Pith Number

pith:F6PZI2JO

pith:2022:F6PZI2JO7Q5TIDFFJXOUWXCOOH

not attested not anchored not stored refs pending

Estimation of the incubation period and generation time of SARS-CoV-2 Alpha and Delta variants from contact tracing data

Agnese Zardini, Alfredo De Bellis, Ana I. Bento, Antonino Bella, Eufemia Bisaccia, Filippo Trentini, Flavia Riccardo, Francesco Venturelli, Giorgio Guzzetta, Marco Ajelli, Maria Litvinova, Massimo Vicentini, Mattia Manica, Pamela Mancuso, Paolo Giorgi Rossi, Patrizio Pezzotti, Piero Poletti, Stefano Merler, the Reggio Emilia COVID-19 Working Group, Valentina Marziano, Valeria d'Andrea

arxiv:2203.07063 v1 · 2022-03-11 · 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{F6PZI2JO7Q5TIDFFJXOUWXCOOH}

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	2026-07-05T04:04:58.939007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f9f94692efc3b340ca54ddd4b5c4e71ce3cab7c1a761c8edb42335a3e740fe6

Aliases

arxiv: 2203.07063 · arxiv_version: 2203.07063v1 · doi: 10.48550/arxiv.2203.07063 · pith_short_12: F6PZI2JO7Q5T · pith_short_16: F6PZI2JO7Q5TIDFF · pith_short_8: F6PZI2JO

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/F6PZI2JO7Q5TIDFFJXOUWXCOOH \
  | 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: 2f9f94692efc3b340ca54ddd4b5c4e71ce3cab7c1a761c8edb42335a3e740fe6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62bbd59964cbedcc28036176b584c8436236c1853423291b9cf9e1e55c1c00e7",
    "cross_cats_sorted": [
      "q-bio.QM"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2022-03-11T14:59:21Z",
    "title_canon_sha256": "f8c151e5c5104602b9ca9de8615de9eb66d51f22480a5af787899fae7e4f2992"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.07063",
    "kind": "arxiv",
    "version": 1
  }
}