Pith Number

pith:NUWTDOPB

pith:2012:NUWTDOPBOA7UX4XKWWTYK7FMB2

not attested not anchored not stored refs pending

Orders of automorphisms of K3 surfaces

JongHae Keum

arxiv:1203.5616 v9 · 2012-03-26 · 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{NUWTDOPBOA7UX4XKWWTYK7FMB2}

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	2026-05-18T03:12:46.566584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d2d31b9e1703f4bf2eab5a7857cac0eac6fa222113c0fcc13378c55a2c6694c

Aliases

arxiv: 1203.5616 · arxiv_version: 1203.5616v9 · doi: 10.48550/arxiv.1203.5616 · pith_short_12: NUWTDOPBOA7U · pith_short_16: NUWTDOPBOA7UX4XK · pith_short_8: NUWTDOPB

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/NUWTDOPBOA7UX4XKWWTYK7FMB2 \
  | 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: 6d2d31b9e1703f4bf2eab5a7857cac0eac6fa222113c0fcc13378c55a2c6694c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ae5b0ae6a2fd68b6003e7b9f0994a0b3026a6e2ff2d064e43f32d05c6a13ff9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-03-26T09:57:34Z",
    "title_canon_sha256": "ac60adcb754322a6ae86849b0be17390177b2f127ba6d64c005d8a39d88f851d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5616",
    "kind": "arxiv",
    "version": 9
  }
}