Pith Number

pith:S7HGPHKX

pith:2025:S7HGPHKX6GFUXJCXEMLX5RKTOV

not attested not anchored not stored refs pending

Contiguity relations for finite families of orthogonal polynomials in the Askey scheme

Lucia Morey, Luc Vinet, Meri Zaimi, Nicolas Cramp\'e

arxiv:2504.20802 v1 · 2025-04-29 · 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{S7HGPHKX6GFUXJCXEMLX5RKTOV}

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.

Cited by

1 paper in Pith

Exactly solvable inhomogeneous XY spin chain

Receipt and verification

First computed	2026-07-05T10:55:49.079180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97ce679d57f18b4ba45723177ec5537564203e74e637b02123635a517873dbc3

Aliases

arxiv: 2504.20802 · arxiv_version: 2504.20802v1 · doi: 10.48550/arxiv.2504.20802 · pith_short_12: S7HGPHKX6GFU · pith_short_16: S7HGPHKX6GFUXJCX · pith_short_8: S7HGPHKX

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/S7HGPHKX6GFUXJCXEMLX5RKTOV \
  | 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: 97ce679d57f18b4ba45723177ec5537564203e74e637b02123635a517873dbc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09e089ced55c86511d0472f2d3aaf00a388f9228d65f0be0100c0cd42b96b1a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2025-04-29T14:14:50Z",
    "title_canon_sha256": "63ca5ad70a852d788ef1276d9ecbf15f319504a98939d3f35ff8c41bd3b84fa4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.20802",
    "kind": "arxiv",
    "version": 1
  }
}