Pith Number

pith:HL3KKOMC

pith:2014:HL3KKOMCYBFC44Q2JK4JCU6CQZ

not attested not anchored not stored refs pending

Comments on the del Pezzo cone

Dmitri Bykov

arxiv:1405.2319 v1 · 2014-05-09 · hep-th · gr-qc · 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{HL3KKOMCYBFC44Q2JK4JCU6CQZ}

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	2026-05-18T02:52:13.120717Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3af6a53982c04a2e721a4ab89153c2865657e6899eeda327a28893730383bc65

Aliases

arxiv: 1405.2319 · arxiv_version: 1405.2319v1 · doi: 10.48550/arxiv.1405.2319 · pith_short_12: HL3KKOMCYBFC · pith_short_16: HL3KKOMCYBFC44Q2 · pith_short_8: HL3KKOMC

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/HL3KKOMCYBFC44Q2JK4JCU6CQZ \
  | 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: 3af6a53982c04a2e721a4ab89153c2865657e6899eeda327a28893730383bc65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffd763f2f00b3af482f2cea0b5248343f0e833fd238229105df22e19fbd5e081",
    "cross_cats_sorted": [
      "gr-qc",
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2014-05-09T19:06:28Z",
    "title_canon_sha256": "a6863c6eb450894b668bd07e86379bf56cfae98ea7e9d38145dd2b9499297c35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.2319",
    "kind": "arxiv",
    "version": 1
  }
}