Pith Number

pith:XSVMKQMP

pith:2008:XSVMKQMPRX2ZB6LSYZQUGDQJAD

not attested not anchored not stored refs pending

Lattices and Periodic Geodesics in Pseudoriemannian 2-step Nilpotent Lie Groups

Luis A. Cordero, Phillip E. Parker

arxiv:0802.3771 v1 · 2008-02-26 · math.DG · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XSVMKQMPRX2ZB6LSYZQUGDQJAD}

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	2026-05-18T04:21:21.608877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcaac5418f8df590f972c661430e0900fb6979f8f61e4e5265017d16b5f7d344

Aliases

arxiv: 0802.3771 · arxiv_version: 0802.3771v1 · doi: 10.48550/arxiv.0802.3771 · pith_short_12: XSVMKQMPRX2Z · pith_short_16: XSVMKQMPRX2ZB6LS · pith_short_8: XSVMKQMP

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/XSVMKQMPRX2ZB6LSYZQUGDQJAD \
  | 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: bcaac5418f8df590f972c661430e0900fb6979f8f61e4e5265017d16b5f7d344

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c46fa46e61c993fc6a2e9c31ec2c5957992972317bd5bbf89cd5fbdf35ba0b1d",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2008-02-26T09:01:55Z",
    "title_canon_sha256": "ba4826135184291b3e21f2b6530facef013586f6366c411a17d3d580aa065cec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.3771",
    "kind": "arxiv",
    "version": 1
  }
}