Pith Number

pith:VDAFI66V

pith:2018:VDAFI66VJDV64TND3YEHYTPAWY

not attested not anchored not stored refs pending

Spectral representation of some weighted Hankel matrices and orthogonal polynomials from the Askey scheme

Franti\v{s}ek \v{S}tampach, Pavel \v{S}\v{t}ov\'i\v{c}ek

arxiv:1811.05820 v1 · 2018-11-14 · math.SP · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VDAFI66VJDV64TND3YEHYTPAWY}

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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	2026-05-18T00:00:42.035363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8c0547bd548ebee4da3de087c4de0b61214eac2968d8c7db4217dfebd0bec5e

Aliases

arxiv: 1811.05820 · arxiv_version: 1811.05820v1 · doi: 10.48550/arxiv.1811.05820 · pith_short_12: VDAFI66VJDV6 · pith_short_16: VDAFI66VJDV64TND · pith_short_8: VDAFI66V

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/VDAFI66VJDV64TND3YEHYTPAWY \
  | 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: a8c0547bd548ebee4da3de087c4de0b61214eac2968d8c7db4217dfebd0bec5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02019e123050464e110a98d4c3a44ba0e9fc3d76e889afe99d474a3e56820a70",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2018-11-14T14:53:56Z",
    "title_canon_sha256": "57b5a3cfccfc341f2ee30d6c7978ab9d367dd7e9881ec34f3b1d505c225439d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.05820",
    "kind": "arxiv",
    "version": 1
  }
}