Pith Number

pith:7CVFTBP6

pith:1998:7CVFTBP6QNSBAI53DRD4RDIFC2

not attested not anchored not stored refs pending

On the Moduli space of diffeomorphic algebraic surfaces

Marco Manetti (SNS, Pisa)

arxiv:math/9802088 v1 · 1998-02-18 · 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{7CVFTBP6QNSBAI53DRD4RDIFC2}

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	2026-05-18T01:38:22.941361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8aa5985fe83641023bb1c47c88d051692b9dc65cc3f32ad6f6ad23b5f097802

Aliases

arxiv: math/9802088 · arxiv_version: math/9802088v1 · doi: 10.48550/arxiv.math/9802088 · pith_short_12: 7CVFTBP6QNSB · pith_short_16: 7CVFTBP6QNSBAI53 · pith_short_8: 7CVFTBP6

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/7CVFTBP6QNSBAI53DRD4RDIFC2 \
  | 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: f8aa5985fe83641023bb1c47c88d051692b9dc65cc3f32ad6f6ad23b5f097802

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4e2491a3056051d05fa256777c1b2a028890a93663742eff511a01b1419ddcd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "1998-02-18T11:13:34Z",
    "title_canon_sha256": "0101359aa4939a1e34370379a363d214ec8b0ec3908178f42ae538564fc70a70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9802088",
    "kind": "arxiv",
    "version": 1
  }
}