Pith Number

pith:VUGBY6C4

pith:2013:VUGBY6C4PSBJ4WHVN65HEIBFKC

not attested not anchored not stored refs pending

An Eigenvalue Problem for a Fermi System and Lie Algebras

Willi-Hans Steeb, Yorick Hardy

arxiv:1304.3991 v3 · 2013-04-15 · 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{VUGBY6C4PSBJ4WHVN65HEIBFKC}

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	2026-05-18T03:00:49.594896Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad0c1c785c7c829e58f56fba7220255085ec5dcd3ca453063e511bbb88998acd

Aliases

arxiv: 1304.3991 · arxiv_version: 1304.3991v3 · doi: 10.48550/arxiv.1304.3991 · pith_short_12: VUGBY6C4PSBJ · pith_short_16: VUGBY6C4PSBJ4WHV · pith_short_8: VUGBY6C4

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/VUGBY6C4PSBJ4WHVN65HEIBFKC \
  | 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: ad0c1c785c7c829e58f56fba7220255085ec5dcd3ca453063e511bbb88998acd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "148c60b8b5d616965440e7f97e0a15143c7a5de4a8311432329f9c06f0207865",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2013-04-15T05:51:54Z",
    "title_canon_sha256": "9afe893e53248093817dbbbeffcd4aa582bfb9a29de71d9311c19e2ab80de8c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3991",
    "kind": "arxiv",
    "version": 3
  }
}