Pith Number

pith:WTJGZWDX

pith:2014:WTJGZWDXFCDX3CYFU47SQKKORB

not attested not anchored not stored refs pending

Picard groups on moduli of K3 surfaces with Mukai models

Francois Greer, Zhiyuan Li, Zhiyu Tian

arxiv:1402.2330 v3 · 2014-02-10 · 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{WTJGZWDXFCDX3CYFU47SQKKORB}

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	2026-05-18T02:56:06.232439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4d26cd87728877d8b05a73f28294e886cb8487c95a7892a2fff89d936b2a35e

Aliases

arxiv: 1402.2330 · arxiv_version: 1402.2330v3 · doi: 10.48550/arxiv.1402.2330 · pith_short_12: WTJGZWDXFCDX · pith_short_16: WTJGZWDXFCDX3CYF · pith_short_8: WTJGZWDX

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/WTJGZWDXFCDX3CYFU47SQKKORB \
  | 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: b4d26cd87728877d8b05a73f28294e886cb8487c95a7892a2fff89d936b2a35e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f036fa2e3b8d8523965211fb3bc2f769cd3553e198b4f9866c9e5324c27f249",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-02-10T23:42:07Z",
    "title_canon_sha256": "61d86808740ba42725f35329bd61a75e2abdb332a1778d286be01da03abb3774"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2330",
    "kind": "arxiv",
    "version": 3
  }
}