Pith Number

pith:STQIHRBS

pith:2017:STQIHRBSORLTGA6XVILLRRSTLJ

not attested not anchored not stored refs pending

A complete topological classification of Morse-Smale diffeomorphisms on surfaces: a kind of kneading theory in dimension two

O.V. Pochinka, S. van Strien, V.Z. Grines

arxiv:1712.02230 v1 · 2017-12-06 · 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{STQIHRBSORLTGA6XVILLRRSTLJ}

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	2026-05-18T00:28:38.761932Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94e083c43274573303d7aa16b8c6535a467a1cc665b603d5e7421f7366f9df6c

Aliases

arxiv: 1712.02230 · arxiv_version: 1712.02230v1 · doi: 10.48550/arxiv.1712.02230 · pith_short_12: STQIHRBSORLT · pith_short_16: STQIHRBSORLTGA6X · pith_short_8: STQIHRBS

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/STQIHRBSORLTGA6XVILLRRSTLJ \
  | 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: 94e083c43274573303d7aa16b8c6535a467a1cc665b603d5e7421f7366f9df6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21834eb3c536d41d5099e75ae0c14d8b7675adb1dd5a59efe1a0674321ed05b9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2017-12-06T15:27:44Z",
    "title_canon_sha256": "c4e939439fc78e0a8f6edf3837e05784aaca8df8c90f01c433243eed890a0c3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.02230",
    "kind": "arxiv",
    "version": 1
  }
}