Pith Number

pith:COO5X5F6

pith:2011:COO5X5F6R56QCUHNXIPRALV54B

not attested not anchored not stored refs pending

Classification of 7-dimensional Einstein nilradicals

Edison Alberto Fern\'andez-Culma

arxiv:1105.4489 v2 · 2011-05-23 · math.DG · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{COO5X5F6R56QCUHNXIPRALV54B}

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	2026-05-18T03:12:58.212619Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

139ddbf4be8f7d0150edba1f102ebde067f47ef41d416f586b4afe9110a29cdd

Aliases

arxiv: 1105.4489 · arxiv_version: 1105.4489v2 · doi: 10.48550/arxiv.1105.4489 · pith_short_12: COO5X5F6R56Q · pith_short_16: COO5X5F6R56QCUHN · pith_short_8: COO5X5F6

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/COO5X5F6R56QCUHNXIPRALV54B \
  | 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: 139ddbf4be8f7d0150edba1f102ebde067f47ef41d416f586b4afe9110a29cdd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11f4f587f729bd28611f384d4825b7f4d1ab127fb6ff0e22f6ffa93736a9b0b2",
    "cross_cats_sorted": [
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-05-23T13:11:56Z",
    "title_canon_sha256": "2e3ef74c5d4b73498319072eb80a9e7ff0e738044fdcd6b29ac21f5ce2d5de3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.4489",
    "kind": "arxiv",
    "version": 2
  }
}