Pith Number

pith:MHFJRGJA

pith:2018:MHFJRGJAVXG2OVKRIBA63NQZDH

not attested not anchored not stored refs pending

Laguerre-Freud equations for Generalized Hahn polynomials of type I

Diego Dominici

arxiv:1801.02267 v1 · 2018-01-07 · 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{MHFJRGJAVXG2OVKRIBA63NQZDH}

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	2026-05-18T00:26:32.253068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61ca989920adcda755514041edb61919ec1d1fef4f372a6247a6101035e99c72

Aliases

arxiv: 1801.02267 · arxiv_version: 1801.02267v1 · doi: 10.48550/arxiv.1801.02267 · pith_short_12: MHFJRGJAVXG2 · pith_short_16: MHFJRGJAVXG2OVKR · pith_short_8: MHFJRGJA

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/MHFJRGJAVXG2OVKRIBA63NQZDH \
  | 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: 61ca989920adcda755514041edb61919ec1d1fef4f372a6247a6101035e99c72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "949f23c820cef926c762823e30e7419b913e0164493d3cbee5830322c6c844a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2018-01-07T23:09:34Z",
    "title_canon_sha256": "ead5d893bb3f1e16b1d43d25d679c3690ba0c54cf142c7888a82b56ec34c0eb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02267",
    "kind": "arxiv",
    "version": 1
  }
}