Pith Number

pith:V5G7XP7L

pith:2014:V5G7XP7LPII3JPX7M55ET7WYVB

not attested not anchored not stored refs pending

Characterizations of families of rectangular finite impulse response, para-unitary systems

Daniel Alpay, Izchak Lewkowicz, Palle Jorgensen

arxiv:1410.0280 v2 · 2014-10-01 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V5G7XP7LPII3JPX7M55ET7WYVB}

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	2026-05-18T02:35:46.895423Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af4dfbbfeb7a11b4beff677a49fed8a86bf9c70420aca00d513e259905a2637a

Aliases

arxiv: 1410.0280 · arxiv_version: 1410.0280v2 · doi: 10.48550/arxiv.1410.0280 · pith_short_12: V5G7XP7LPII3 · pith_short_16: V5G7XP7LPII3JPX7 · pith_short_8: V5G7XP7L

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/V5G7XP7LPII3JPX7M55ET7WYVB \
  | 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: af4dfbbfeb7a11b4beff677a49fed8a86bf9c70420aca00d513e259905a2637a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "734960ef6cf28aa2e7fd2106e0a93529d4c46b6e72a02c74691bee0823591f9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2014-10-01T16:42:06Z",
    "title_canon_sha256": "9a7edabe768c4c8582ebb39a7601f55898431ba6bffc462e84fc2c144cc80d8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.0280",
    "kind": "arxiv",
    "version": 2
  }
}