Pith Number

pith:3CM7LNHZ

pith:2015:3CM7LNHZJUIQWLCOKV33T5O2AU

not attested not anchored not stored refs pending

A Power Variance Test for Nonstationarity in Complex-Valued Signals

Adam M. Sykulski, Jeffrey J. Early, Jonathan M. Lilly, Sofia C. Olhede, Thomas E. Bartlett

arxiv:1508.05593 v2 · 2015-08-23 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3CM7LNHZJUIQWLCOKV33T5O2AU}

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	2026-05-18T01:30:48.685577Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d899f5b4f94d110b2c4e5577b9f5da051b313687543f7a709448ddd9babff434

Aliases

arxiv: 1508.05593 · arxiv_version: 1508.05593v2 · doi: 10.48550/arxiv.1508.05593 · pith_short_12: 3CM7LNHZJUIQ · pith_short_16: 3CM7LNHZJUIQWLCO · pith_short_8: 3CM7LNHZ

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/3CM7LNHZJUIQWLCOKV33T5O2AU \
  | 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: d899f5b4f94d110b2c4e5577b9f5da051b313687543f7a709448ddd9babff434

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9138d5aafd7ac82eae95198310744bc5d83bc8f2efd00a6aac04479d7b3efc1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2015-08-23T10:47:07Z",
    "title_canon_sha256": "8c1d90cebf70cf0029517f747df8bc7840edd197a18784f62444793de9b3f12c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.05593",
    "kind": "arxiv",
    "version": 2
  }
}