Pith Number

pith:RQOXU6IW

pith:2012:RQOXU6IW5ZGVQCPCIQJRYJAOM6

not attested not anchored not stored refs pending

Almost K\"ahler structures on four dimensional unimodular Lie algebras

Adriano Tomassini, Tian-Jun Li

arxiv:1203.4331 v1 · 2012-03-20 · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RQOXU6IW5ZGVQCPCIQJRYJAOM6}

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	2026-05-18T01:58:05.721375Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c1d7a7916ee4d5809e244131c240e67a1f7ce83f8100149c1a096c83fc8d398

Aliases

arxiv: 1203.4331 · arxiv_version: 1203.4331v1 · doi: 10.48550/arxiv.1203.4331 · pith_short_12: RQOXU6IW5ZGV · pith_short_16: RQOXU6IW5ZGVQCPC · pith_short_8: RQOXU6IW

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/RQOXU6IW5ZGVQCPCIQJRYJAOM6 \
  | 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: 8c1d7a7916ee4d5809e244131c240e67a1f7ce83f8100149c1a096c83fc8d398

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ff066b347452dee785e4d6e706b7391d3ee33012292be452c1ff1469870c660",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2012-03-20T07:25:05Z",
    "title_canon_sha256": "d07108433c910570aaa7148667cd22eded47ae97a3e6f3dc79131d26999cf9a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.4331",
    "kind": "arxiv",
    "version": 1
  }
}