Pith Number

pith:K7NWIUTD

pith:2021:K7NWIUTDINJNV3SLF6VXHIFSYM

not attested not anchored not stored refs pending

A quantitative assessment of epidemiological parameters to model COVID- 19 burden

Agnese Zardini, Alessia Melegaro, Danilo Cereda, Filippo Trentini, Giorgio Guzzetta, Marcello Tirani, Marco Ajelli, Margherita Galli, Mattia Manica, Piero Poletti, Raffaella Piccarreta, Stefano Merler, Valentina Marziano

arxiv:2103.15780 v1 · 2021-03-29 · 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{K7NWIUTDINJNV3SLF6VXHIFSYM}

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	2026-07-05T03:58:01.882290Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57db6452634352daee4b2fab73a0b2c31b21b49bc820a8dea067840cec675642

Aliases

arxiv: 2103.15780 · arxiv_version: 2103.15780v1 · doi: 10.48550/arxiv.2103.15780 · pith_short_12: K7NWIUTDINJN · pith_short_16: K7NWIUTDINJNV3SL · pith_short_8: K7NWIUTD

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/K7NWIUTDINJNV3SLF6VXHIFSYM \
  | 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: 57db6452634352daee4b2fab73a0b2c31b21b49bc820a8dea067840cec675642

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f79de57fb7ba172040a2adc06ce34b07aca438b6faf05b0642a6eee3a7de00a4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2021-03-29T17:17:53Z",
    "title_canon_sha256": "c93ca0ee61deb7e975021f3346ad69aec0647715048ff8031cd0e54a2ae0302d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.15780",
    "kind": "arxiv",
    "version": 1
  }
}