Pith Number

pith:WTWYGGVA

pith:1995:WTWYGGVAASRR4UBO2MGCSLIDEJ

not attested not anchored not stored refs pending

A simpler characterization of Sheffer polynomial

Alessandro Di Bucchianico, Daniel E. Loeb

arxiv:math/9502215 v1 · 1995-02-09 · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WTWYGGVAASRR4UBO2MGCSLIDEJ}

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	2026-05-18T01:05:50.504977Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4ed831aa004a31e502ed30c292d0322608a8fd65d13fb2b053a7d3cae96a9d2

Aliases

arxiv: math/9502215 · arxiv_version: math/9502215v1 · doi: 10.48550/arxiv.math/9502215 · pith_short_12: WTWYGGVAASRR · pith_short_16: WTWYGGVAASRR4UBO · pith_short_8: WTWYGGVA

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/WTWYGGVAASRR4UBO2MGCSLIDEJ \
  | 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: b4ed831aa004a31e502ed30c292d0322608a8fd65d13fb2b053a7d3cae96a9d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4be50bf655c53ca71bb91b0683319e52db2e91d030faed3be8258949423b88d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.CO",
    "submitted_at": "1995-02-09T00:00:00Z",
    "title_canon_sha256": "6d741a223165bf1f84fa5edfbad17adb2911375e527ccb39266ebe0d8b110100"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9502215",
    "kind": "arxiv",
    "version": 1
  }
}