Pith Number

pith:REBKFPVO

pith:2018:REBKFPVOOEIWA2VYIHQH3EDRWN

not attested not anchored not stored refs pending

On difference operators for symmetric Krall-Hahn polynomials

Antonio J. Dur\'an, Manuel D. de la Iglesia

arxiv:1801.04625 v2 · 2018-01-15 · 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{REBKFPVOOEIWA2VYIHQH3EDRWN}

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	2026-05-18T00:22:44.231305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8902a2beae7111606ab841e07d9071b34d04bcb2512af2966b49536ee0fd0f5f

Aliases

arxiv: 1801.04625 · arxiv_version: 1801.04625v2 · doi: 10.48550/arxiv.1801.04625 · pith_short_12: REBKFPVOOEIW · pith_short_16: REBKFPVOOEIWA2VY · pith_short_8: REBKFPVO

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/REBKFPVOOEIWA2VYIHQH3EDRWN \
  | 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: 8902a2beae7111606ab841e07d9071b34d04bcb2512af2966b49536ee0fd0f5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9776148c97013028bdeeea4fc6ab1dd5c9d3f20d093ed9e49e21037aac6d7842",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2018-01-15T00:19:57Z",
    "title_canon_sha256": "2c26691521a4a85524e488aff3aba1584d4e9bae3c8737ab7eba70cd1056e094"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04625",
    "kind": "arxiv",
    "version": 2
  }
}