Pith Number

pith:ZUL4HXUI

pith:2013:ZUL4HXUIZWOB3JBXYJGFNGDJ3H

not attested not anchored not stored refs pending

Exponential Approximation of Bandlimited Functions from Average Oversampling

Haizhang Zhang

arxiv:1311.4294 v2 · 2013-11-18 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZUL4HXUIZWOB3JBXYJGFNGDJ3H}

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	2026-05-18T02:48:26.023516Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd17c3de88cd9c1da437c24c569869d9c257f282ce83c88ef65cc6e59e16329c

Aliases

arxiv: 1311.4294 · arxiv_version: 1311.4294v2 · doi: 10.48550/arxiv.1311.4294 · pith_short_12: ZUL4HXUIZWOB · pith_short_16: ZUL4HXUIZWOB3JBX · pith_short_8: ZUL4HXUI

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/ZUL4HXUIZWOB3JBXYJGFNGDJ3H \
  | 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: cd17c3de88cd9c1da437c24c569869d9c257f282ce83c88ef65cc6e59e16329c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37023eff01bc495c2b322a7ea38984f0486b4faae98bf2b2a0fde327d866bfed",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-11-18T08:41:58Z",
    "title_canon_sha256": "70a0fd929f976c123c4dcb1d0a889ea2fc8d5e48ed068389bb2127039912765c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4294",
    "kind": "arxiv",
    "version": 2
  }
}