Pith Number

pith:ZQSLPSJJ

pith:2020:ZQSLPSJJRP5JII6EAYXSURJRWX

not attested not anchored not stored refs pending

Time Fused Coefficient SIR Model with Application to COVID-19 Epidemic in the United States

Guanyu Hu, Hou-Cheng Yang, Qingyang Liu, Yishu Xue, Yuqing Pan

arxiv:2008.04284 v3 · 2020-08-10 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZQSLPSJJRP5JII6EAYXSURJRWX}

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	2026-07-05T02:21:52.201485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc24b7c9298bfa9423c4062f2a4531b5eefce33bc78fd18833369820c657bb10

Aliases

arxiv: 2008.04284 · arxiv_version: 2008.04284v3 · doi: 10.48550/arxiv.2008.04284 · pith_short_12: ZQSLPSJJRP5J · pith_short_16: ZQSLPSJJRP5JII6E · pith_short_8: ZQSLPSJJ

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/ZQSLPSJJRP5JII6EAYXSURJRWX \
  | 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: cc24b7c9298bfa9423c4062f2a4531b5eefce33bc78fd18833369820c657bb10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d46d2dc367236b7d2a865770ea43c30eb09c6a5b25abc708eaec5d7dcbf8dc25",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2020-08-10T17:27:48Z",
    "title_canon_sha256": "534dae5d4314872d5155805ff87d61861b85b4759800f7721dfd482f7a928f4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.04284",
    "kind": "arxiv",
    "version": 3
  }
}