Pith Number

pith:H7S6R4EQ

pith:1996:H7S6R4EQEUEL6WKFIZXLCIVNW2

not attested not anchored not stored refs pending

The algebraic dimension of compact complex threefolds with vanishing second Betti number

Fr\'ed\'eric Campana, Jean-Pierre Demailly, Thomas Peternell

arxiv:math/9607215 v1 · 1996-07-08 · math.AG · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H7S6R4EQEUEL6WKFIZXLCIVNW2}

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	2026-05-18T01:05:47.205184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fe5e8f0902508bf5945466eb122adb68c8216cd50139d5c903d582df6abc4f8

Aliases

arxiv: math/9607215 · arxiv_version: math/9607215v1 · doi: 10.48550/arxiv.math/9607215 · pith_short_12: H7S6R4EQEUEL · pith_short_16: H7S6R4EQEUEL6WKF · pith_short_8: H7S6R4EQ

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/H7S6R4EQEUEL6WKFIZXLCIVNW2 \
  | 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: 3fe5e8f0902508bf5945466eb122adb68c8216cd50139d5c903d582df6abc4f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d660fa0b3a5ce2031b22824c20e05ce9b99eb77fc87a9069e8c65f0296168df6",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "1996-07-08T00:00:00Z",
    "title_canon_sha256": "a1e799b4946b78b72434ace6b1ed6c4331aad3e41e9e4af8e23eb93025eac746"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9607215",
    "kind": "arxiv",
    "version": 1
  }
}