Pith Number

pith:OKQHWTZF

pith:2012:OKQHWTZFV5CSHRJVKKJP4EKW2S

not attested not anchored not stored refs pending

Sasakian metrics with an additional contact structure

Philippe Rukimbira, Tedi Draghici

arxiv:1212.6581 v1 · 2012-12-29 · 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{OKQHWTZFV5CSHRJVKKJP4EKW2S}

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	2026-05-18T03:37:31.499289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72a07b4f25af4523c5355292fe1156d49960464da280c48b213df148b9bee4fe

Aliases

arxiv: 1212.6581 · arxiv_version: 1212.6581v1 · doi: 10.48550/arxiv.1212.6581 · pith_short_12: OKQHWTZFV5CS · pith_short_16: OKQHWTZFV5CSHRJV · pith_short_8: OKQHWTZF

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/OKQHWTZFV5CSHRJVKKJP4EKW2S \
  | 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: 72a07b4f25af4523c5355292fe1156d49960464da280c48b213df148b9bee4fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbdefa6764f2355d51c1960f325f92a543b3b768ee4e0bc94fa9b8ddb87d3d7f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-12-29T01:27:26Z",
    "title_canon_sha256": "de5be8d2f8ac5c048d64f203999e6c0e58409e78b44228d339d0bae76f9c70a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.6581",
    "kind": "arxiv",
    "version": 1
  }
}