Pith Number

pith:HRKF7RQT

pith:2006:HRKF7RQTXDI5LYLZUABGIH54LI

not attested not anchored not stored refs pending

A note on infinite extreme correlation matrices

J. Kiukas, J.-P. Pellonp\"a\"a

arxiv:math/0612537 v1 · 2006-12-19 · math.GM · math-ph · math.FA · 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{HRKF7RQTXDI5LYLZUABGIH54LI}

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	2026-05-18T04:39:08.653861Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c545fc613b8d1d5e179a002641fbc5a1b1a8b8d5d21b911a68ddeaa34509550

Aliases

arxiv: math/0612537 · arxiv_version: math/0612537v1 · doi: 10.48550/arxiv.math/0612537 · pith_short_12: HRKF7RQTXDI5 · pith_short_16: HRKF7RQTXDI5LYLZ · pith_short_8: HRKF7RQT

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/HRKF7RQTXDI5LYLZUABGIH54LI \
  | 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: 3c545fc613b8d1d5e179a002641fbc5a1b1a8b8d5d21b911a68ddeaa34509550

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "840e4e270df200f7d02b17bc4a202ed29d36fbc2f554c9cde209dd167ccddabe",
    "cross_cats_sorted": [
      "math-ph",
      "math.FA",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "math.GM",
    "submitted_at": "2006-12-19T09:04:17Z",
    "title_canon_sha256": "27805e2d3e09ca80ba78bc6972bcb1fa9a0ee9c5fb88b96961ccd049e87caeb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0612537",
    "kind": "arxiv",
    "version": 1
  }
}