Pith Number

pith:52ZN4QMY

pith:2017:52ZN4QMYZMYWLQRDXCP4WKXCGC

not attested not anchored not stored refs pending

Connecting Commuting Normal Matrices

Fredy Vides

arxiv:1708.05777 v1 · 2017-08-18 · math.OA · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{52ZN4QMYZMYWLQRDXCP4WKXCGC}

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	2026-05-18T00:37:44.356665Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eeb2de4198cb3165c223b89fcb2ae230943e10f41a35272975b6c1961aafce3b

Aliases

arxiv: 1708.05777 · arxiv_version: 1708.05777v1 · doi: 10.48550/arxiv.1708.05777 · pith_short_12: 52ZN4QMYZMYW · pith_short_16: 52ZN4QMYZMYWLQRD · pith_short_8: 52ZN4QMY

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/52ZN4QMYZMYWLQRDXCP4WKXCGC \
  | 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: eeb2de4198cb3165c223b89fcb2ae230943e10f41a35272975b6c1961aafce3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "837e66042d9437c7a3fd4e611887bc332f81edca061b7cfe6b6a2148a4dbd7a8",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2017-08-18T22:48:39Z",
    "title_canon_sha256": "d25fa092ba91f2e62bdd07128f1d3e0af922f05d625f7838fdde40cc189b7d01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.05777",
    "kind": "arxiv",
    "version": 1
  }
}