Pith Number

pith:4GPVVSVB

pith:2014:4GPVVSVBKZEWHCITCDS7QWVUIN

not attested not anchored not stored refs pending

Band Limited Signals Observed Over Finite Spatial and Temporal Windows: An Upper Bound to Signal Degrees of Freedom

Farhana Bashar, S.M. Akramus Salehin, Thushara D. Abhayapala

arxiv:1405.2163 v1 · 2014-05-09 · 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{4GPVVSVBKZEWHCITCDS7QWVUIN}

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	2026-05-18T02:52:13.490806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e19f5acaa1564963891310e5f85ab44346c206a47a1d1a21d057a947d93a7323

Aliases

arxiv: 1405.2163 · arxiv_version: 1405.2163v1 · doi: 10.48550/arxiv.1405.2163 · pith_short_12: 4GPVVSVBKZEW · pith_short_16: 4GPVVSVBKZEWHCIT · pith_short_8: 4GPVVSVB

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/4GPVVSVBKZEWHCITCDS7QWVUIN \
  | 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: e19f5acaa1564963891310e5f85ab44346c206a47a1d1a21d057a947d93a7323

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a18da4c06b6a3d28137be7a2b5393b61b0e0a89b58ceba649075a13af4223b22",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-05-09T07:46:13Z",
    "title_canon_sha256": "f32e30abe99dc801a52e77b4f673214b2abf4a2c024713d527cd059d09cc4b90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.2163",
    "kind": "arxiv",
    "version": 1
  }
}