Pith Number

pith:7VMLBUYQ

pith:2021:7VMLBUYQYJFM5GERRTC7YVLIHD

not attested not anchored not stored refs pending

Continuous-time stochastic processes for the spread of COVID-19 disease simulated via a Monte Carlo approach and comparison with deterministic models

Fabiana Calleri, Giovanni Nastasi, Vittorio Romano

arxiv:2103.09178 v2 · 2021-03-16 · q-bio.PE · physics.bio-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7VMLBUYQYJFM5GERRTC7YVLIHD}

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	2026-07-05T03:14:33.771286Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd58b0d310c24ace98918cc5fc556838f13cfc1b312f3adf0f18311c2328acf0

Aliases

arxiv: 2103.09178 · arxiv_version: 2103.09178v2 · doi: 10.48550/arxiv.2103.09178 · pith_short_12: 7VMLBUYQYJFM · pith_short_16: 7VMLBUYQYJFM5GER · pith_short_8: 7VMLBUYQ

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/7VMLBUYQYJFM5GERRTC7YVLIHD \
  | 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: fd58b0d310c24ace98918cc5fc556838f13cfc1b312f3adf0f18311c2328acf0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ea645c3c1156349bcd3898504391a4f4c47b98d9bac7cabf9b66b3ce058c828",
    "cross_cats_sorted": [
      "physics.bio-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2021-03-16T16:27:01Z",
    "title_canon_sha256": "a2146e1d13763c92203120e74fc0a4163fca46353678a2fc7a4d3ae1fed3e0a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.09178",
    "kind": "arxiv",
    "version": 2
  }
}