Pith Number

pith:7QA366H4

pith:2021:7QA366H43N2QYXYBBFHGLEOM5L

not attested not anchored not stored refs pending

Exploring the space-time pattern of log-transformed infectious count of COVID-19: a clustering-segmented autoregressive sigmoid model

Meiqian Chen, Xiaoping Shi, Yucheng Dong

arxiv:2102.13287 v1 · 2021-02-26 · stat.ME · stat.AP · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7QA366H43N2QYXYBBFHGLEOM5L}

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	2026-07-05T02:18:35.923288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc01bf78fcdb750c5f01094e6591ccead059fc9c307ea638002cdf626b00bc0b

Aliases

arxiv: 2102.13287 · arxiv_version: 2102.13287v1 · doi: 10.48550/arxiv.2102.13287 · pith_short_12: 7QA366H43N2Q · pith_short_16: 7QA366H43N2QYXYB · pith_short_8: 7QA366H4

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/7QA366H43N2QYXYBBFHGLEOM5L \
  | 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: fc01bf78fcdb750c5f01094e6591ccead059fc9c307ea638002cdf626b00bc0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88fcc0e87e7135d8406f6f8010cecabfc0e51aa8357b6436959233fc3bc29aa3",
    "cross_cats_sorted": [
      "stat.AP",
      "stat.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2021-02-26T03:08:50Z",
    "title_canon_sha256": "8752a39da4fceacf66b388326427426b1a287b57a7eaf64e14cdc3e5f5c09bb0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.13287",
    "kind": "arxiv",
    "version": 1
  }
}