Pith Number

pith:QHHAD6KQ

pith:2016:QHHAD6KQSAPLVNQFMK3CG6QD7G

not attested not anchored not stored refs pending

On rigid compact complex surfaces and manifolds

Fabrizio Catanese (Universitaet Bayreuth), Ingrid Bauer

arxiv:1609.08128 v1 · 2016-09-26 · 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{QHHAD6KQSAPLVNQFMK3CG6QD7G}

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	2026-05-18T01:03:54.351966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81ce01f950901ebab60562b6237a03f981944cd0a843c7b288bb3f0fe123998a

Aliases

arxiv: 1609.08128 · arxiv_version: 1609.08128v1 · doi: 10.48550/arxiv.1609.08128 · pith_short_12: QHHAD6KQSAPL · pith_short_16: QHHAD6KQSAPLVNQF · pith_short_8: QHHAD6KQ

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/QHHAD6KQSAPLVNQFMK3CG6QD7G \
  | 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: 81ce01f950901ebab60562b6237a03f981944cd0a843c7b288bb3f0fe123998a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f049cedbe0f54339cebbb7cf7e61a098e6cc4af0fc34772257ebaf464fa1c588",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-09-26T19:21:13Z",
    "title_canon_sha256": "862957175da9dfaad0e6362634958efc005396bbf14ed92f1cb38d11c45b32f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.08128",
    "kind": "arxiv",
    "version": 1
  }
}