Pith Number

pith:M6SBC3XC

pith:2004:M6SBC3XCTNNMECMQI3BMFB7WGC

not attested not anchored not stored refs pending

Extensions of the alternating group of degree 6 in the geometry of K3 surfaces

De-Qi Zhang, JongHae Keum, Keiji Oguiso

arxiv:math/0408105 v1 · 2004-08-09 · 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{M6SBC3XCTNNMECMQI3BMFB7WGC}

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	2026-05-18T00:12:57.526581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67a4116ee29b5ac2099046c2c287f630a12a9528e98ae45eb7d014d0011770d9

Aliases

arxiv: math/0408105 · arxiv_version: math/0408105v1 · doi: 10.48550/arxiv.math/0408105 · pith_short_12: M6SBC3XCTNNM · pith_short_16: M6SBC3XCTNNMECMQ · pith_short_8: M6SBC3XC

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/M6SBC3XCTNNMECMQI3BMFB7WGC \
  | 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: 67a4116ee29b5ac2099046c2c287f630a12a9528e98ae45eb7d014d0011770d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1832979d2cdfe7632a3c47d9d5bf6505c4921c0b622294dec2db210a879c6794",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2004-08-09T03:54:13Z",
    "title_canon_sha256": "a4c85644447bc810c62e789d12b14ab12a771a4724eaeb7a9494e382e91197a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0408105",
    "kind": "arxiv",
    "version": 1
  }
}