Pith Number

pith:KPARFYZW

pith:2015:KPARFYZWTHQLKQ4CQSH42OKSVG

not attested not anchored not stored refs pending

Noise-shaping Quantization Methods for Frame-based and Compressive Sampling Systems

C. Sinan G\"unt\"urk, Evan Chou, Felix Krahmer, \"Ozg\"ur Y{\i}lmaz, Rayan Saab

arxiv:1502.05807 v1 · 2015-02-20 · cs.IT · math.FA · 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{KPARFYZWTHQLKQ4CQSH42OKSVG}

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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	2026-05-18T02:26:44.742943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53c112e33699e0b54382848fcd3952a9aa7ec4817bf4597a32ab87e6f7f3f2a6

Aliases

arxiv: 1502.05807 · arxiv_version: 1502.05807v1 · doi: 10.48550/arxiv.1502.05807 · pith_short_12: KPARFYZWTHQL · pith_short_16: KPARFYZWTHQLKQ4C · pith_short_8: KPARFYZW

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/KPARFYZWTHQLKQ4CQSH42OKSVG \
  | 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: 53c112e33699e0b54382848fcd3952a9aa7ec4817bf4597a32ab87e6f7f3f2a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a087f0977a4a93b148bad8eecd1b945a4300abac9150d427f0a6c8f4e8b24cc",
    "cross_cats_sorted": [
      "math.FA",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-02-20T09:21:57Z",
    "title_canon_sha256": "2c545f85eea2a191f9861994f76e707725bc931312a6bab2facfea5be74d18b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.05807",
    "kind": "arxiv",
    "version": 1
  }
}