Pith Number

pith:5NIDO7DG

pith:2013:5NIDO7DGFBESWXD6U62IU3QTVI

not attested not anchored not stored refs pending

A block Hankel generalized confluent Vandermonde matrix

Andre Klein, Peter Spreij

arxiv:1303.5869 v1 · 2013-03-23 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5NIDO7DGFBESWXD6U62IU3QTVI}

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	2026-05-18T02:48:27.436029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb50377c6628492b5c7ea7b48a6e13aa2d4ce0e7cabdd6b1f71b1e3c79beac7f

Aliases

arxiv: 1303.5869 · arxiv_version: 1303.5869v1 · doi: 10.48550/arxiv.1303.5869 · pith_short_12: 5NIDO7DGFBES · pith_short_16: 5NIDO7DGFBESWXD6 · pith_short_8: 5NIDO7DG

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/5NIDO7DGFBESWXD6U62IU3QTVI \
  | 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: eb50377c6628492b5c7ea7b48a6e13aa2d4ce0e7cabdd6b1f71b1e3c79beac7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21a816a75caed539499f7d1acdaa8e2fe92c4de7ce345f8f81d9e27fce2abc6f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2013-03-23T17:44:39Z",
    "title_canon_sha256": "be95261f832a3dc3f96f28f663384f233c00b648d6dfdcbaf1281d226714217b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.5869",
    "kind": "arxiv",
    "version": 1
  }
}