Pith Number

pith:LIF4PAP7

pith:2021:LIF4PAP7AHSN75EJFW4LKNDVC2

not attested not anchored not stored refs pending

A study on the possible merits of using symptomatic cases to trace the development of the COVID-19 pandemic

Antonio Zoccoli, Daniele Pedrini, Dario Menasce, Gianluca Bonifazi, Luca Lista, Mauro Mezzetto, Roberto Spighi

arxiv:2101.01414 v2 · 2021-01-05 · physics.soc-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{LIF4PAP7AHSN75EJFW4LKNDVC2}

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	2026-07-05T02:20:42.968963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a0bc781ff01e4dff4892db8b5347516b200766a006484f1c1f29a374b27fefa

Aliases

arxiv: 2101.01414 · arxiv_version: 2101.01414v2 · doi: 10.48550/arxiv.2101.01414 · pith_short_12: LIF4PAP7AHSN · pith_short_16: LIF4PAP7AHSN75EJ · pith_short_8: LIF4PAP7

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/LIF4PAP7AHSN75EJFW4LKNDVC2 \
  | 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: 5a0bc781ff01e4dff4892db8b5347516b200766a006484f1c1f29a374b27fefa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48492f911177b7354fe3120a4967a9cd77cbb29fca4979e13710dfc7c8c23f70",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2021-01-05T08:49:40Z",
    "title_canon_sha256": "3d42933100c45651099ec5ef76b5ce8c3329e2ec7a051183d3115181611349ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.01414",
    "kind": "arxiv",
    "version": 2
  }
}