Pith Number

pith:PCL2RXZV

pith:2011:PCL2RXZVJSYKW43E23WT4Z3CEZ

not attested not anchored not stored refs pending

On images of Mori dream spaces

Shinnosuke Okawa

arxiv:1104.1326 v2 · 2011-04-07 · math.AG · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PCL2RXZVJSYKW43E23WT4Z3CEZ}

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	2026-05-18T01:48:07.062625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7897a8df354cb0ab7364d6ed3e676226423fd347b4aff52959aacd1c9ca2b300

Aliases

arxiv: 1104.1326 · arxiv_version: 1104.1326v2 · doi: 10.48550/arxiv.1104.1326 · pith_short_12: PCL2RXZVJSYK · pith_short_16: PCL2RXZVJSYKW43E · pith_short_8: PCL2RXZV

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/PCL2RXZVJSYKW43E23WT4Z3CEZ \
  | 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: 7897a8df354cb0ab7364d6ed3e676226423fd347b4aff52959aacd1c9ca2b300

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bab77c41b069136c14390663658f8cfe1e708841e49c64a55fa7731c596d0da",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-04-07T13:22:38Z",
    "title_canon_sha256": "7e86d75c546cea5e6ee148278e8d190fc22d93c43c30245cac8aafbd1bfd9da7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.1326",
    "kind": "arxiv",
    "version": 2
  }
}