Pith Number

pith:RIPP3MVG

pith:2020:RIPP3MVGF6FCJAC2THUOL67K2V

not attested not anchored not stored refs pending

Inferring change points in the COVID-19 spreading reveals the effectiveness of interventions

F. Paul Spitzner, Joao Pinheiro Neto, Johannes Zierenberg, Jonas Dehning, Michael Wibral, Michael Wilczek, Viola Priesemann

arxiv:2004.01105 v3 · 2020-04-02 · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RIPP3MVGF6FCJAC2THUOL67K2V}

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	2026-07-05T05:16:29.725340Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a1efdb2a62f8a24805a99e8e5fbead56e1c836828697388d3ecd2b1d013842f

Aliases

arxiv: 2004.01105 · arxiv_version: 2004.01105v3 · doi: 10.48550/arxiv.2004.01105 · pith_short_12: RIPP3MVGF6FC · pith_short_16: RIPP3MVGF6FCJAC2 · pith_short_8: RIPP3MVG

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/RIPP3MVGF6FCJAC2THUOL67K2V \
  | 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: 8a1efdb2a62f8a24805a99e8e5fbead56e1c836828697388d3ecd2b1d013842f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bce684eda97a21d5a662dc8dfc15589ab65f9abe4bc8336d47d6b44a572ff0ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2020-04-02T16:09:56Z",
    "title_canon_sha256": "0ae4f152ee5a475c2218f43bbd96aec37e7dda2cbfa0442d10359876048874a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.01105",
    "kind": "arxiv",
    "version": 3
  }
}