Pith Number

pith:EYNKXDBA

pith:2013:EYNKXDBAYBYITFKSA3MQGXJQXN

not attested not anchored not stored refs pending

A note on the K\"ahler and Mori cones of hyperk\"ahler manifolds

Giovanni Mongardi

arxiv:1307.0393 v3 · 2013-07-01 · math.AG · math.DG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EYNKXDBAYBYITFKSA3MQGXJQXN}

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	2026-05-18T02:55:39.144169Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

261aab8c20c07089955206d9035d30bb55d29077cdf7d6ab6e5d94c9e42c64cb

Aliases

arxiv: 1307.0393 · arxiv_version: 1307.0393v3 · doi: 10.48550/arxiv.1307.0393 · pith_short_12: EYNKXDBAYBYI · pith_short_16: EYNKXDBAYBYITFKS · pith_short_8: EYNKXDBA

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/EYNKXDBAYBYITFKSA3MQGXJQXN \
  | 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: 261aab8c20c07089955206d9035d30bb55d29077cdf7d6ab6e5d94c9e42c64cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "425b7429ecc449eb0dcaaa42e2d18cdcfe2ad55b5296e8f55ae727cc42251aaa",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-07-01T14:51:44Z",
    "title_canon_sha256": "f611ec8556a5b76a3898ff365b83a98d584b2bbc0ba3e812bef15685d65197c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.0393",
    "kind": "arxiv",
    "version": 3
  }
}