Pith Number

pith:HBGH5UHQ

pith:2018:HBGH5UHQMIQDZ6KMT6LBNC63R7

not attested not anchored not stored refs pending

Moduli of surface diffeomorphisms with cubic tangencies

Shinobu Hashimoto

arxiv:1804.08400 v1 · 2018-04-23 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HBGH5UHQMIQDZ6KMT6LBNC63R7}

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	2026-05-18T00:17:48.506940Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

384c7ed0f062203cf94c9f96168bdb8fe4f1a46b7e275982a9f04184d4c2083c

Aliases

arxiv: 1804.08400 · arxiv_version: 1804.08400v1 · doi: 10.48550/arxiv.1804.08400 · pith_short_12: HBGH5UHQMIQD · pith_short_16: HBGH5UHQMIQDZ6KM · pith_short_8: HBGH5UHQ

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/HBGH5UHQMIQDZ6KMT6LBNC63R7 \
  | 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: 384c7ed0f062203cf94c9f96168bdb8fe4f1a46b7e275982a9f04184d4c2083c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6bfb77e5baec2cddef56a3f2a9074a4ec2baebc19a7fe33e375edabd85436d58",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2018-04-23T13:31:51Z",
    "title_canon_sha256": "e63a5c961d3a0f964a22a1cd15286b39138eacb06bbf786b89ff1551d8f75ed2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08400",
    "kind": "arxiv",
    "version": 1
  }
}