Pith Number

pith:4B4Z253U

pith:2012:4B4Z253UBAMVVQ4R277ZVNOZLV

not attested not anchored not stored refs pending

Rationality of the moduli spaces of 2-elementary K3 surfaces II

Shouhei Ma

arxiv:1205.4783 v2 · 2012-05-22 · 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{4B4Z253UBAMVVQ4R277ZVNOZLV}

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	2026-05-18T03:45:33.171002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0799d777408195ac391d7ff9ab5d95d7afcdf9a8969da9a9accecd831aca70a

Aliases

arxiv: 1205.4783 · arxiv_version: 1205.4783v2 · doi: 10.48550/arxiv.1205.4783 · pith_short_12: 4B4Z253UBAMV · pith_short_16: 4B4Z253UBAMVVQ4R · pith_short_8: 4B4Z253U

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/4B4Z253UBAMVVQ4R277ZVNOZLV \
  | 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: e0799d777408195ac391d7ff9ab5d95d7afcdf9a8969da9a9accecd831aca70a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "662109cc7d91ef3e699a76ab451f311cf09dab0016d8a92c8360d4791ad0bcb2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-05-22T01:46:06Z",
    "title_canon_sha256": "fcb23ce7b9b71dfc9d63be7196c45bfad50f8304dba4ca0a868b125b5c423ebb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.4783",
    "kind": "arxiv",
    "version": 2
  }
}