Pith Number

pith:ZF6HR43G

pith:2014:ZF6HR43G2PDG754QRZHECFIWEG

not attested not anchored not stored refs pending

A question of Doctor Malte Wandel on automorphisms of the punctural Hilbert schemes of K3 surfaces

Keiji Oguiso

arxiv:1402.4228 v2 · 2014-02-18 · 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{ZF6HR43G2PDG754QRZHECFIWEG}

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	2026-05-18T02:30:32.211867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c97c78f366d3c66ff7908e4e411516219247fca3ea1c40197ed9ba4ad2abcfe0

Aliases

arxiv: 1402.4228 · arxiv_version: 1402.4228v2 · doi: 10.48550/arxiv.1402.4228 · pith_short_12: ZF6HR43G2PDG · pith_short_16: ZF6HR43G2PDG754Q · pith_short_8: ZF6HR43G

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/ZF6HR43G2PDG754QRZHECFIWEG \
  | 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: c97c78f366d3c66ff7908e4e411516219247fca3ea1c40197ed9ba4ad2abcfe0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef04c56ad2f3af41557832f761e174fd35b75abdc9fcae5f84e81579fa7d32a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-02-18T05:51:45Z",
    "title_canon_sha256": "e5e3afb8509a08d42dc53a83ff09b448ab311863e5a43817fb857acf0657655d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.4228",
    "kind": "arxiv",
    "version": 2
  }
}