Pith Number

pith:PIIUFDQH

pith:1994:PIIUFDQHH2WVAS6V3MM4I3IALL

not attested not anchored not stored refs pending

Q-Hermite polynomials and classical orthogonal polynomials

Christian Berg, Mourad E. H. Ismail

arxiv:math/9405213 v1 · 1994-05-24 · 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{PIIUFDQHH2WVAS6V3MM4I3IALL}

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	2026-05-18T01:05:51.373878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a11428e073ead504bd5db19c46d005af4f5aba7a341ed6bebcbfee7c80b488d

Aliases

arxiv: math/9405213 · arxiv_version: math/9405213v1 · doi: 10.48550/arxiv.math/9405213 · pith_short_12: PIIUFDQHH2WV · pith_short_16: PIIUFDQHH2WVAS6V · pith_short_8: PIIUFDQH

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/PIIUFDQHH2WVAS6V3MM4I3IALL \
  | 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: 7a11428e073ead504bd5db19c46d005af4f5aba7a341ed6bebcbfee7c80b488d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "418f7bbd03e29f92520fcd232fd6f93eeb37afe31e55d5fa53aa7e970576439f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.CA",
    "submitted_at": "1994-05-24T00:00:00Z",
    "title_canon_sha256": "9c55aaa21aad4fc59fffa8ed4425376d12b22b5abb3943219020cc04b9c0a653"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9405213",
    "kind": "arxiv",
    "version": 1
  }
}