Pith Number

pith:CLISYUPP

pith:2012:CLISYUPP64PVQYWOSA47XZT4PH

not attested not anchored not stored refs pending

Geometric decompositions of almost contact manifolds

Francisco Presas

arxiv:1211.4696 v1 · 2012-11-20 · math.SG · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CLISYUPP64PVQYWOSA47XZT4PH}

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	2026-05-18T03:40:24.895838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12d12c51eff71f5862ce9039fbe67c79eba9d184bb040f6ced10b40af4f3b40b

Aliases

arxiv: 1211.4696 · arxiv_version: 1211.4696v1 · doi: 10.48550/arxiv.1211.4696 · pith_short_12: CLISYUPP64PV · pith_short_16: CLISYUPP64PVQYWO · pith_short_8: CLISYUPP

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/CLISYUPP64PVQYWOSA47XZT4PH \
  | 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: 12d12c51eff71f5862ce9039fbe67c79eba9d184bb040f6ced10b40af4f3b40b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43bb29bc20ddde2a6155f470c6273e083db284a52b365fc5d840ba01308606be",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2012-11-20T09:55:11Z",
    "title_canon_sha256": "bdb3dc33549fd8b9bfad5d30d787de51333f200216ba8c6099eb83550d1010e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4696",
    "kind": "arxiv",
    "version": 1
  }
}