Pith Number

pith:UGZ2EBK5

pith:2018:UGZ2EBK5KH3DPLFNRCX2OM2KHL

not attested not anchored not stored refs pending

A quick description for engineering students of distributions (generalized functions) and their Fourier transforms

Michael Cwikel

arxiv:1810.05722 v2 · 2018-10-12 · 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{UGZ2EBK5KH3DPLFNRCX2OM2KHL}

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	2026-05-18T00:02:54.507702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1b3a2055d51f637acad88afa7334a3ae9220eafb42497e0cca4624d1d36d6bb

Aliases

arxiv: 1810.05722 · arxiv_version: 1810.05722v2 · doi: 10.48550/arxiv.1810.05722 · pith_short_12: UGZ2EBK5KH3D · pith_short_16: UGZ2EBK5KH3DPLFN · pith_short_8: UGZ2EBK5

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/UGZ2EBK5KH3DPLFNRCX2OM2KHL \
  | 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: a1b3a2055d51f637acad88afa7334a3ae9220eafb42497e0cca4624d1d36d6bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83645f45a315e1d190ab4b3c2962a1363b11abffd63ace0a94f9b4ec7fe88dad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2018-10-12T20:58:55Z",
    "title_canon_sha256": "3fa916af0db3b742a658560d71b44008268d09de4378d4a07cf605e7a44edd98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.05722",
    "kind": "arxiv",
    "version": 2
  }
}