Pith Number

pith:475YYZGI

pith:2020:475YYZGIJFBWOSJ3VJEOFXYDO6

not attested not anchored not stored refs pending

Real-time forecasts of the 2019-nCoV epidemic in China from February 5th to February 24th, 2020

A. Kirpich, G. Chowell, J. M. Hyman, K. Roosa, P. Yan, R. Luo, R. Rothenberg, Y. Lee

arxiv:2002.05069 v1 · 2020-02-12 · q-bio.PE · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{475YYZGIJFBWOSJ3VJEOFXYDO6}

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	2026-07-05T00:40:21.086147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7fb8c64c8494367493baa48e2df03778f3a8ad5951d165153816fa5247370bc

Aliases

arxiv: 2002.05069 · arxiv_version: 2002.05069v1 · doi: 10.48550/arxiv.2002.05069 · pith_short_12: 475YYZGIJFBW · pith_short_16: 475YYZGIJFBWOSJ3 · pith_short_8: 475YYZGI

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/475YYZGIJFBWOSJ3VJEOFXYDO6 \
  | 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: e7fb8c64c8494367493baa48e2df03778f3a8ad5951d165153816fa5247370bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e2e893c32ed3d7ab792e081829e8e175f892a1c8a837f422ddc00d82047a989",
    "cross_cats_sorted": [
      "q-bio.QM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2020-02-12T16:19:10Z",
    "title_canon_sha256": "4c4f05151ef72f0e323c40b64e3ea85f679c66c9802a7d0b0c493a5b8506697a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.05069",
    "kind": "arxiv",
    "version": 1
  }
}