Pith Number

pith:EOCEK366

pith:2014:EOCEK366MKGFGQCKNF7DVDWCTQ

not attested not anchored not stored refs pending

The Hodge number h^1,1 of irregular algebraic surfaces

Andrea Causin, Gian Pietro Pirola, Margarida Mendes Lopes

arxiv:1402.6357 v1 · 2014-02-25 · 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{EOCEK366MKGFGQCKNF7DVDWCTQ}

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	2026-05-18T02:57:44.686193Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2384456fde628c53404a697e3a8ec29c1b83d4baaf922ad1be1ef204d427eb0d

Aliases

arxiv: 1402.6357 · arxiv_version: 1402.6357v1 · doi: 10.48550/arxiv.1402.6357 · pith_short_12: EOCEK366MKGF · pith_short_16: EOCEK366MKGFGQCK · pith_short_8: EOCEK366

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/EOCEK366MKGFGQCKNF7DVDWCTQ \
  | 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: 2384456fde628c53404a697e3a8ec29c1b83d4baaf922ad1be1ef204d427eb0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4dab3e1952c3ef1da80e4bf343f72a54cd9207fbd31600c9e857530f09d44c0c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-02-25T21:40:13Z",
    "title_canon_sha256": "85ca6f054e8e7390d98ea5175e6bec93fa5c4286216a1c861c4b9953cb438010"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.6357",
    "kind": "arxiv",
    "version": 1
  }
}