Pith Number

pith:NUM7QML4

pith:2020:NUM7QML4BTL4ZAXSKZU6LSZXN5

not attested not anchored not stored refs pending

Frequency Detection and Change Point Estimation for Time Series of Complex Oscillation

Hau-Tieng Wu, Zhou Zhou

arxiv:2005.01899 v2 · 2020-05-05 · stat.ME · math.ST · 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{NUM7QML4BTL4ZAXSKZU6LSZXN5}

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	2026-07-05T06:32:30.687242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d19f8317c0cd7cc82f25669e5cb376f6cd03269c153ff0c6370e5d1afe344b5

Aliases

arxiv: 2005.01899 · arxiv_version: 2005.01899v2 · doi: 10.48550/arxiv.2005.01899 · pith_short_12: NUM7QML4BTL4 · pith_short_16: NUM7QML4BTL4ZAXS · pith_short_8: NUM7QML4

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/NUM7QML4BTL4ZAXSKZU6LSZXN5 \
  | 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: 6d19f8317c0cd7cc82f25669e5cb376f6cd03269c153ff0c6370e5d1afe344b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d6edc57fea15ea71fe613d2a698469cca0ffaa3369dbfcdc4af32507a7f60f7",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2020-05-05T01:20:04Z",
    "title_canon_sha256": "8805df909dfe922fc3829f2f583a240530c31bea122d94354241fbd165b6e122"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.01899",
    "kind": "arxiv",
    "version": 2
  }
}