Pith Number

pith:EDHKO7JL

pith:2010:EDHKO7JLCKUVMZQSPQCSN2PI7X

not attested not anchored not stored refs pending

On the geometry of C^3/D_27 and del Pezzo surfaces

Marco Compagnoni, Sergio Luigi Cacciatori

arxiv:1001.2893 v2 · 2010-01-17 · hep-th · math-ph · math.AG · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EDHKO7JLCKUVMZQSPQCSN2PI7X}

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	2026-05-18T01:17:38.242650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20cea77d2b12a95666127c0526e9e8fdc9ad8b35a833e89b825ec8637ad9c2b0

Aliases

arxiv: 1001.2893 · arxiv_version: 1001.2893v2 · doi: 10.48550/arxiv.1001.2893 · pith_short_12: EDHKO7JLCKUV · pith_short_16: EDHKO7JLCKUVMZQS · pith_short_8: EDHKO7JL

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/EDHKO7JLCKUVMZQSPQCSN2PI7X \
  | 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: 20cea77d2b12a95666127c0526e9e8fdc9ad8b35a833e89b825ec8637ad9c2b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62c6563621128057998c97aa6421e1bf8cba733dfd8ae07da0e6e3cf3db9f3f5",
    "cross_cats_sorted": [
      "math-ph",
      "math.AG",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2010-01-17T16:07:18Z",
    "title_canon_sha256": "4c3d5a893154ae83b1c26e70a1c75c6634cfdd859577bd00afce50f4784ae949"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.2893",
    "kind": "arxiv",
    "version": 2
  }
}