Pith Number

pith:P2NF6CWR

pith:2012:P2NF6CWRYXIQJORWE6W476UAWA

not attested not anchored not stored refs pending

Spectral Estimation from Undersampled Data: Correlogram and Model-Based Least Squares

Mahdi Shaghaghi, Sergiy A. Vorobyov

arxiv:1202.2408 v2 · 2012-02-11 · math.ST · cs.IT · math.IT · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P2NF6CWRYXIQJORWE6W476UAWA}

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	2026-05-18T03:06:32.932216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e9a5f0ad1c5d104ba3627adcffa80b027b9fbbd5862f6645b576cc6abdfc32a

Aliases

arxiv: 1202.2408 · arxiv_version: 1202.2408v2 · doi: 10.48550/arxiv.1202.2408 · pith_short_12: P2NF6CWRYXIQ · pith_short_16: P2NF6CWRYXIQJORW · pith_short_8: P2NF6CWR

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/P2NF6CWRYXIQJORWE6W476UAWA \
  | 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: 7e9a5f0ad1c5d104ba3627adcffa80b027b9fbbd5862f6645b576cc6abdfc32a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a9be85971d119d517f06042166ed5d62cb4044b9c75c1429ee004ee7fd3656a",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2012-02-11T03:58:45Z",
    "title_canon_sha256": "e787a1727af4449f0ec61aa73b797f5451a8b9fa482922c3a7fa33b03521fcfc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2408",
    "kind": "arxiv",
    "version": 2
  }
}