Pith Number

pith:YWSDRYYL

pith:2015:YWSDRYYLDNWSR2E6CN5ER7W46B

not attested not anchored not stored refs pending

Lie groups as 3-dimensional almost contact B-metric manifolds in two main classes

Miroslava Ivanova

arxiv:1504.04151 v1 · 2015-04-16 · 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{YWSDRYYLDNWSR2E6CN5ER7W46B}

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	2026-05-18T02:18:39.672269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5a438e30b1b6d28e89e137a48fedcf051a292ec57f7c46f64f8dbccd3aa24fd

Aliases

arxiv: 1504.04151 · arxiv_version: 1504.04151v1 · doi: 10.48550/arxiv.1504.04151 · pith_short_12: YWSDRYYLDNWS · pith_short_16: YWSDRYYLDNWSR2E6 · pith_short_8: YWSDRYYL

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/YWSDRYYLDNWSR2E6CN5ER7W46B \
  | 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: c5a438e30b1b6d28e89e137a48fedcf051a292ec57f7c46f64f8dbccd3aa24fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42ac1da892deb81c831123ae77e47fe805aef332c8071243c40d6554146919bd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-04-16T09:23:21Z",
    "title_canon_sha256": "eabcf662d2fb3175e98d4ff7f13527aa35cfab49d4f25203b9f39628bd7f7678"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04151",
    "kind": "arxiv",
    "version": 1
  }
}