Pith Number

pith:OUDVC7HP

pith:2009:OUDVC7HPFP7K3WFET3IOWXJGVC

not attested not anchored not stored refs pending

Linear Equation in Finite Dimensional Algebra

Aleks Kleyn

arxiv:0912.4061 v3 · 2009-12-21 · math.GM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OUDVC7HPFP7K3WFET3IOWXJGVC}

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	2026-05-18T03:56:45.350148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7507517cef2bfeadd8a49ed0eb5d26a8985536d8557381229acb7a04e6ea2121

Aliases

arxiv: 0912.4061 · arxiv_version: 0912.4061v3 · doi: 10.48550/arxiv.0912.4061 · pith_short_12: OUDVC7HPFP7K · pith_short_16: OUDVC7HPFP7K3WFE · pith_short_8: OUDVC7HP

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/OUDVC7HPFP7K3WFET3IOWXJGVC \
  | 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: 7507517cef2bfeadd8a49ed0eb5d26a8985536d8557381229acb7a04e6ea2121

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e368afeee5d816b8299926e81acd719ef387e8935ff39c7c3d8927a53f0106a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2009-12-21T02:49:37Z",
    "title_canon_sha256": "6cce4012c047d6174446533cd17b25cb0ad0b45eb802e502f95d7a83fdda7c5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4061",
    "kind": "arxiv",
    "version": 3
  }
}