Pith Number

pith:CG7MA3JT

pith:2012:CG7MA3JTKEYDT53S5CHWEJM5ME

not attested not anchored not stored refs pending

The octonionic eigenvalue problem

Gisele Ducati, Stefano De Leo

arxiv:1208.4999 v1 · 2012-08-24 · 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{CG7MA3JTKEYDT53S5CHWEJM5ME}

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	2026-05-18T01:54:58.578463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11bec06d33513039f772e88f62259d613044bedefe968fd9dae530250dc9503e

Aliases

arxiv: 1208.4999 · arxiv_version: 1208.4999v1 · doi: 10.48550/arxiv.1208.4999 · pith_short_12: CG7MA3JTKEYD · pith_short_16: CG7MA3JTKEYDT53S · pith_short_8: CG7MA3JT

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/CG7MA3JTKEYDT53S5CHWEJM5ME \
  | 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: 11bec06d33513039f772e88f62259d613044bedefe968fd9dae530250dc9503e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0121986d2d7a557d6194ec3786b410a374d46397c3ccdbfcd7fb99fbcefd7a2",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2012-08-24T15:15:17Z",
    "title_canon_sha256": "51f46afc6d8ee8d9ead36690b619a22080d159641623928e066fb29e0e1718c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.4999",
    "kind": "arxiv",
    "version": 1
  }
}