Pith Number

pith:54OBF4JQ

pith:2020:54OBF4JQ33L5HNMYVXXC2SOOHF

not attested not anchored not stored refs pending

Group design in group testing for COVID-19 : A French case-study

Bernard Fortz, Diego Cattaruzza, Fr\'ed\'eric Semet, Kaba Keita, Luce Brotcorne, Martine Labb\'e, Maxime Ogier, Tifaout Almeftah

arxiv:2011.06927 v1 · 2020-11-13 · stat.ME · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{54OBF4JQ33L5HNMYVXXC2SOOHF}

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	2026-07-05T01:51:26.195057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef1c12f130ded7d3b598adee2d49ce3942ca01ecfe5fbc87e4a7df176d9c39ee

Aliases

arxiv: 2011.06927 · arxiv_version: 2011.06927v1 · doi: 10.48550/arxiv.2011.06927 · pith_short_12: 54OBF4JQ33L5 · pith_short_16: 54OBF4JQ33L5HNMY · pith_short_8: 54OBF4JQ

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/54OBF4JQ33L5HNMYVXXC2SOOHF \
  | 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: ef1c12f130ded7d3b598adee2d49ce3942ca01ecfe5fbc87e4a7df176d9c39ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d53e79515b0b13e54a09e629d2f46130b03f44fd900aed3b3edf99c816e4f326",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2020-11-13T14:21:19Z",
    "title_canon_sha256": "6b96c84aded62bec8bf03a0768408f3d1f6a26160075e07c52e90d05af3b7b6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.06927",
    "kind": "arxiv",
    "version": 1
  }
}