Pith Number

pith:2PCHHZYG

pith:2009:2PCHHZYGXEZHEGT35KXMW5TKM6

not attested not anchored not stored refs pending

A high order $q$-difference equation for $q$-Hahn multiple orthogonal polynomials

Chiara Esposito, Jorge Arves\'u Carballo

arxiv:0910.4041 v1 · 2009-10-21 · 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{2PCHHZYGXEZHEGT35KXMW5TKM6}

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	2026-05-18T00:48:06.152646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3c473e706b932721a7beaaecb766a67b0c14eaa8df63fadb1cafd02be5a589d

Aliases

arxiv: 0910.4041 · arxiv_version: 0910.4041v1 · doi: 10.48550/arxiv.0910.4041 · pith_short_12: 2PCHHZYGXEZH · pith_short_16: 2PCHHZYGXEZHEGT3 · pith_short_8: 2PCHHZYG

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/2PCHHZYGXEZHEGT35KXMW5TKM6 \
  | 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: d3c473e706b932721a7beaaecb766a67b0c14eaa8df63fadb1cafd02be5a589d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "376fae776b261bc14deb21bab9d074f2b760f814998de9cdf1e0000415a7c764",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2009-10-21T10:26:28Z",
    "title_canon_sha256": "49c28a050e7a88a950493cc171e4bbb0634586e36a49863f26d24b0740451773"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4041",
    "kind": "arxiv",
    "version": 1
  }
}