Pith Number

pith:GBTURDRC

pith:1995:GBTURDRCQK72KERHVCHRJ7RYHI

not attested not anchored not stored refs pending

Maple umbral calculus package

Alessandro Di Bucchianico, Anne Bottreau, Daniel E. Loeb

arxiv:math/9502213 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{GBTURDRCQK72KERHVCHRJ7RYHI}

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	2026-05-18T01:05:50.511898Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3067488e2282bfa51227a88f14fe383a344328350f39327624e57cad9a6c388a

Aliases

arxiv: math/9502213 · arxiv_version: math/9502213v1 · doi: 10.48550/arxiv.math/9502213 · pith_short_12: GBTURDRCQK72 · pith_short_16: GBTURDRCQK72KERH · pith_short_8: GBTURDRC

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/GBTURDRCQK72KERHVCHRJ7RYHI \
  | 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: 3067488e2282bfa51227a88f14fe383a344328350f39327624e57cad9a6c388a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c584413fa02fde2eb2ae66bd830d995ac04e2cb796bfe56064835ed8267f9284",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.CO",
    "submitted_at": "1995-02-09T00:00:00Z",
    "title_canon_sha256": "f9baebecc81523303e17a97e6e844ab159a81365a7ea12cec65be46e539dbff7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9502213",
    "kind": "arxiv",
    "version": 1
  }
}