Pith Number

pith:W5KHWEZN

pith:1995:W5KHWEZNVNMBAFDMCDPMMRZPKB

not attested not anchored not stored refs pending

The iterated logarithmic algebra II: Sheffer sequences

Daniel E. Loeb

arxiv:math/9502220 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{W5KHWEZNVNMBAFDMCDPMMRZPKB}

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	2026-05-18T01:05:50.478392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7547b132dab5810146c10dec6472f504946fbca3726823e11e980f87f31df4a

Aliases

arxiv: math/9502220 · arxiv_version: math/9502220v1 · doi: 10.48550/arxiv.math/9502220 · pith_short_12: W5KHWEZNVNMB · pith_short_16: W5KHWEZNVNMBAFDM · pith_short_8: W5KHWEZN

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/W5KHWEZNVNMBAFDMCDPMMRZPKB \
  | 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: b7547b132dab5810146c10dec6472f504946fbca3726823e11e980f87f31df4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96c469ff8cf5dcf21b381a2a16692d9e42e21942ae4d074f779ec308c50addbd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.CO",
    "submitted_at": "1995-02-09T00:00:00Z",
    "title_canon_sha256": "a604202bb1a22aafedd2a05ecff9bd5e391bcd6c6c0cd16bd041af8c271a2354"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9502220",
    "kind": "arxiv",
    "version": 1
  }
}