d8e4db2bb8fd5405c1a1511053467e48b3f06ddbc

Aliases

arxiv: 0912.5228 · arxiv_version: 0912.5228v2 · doi: 10.48550/arxiv.0912.5228 · pith_short_12: V7IZDUT5BAVI · pith_short_16: V7IZDUT5BAVIQRS3 · pith_short_8: V7IZDUT5

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/V7IZDUT5BAVIQRS3WMWY4TNSXO \
  | 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: afd191d27d082a88465bb32d8e4db2bb8fd5405c1a1511053467e48b3f06ddbc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0dc77796543db6de23a64e585a83dedf114da37249969c7208bb08cf8bb4ed68",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2009-12-28T23:53:44Z",
    "title_canon_sha256": "f34e07504db49494bc6dc51ce26ac51b81323a548d5f6b870848b0d5f127b468"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.5228",
    "kind": "arxiv",
    "version": 2
  }
}