Pith Number

pith:A3VU2RCU

pith:2021:A3VU2RCU26QY27IUBQ7YYE7E6F

not attested not anchored not stored refs pending

Estimating Active Cases of COVID-19

Antonio Fern\'andez Anta, Antonio Ortega, Augusto Garc\'ia-Ag\'undez, Carlos Baquero, Christin Glorioso, Chryssis Georgiou, Davide Frey, Efstathios Stavrakis, Elisa Cabana, Govind Jeevan, Harold Hern\'andez, Javier \'Alvarez, Jaya Prakash Champati, Jes\'us Rufino, Mathieu Goessens, Nicolas Nicolaou, Oluwasegun Ojo, Raquel Menezes, Ra\'ul Moreno, Rosa Lillo

arxiv:2108.03284 v1 · 2021-08-06 · physics.soc-ph · cs.DC · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A3VU2RCU26QY27IUBQ7YYE7E6F}

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	2026-07-05T03:03:51.338963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06eb4d4454d7a18d7d140c3f8c13e4f14adc6af305bb91781bcfb26c1ef32c24

Aliases

arxiv: 2108.03284 · arxiv_version: 2108.03284v1 · doi: 10.48550/arxiv.2108.03284 · pith_short_12: A3VU2RCU26QY · pith_short_16: A3VU2RCU26QY27IU · pith_short_8: A3VU2RCU

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/A3VU2RCU26QY27IUBQ7YYE7E6F \
  | 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: 06eb4d4454d7a18d7d140c3f8c13e4f14adc6af305bb91781bcfb26c1ef32c24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec29722cfad2d772f127e124e7beee49a25c92e5582295e742ebcf157ad91c9a",
    "cross_cats_sorted": [
      "cs.DC",
      "stat.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2021-08-06T19:46:53Z",
    "title_canon_sha256": "727d2e74d94d3b567a7c7eb2f905d336715c4d832d30ee68f3d86a52f29a542a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.03284",
    "kind": "arxiv",
    "version": 1
  }
}