Pith Number

pith:J5NI6QCN

pith:2018:J5NI6QCNHCA63DX7IJJBK5ABXJ

not attested not anchored not stored refs pending

Parseval frames of piecewise constant functions

Dorin Ervin Dutkay, Rajitha Ranasinghe

arxiv:1804.03577 v2 · 2018-04-10 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J5NI6QCNHCA63DX7IJJBK5ABXJ}

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	2026-05-17T23:56:41.398694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f5a8f404d3881ed8eff4252157401ba650fe9686d8e6fecf39e98721f1c1eec

Aliases

arxiv: 1804.03577 · arxiv_version: 1804.03577v2 · doi: 10.48550/arxiv.1804.03577 · pith_short_12: J5NI6QCNHCA6 · pith_short_16: J5NI6QCNHCA63DX7 · pith_short_8: J5NI6QCN

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/J5NI6QCNHCA63DX7IJJBK5ABXJ \
  | 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: 4f5a8f404d3881ed8eff4252157401ba650fe9686d8e6fecf39e98721f1c1eec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c872c1b37b8a50ab334200cd72b427452cb3216265b3cf5350e303010d97a74a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2018-04-10T14:57:37Z",
    "title_canon_sha256": "a96b4ca91e8be52f31a2b00e9dfe41025449812aff2cc8af207f1679bb696bd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.03577",
    "kind": "arxiv",
    "version": 2
  }
}