Pith Number

pith:IVDY5UJG

pith:2014:IVDY5UJGIHID7GG4DLXJA62UOV

not attested not anchored not stored refs pending

Conformal equivalence of sub-Riemannian 3D contact structures on Lie groups

Francesco Boarotto

arxiv:1412.2358 v2 · 2014-12-07 · 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{IVDY5UJGIHID7GG4DLXJA62UOV}

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	2026-05-18T00:47:21.353303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45478ed12641d03f98dc1aee907b5475575762fc76c468c756a0c88895b3ae82

Aliases

arxiv: 1412.2358 · arxiv_version: 1412.2358v2 · doi: 10.48550/arxiv.1412.2358 · pith_short_12: IVDY5UJGIHID · pith_short_16: IVDY5UJGIHID7GG4 · pith_short_8: IVDY5UJG

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/IVDY5UJGIHID7GG4DLXJA62UOV \
  | 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: 45478ed12641d03f98dc1aee907b5475575762fc76c468c756a0c88895b3ae82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e1856bd0e767b6c3ea90f378f40f5e5b1f08cd8519d88835193fbc4f7c41f28",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-12-07T15:32:04Z",
    "title_canon_sha256": "81161c84f2fd4b5a729fbb1369ab743135bd9022926c5788f1c6221f66f518ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.2358",
    "kind": "arxiv",
    "version": 2
  }
}